first commit

2026-04-04 15:32:51 +08:00
commit a862314d94
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--- a/20260224034907/.config
+++ b/20260224034907/.config
--- a/20260224034907/build.log
+++ b/20260224034907/build.log
--- a/20260224034907/coreboot_edk2-kaisa-mrchromebox_20260224.rom
+++ b/20260224034907/coreboot_edk2-kaisa-mrchromebox_20260224.rom
--- a/20260224034907/coreboot_edk2-kaisa-mrchromebox_20260224.rom.sha1
+++ b/20260224034907/coreboot_edk2-kaisa-mrchromebox_20260224.rom.sha1
@@ -0,0 +1 @@
+30a2421f4faf288d02063c4adecfabefe54a1894  coreboot_edk2-kaisa-mrchromebox_20260224.rom
--- a/AnalysisLog_综合记录.md
+++ b/AnalysisLog_综合记录.md
@@ -0,0 +1,110 @@
+# 关机/蓝屏分析综合记录
+
+**生成时间**：2026-03-07  
+**机器**：DESKTOP-56TM6AL（Chromebox Kaisa，Windows 10 企业版 LTSC 19044）
+
+---
+
+## 1. 热事件关机（Event 86）
+
+### 最近记录
+- **03/05/2026 17:42:29**：由于严重的热事件，系统已关闭  
+- ACPI 热区域：Intel(R) Dynamic Tuning  
+- 其他：03/03 08:02、03/02 04:37 等同样为热事件关机
+
+### 结论
+- 根因：ACPI 热区超临界 → Kernel-Power Event 86 → 系统保护性关机
+- 与蓝屏 0x3B 无关，属不同故障类型
+
+---
+
+## 2. 蓝屏 0x3B（SYSTEM_SERVICE_EXCEPTION）
+
+### 最近记录
+| 时间 | BugCheck | 故障模块 | Minidump |
+|------|----------|----------|----------|
+| 03/06 23:34 | 0x3B / c0000005 | nt!IoSetIoCompletionEx2+0x50 | 030626-9453-01.dmp |
+| 02/27 16:03 | 0x3B / c0000005 | nt!MiGetVadWakeList | 022726-9906-01.dmp |
+| 02/24 13:20 | 0x3B / c0000005 | nt!ObCloseHandleTableEntry | 022426-8421-01.dmp |
+
+### 03/06 蓝屏 WinDbg 分析摘要
+- **崩溃指令**：`mov qword ptr [rdi+30h], rax` @ nt!IoSetIoCompletionEx2+0x50
+- **rdi**：ffffde8d00000000（低 32 位为 0，疑似损坏指针）
+- **PROCESS_NAME**：svchost.exe
+- **BLOCKED_THREAD**：ffffde8d87032080
+
+### 调用栈
+```
+svchost.exe
+  → NtAlpcSendWaitReceivePort
+  → AlpcpProcessSynchronousRequest
+  → AlpcpReceiveSynchronousReply
+  → AlpcpSignalAndWait
+  → IoSetIoCompletionEx2  ← 崩溃
+```
+
+### 结论
+- 内核在 ALPC 同步通信的 I/O 完成路径上访问了无效内存
+- 可能由第三方驱动破坏 I/O 完成对象或传入错误指针引起
+
+---
+
+## 3. 可疑驱动（lm 输出）
+
+| 驱动 | 用途 | 备注 |
+|------|------|------|
+| OrayVGC / OrayUSBVHCI | 向日葵远程（Oray） | 高优先级排查 |
+| ectest | ec-test-app (ACPI/EC 测试) | 测试用，可卸载观察 |
+| WinRing0x64 | 硬件监控（SpeedFan、Core Temp 等） | 底层访问，易冲突 |
+| speedfan | SpeedFan | 同上 |
+| PawnIO | 未知 | 建议确认来源 |
+| dptf_acpi / dptf_cpu / esif_lf | Intel DPTF | 热管理，调用栈未直接涉及 |
+
+---
+
+## 4. 固件与 DPTF 控扇
+
+### 固件 20260224034907
+- 路径：`20260224034907\.config`
+- **CONFIG_MINIPC_EC_FULL_FAN_CONTROL**：未设置（EC 非全权控扇）
+- **CONFIG_DRIVERS_INTEL_DPTF_DISABLE_ACTIVE_FAN**：未设置（DPTF 主动风扇开启）
+- **CONFIG_DRIVERS_INTEL_DPTF_ECTST_FAND_DEBUG**：y（ECT0 调试暴露）
+
+### Windows 实测
+- INT3400 / INT3404：已枚举，状态 OK
+- 电源方案：高性能（8c5e7fda...）
+- watch 模式：CPU 升温时 FAND 无变化 → DPTF 未写 _FSL
+- 结论：固件为 DPTF 控扇配置，但 Windows DPTF 驱动/策略未实际下发控扇
+
+---
+
+## 5. 相关脚本与报告
+
+| 文件 | 用途 |
+|------|------|
+| 收集关机信息.ps1 | 生成 ShutdownReport_*.txt |
+| 收集蓝屏信息.ps1 | 生成 BSODReport_*.txt |
+| Monitor_DPTF_Fan.ps1 | check / watch / poll / etw |
+| Test_ECT0_FST_FSL.ps1 | 读写 _SB.ECT0._FST / _FSL |
+| 温控与EC传感器分析笔记.md | 温控/DPTF/EC 分析整理 |
+
+---
+
+## 6. 后续排查建议
+
+### 热事件关机
+- 继续监控温度（ectool、LibreHardwareMonitor）
+- 确认 DPTF 是否在高级电源/策略中被禁用
+- 必要时改善散热或调整 EC 曲线
+
+### 蓝屏 0x3B
+1. 优先：卸载或禁用 Oray（向日葵）
+2. 非测试时卸载 ectest 驱动
+3. 关闭 SpeedFan 或依赖 WinRing0 的软件
+4. 确认 PawnIO 来源，不需要则卸载
+5. 更新 Intel 核显、网卡、存储驱动
+6. 若仍复现：运行内存测试（memtest86）、sfc /scannow
+
+---
+
+*本记录由多次分析整理，供后续排查参考。*
--- a/BSODReport_20260224_132101.txt
+++ b/BSODReport_20260224_132101.txt
@@ -0,0 +1,116 @@
+
+========== Header ==========
+BSOD / Blue Screen Crash Report
+Generated: 2026-02-24 13:21:01
+Computer: DESKTOP-56TM6AL
+Run this AFTER reboot to collect the previous crash info.
+
+========== [Primary] BugCheck / BSOD (Event 1001, Application log) ==========
+
+  Time: 02/24/2026 13:20:52
+  Message: 故障存储段 AV_nt!ObCloseHandleTableEntry，类型 0
+事件名称: BlueScreen
+响应: 不可用
+Cab ID: bd741ccc-07d4-4962-938f-01002b2b2dd8
+
+问题签名:
+P1: 3b
+P2: c0000005
+P3: fffff8054c4f560f
+P4: ffffa4862dd36e50
+P5: 0
+P6: 10_0_19044
+P7: 0_0
+P8: 256_1
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\Windows\Minidump\022426-8421-01.dmp
+\\?\C:\Windows\TEMP\WER-10031-0.sysdata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER3DF3.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER3E13.tmp.xml
+\\?\C:\Pro
+
+  Time: 02/24/2026 13:20:22
+  Message: 故障存储段 ，类型 0
+事件名称: BlueScreen
+响应: 不可用
+Cab ID: 0
+
+问题签名:
+P1: 3b
+P2: c0000005
+P3: fffff8054c4f560f
+P4: ffffa4862dd36e50
+P5: 0
+P6: 10_0_19044
+P7: 0_0
+P8: 256_1
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\Windows\Minidump\022426-8421-01.dmp
+\\?\C:\Windows\TEMP\WER-10031-0.sysdata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER3DF3.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER3E13.tmp.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER3E22.tmp.csv
+\\?\C:\Prog
+
+  Time: 02/24/2026 13:20:22
+  Message: 故障存储段 ，类型 0
+事件名称: BlueScreen
+响应: 不可用
+Cab ID: 0
+
+问题签名:
+P1: 3b
+P2: c0000005
+P3: fffff8054c4f560f
+P4: ffffa4862dd36e50
+P5: 0
+P6: 10_0_19044
+P7: 0_0
+P8: 256_1
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\Windows\Minidump\022426-8421-01.dmp
+\\?\C:\Windows\TEMP\WER-10031-0.sysdata.xml
+\\?\C:\Windows\MEMORY.DMP
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER3DF3.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER3E13.tmp.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\W
+
+
+========== [Important] Unclean shutdown (Kernel-Power Event 41) ==========
+
+  Time: 02/24/2026 13:20:09
+  BugcheckCode: 0x0000003B (SYSTEM_SERVICE_EXCEPTION)
+
+  Time: 02/22/2026 22:42:33
+
+  Time: 02/22/2026 21:22:54
+
+
+========== Unexpected shutdown (Event 6008) ==========
+
+  Previous shutdown: 02/24/2026 13:20:15
+  Previous shutdown: 02/22/2026 22:42:38
+  Previous shutdown: 02/22/2026 21:22:59
+
+========== Minidump files (C:\Windows\Minidump\) ==========
+
+  No .dmp files (ensure small memory dump is enabled)
+
+========== Full memory dump (C:\Windows\MEMORY.DMP) ==========
+
+  Not present (or full dump disabled)
+
+========== If no dumps appear ==========
+
+  Enable small memory dump: System Properties > Advanced > Startup and Recovery > Settings
+  Set 'Write debugging information' to 'Small memory dump (256 KB)'
+  Dump file: %SystemRoot%\Minidump
--- a/BSODReport_20260307_071348.txt
+++ b/BSODReport_20260307_071348.txt
@@ -0,0 +1,352 @@
+
+========== Header ==========
+BSOD / Blue Screen Crash Report
+Generated: 2026-03-07 07:13:48
+Computer: DESKTOP-56TM6AL
+Run this AFTER reboot to collect the previous crash info.
+
+========== [Primary] BugCheck / BSOD (Event 1001, Application log) ==========
+
+  Time: 03/06/2026 23:34:35
+  Message: 故障存储段 AV_nt!IoSetIoCompletionEx2，类型 0
+事件名称: BlueScreen
+响应: 不可用
+Cab ID: e42ddf8a-5b6e-42a6-a861-4283c4a67105
+
+问题签名:
+P1: 3b
+P2: c0000005
+P3: fffff80306e46280
+P4: fffffc03b3a56c50
+P5: 0
+P6: 10_0_19044
+P7: 0_0
+P8: 256_1
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\Windows\Minidump\030626-9453-01.dmp
+\\?\C:\Windows\TEMP\WER-10484-0.sysdata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER48D0.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER4900.tmp.xml
+\\?\C:\Progra
+
+  Time: 03/06/2026 23:34:18
+  Message: 故障存储段 ，类型 0
+事件名称: BlueScreen
+响应: 不可用
+Cab ID: 0
+
+问题签名:
+P1: 3b
+P2: c0000005
+P3: fffff80306e46280
+P4: fffffc03b3a56c50
+P5: 0
+P6: 10_0_19044
+P7: 0_0
+P8: 256_1
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\Windows\Minidump\030626-9453-01.dmp
+\\?\C:\Windows\TEMP\WER-10484-0.sysdata.xml
+\\?\C:\Windows\MEMORY.DMP
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER48D0.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER4900.tmp.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\W
+
+  Time: 03/06/2026 20:12:17
+  Message: 故障存储段 ，类型 0
+事件名称: AppHangB1
+响应: 不可用
+Cab ID: 0
+
+问题签名:
+P1: WinSCP.exe
+P2: 6.5.5.16453
+P3: 00000000
+P4: 761f
+P5: 134479872
+P6: 
+P7: 
+P8: 
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERBDF8.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERBE08.tmp.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERBE17.tmp.csv
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERBE27.tmp.txt
+\\?\C:\Users\Jack\AppData\Local\Temp\WERDAE8.tmp.appcompa
+
+  Time: 02/28/2026 09:37:10
+  Message: 故障存储段 1225333938895312182，类型 5
+事件名称: RADAR_PRE_LEAK_64
+响应: 不可用
+Cab ID: 0
+
+问题签名:
+P1: msedge.exe
+P2: 145.0.3800.70
+P3: 10.0.19044.2.0.0
+P4: 
+P5: 
+P6: 
+P7: 
+P8: 
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\Users\Jack\AppData\Local\Temp\RDR1618.tmp\empty.txt
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER1629.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER1649.tmp.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER1666.tmp.csv
+\\?\C:\ProgramData\Microsoft\Windows
+
+  Time: 02/27/2026 16:03:33
+  Message: 故障存储段 AV_nt!MiGetVadWakeList，类型 0
+事件名称: BlueScreen
+响应: 不可用
+Cab ID: 378b0e8c-2a74-44a8-a518-063ded491870
+
+问题签名:
+P1: 3b
+P2: c0000005
+P3: fffff80753918091
+P4: fffff807570bf920
+P5: 0
+P6: 10_0_19044
+P7: 0_0
+P8: 256_1
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\Windows\Minidump\022726-9906-01.dmp
+\\?\C:\Windows\TEMP\WER-12546-0.sysdata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER45B3.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER45D4.tmp.xml
+\\?\C:\ProgramDat
+
+  Time: 02/27/2026 16:03:23
+  Message: 故障存储段 ，类型 0
+事件名称: BlueScreen
+响应: 不可用
+Cab ID: 0
+
+问题签名:
+P1: 3b
+P2: c0000005
+P3: fffff80753918091
+P4: fffff807570bf920
+P5: 0
+P6: 10_0_19044
+P7: 0_0
+P8: 256_1
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\Windows\Minidump\022726-9906-01.dmp
+\\?\C:\Windows\TEMP\WER-12546-0.sysdata.xml
+\\?\C:\Windows\MEMORY.DMP
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER45B3.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER45D4.tmp.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\W
+
+  Time: 02/27/2026 14:57:45
+  Message: 故障存储段 1815152971354433799，类型 5
+事件名称: RADAR_PRE_LEAK_64
+响应: 不可用
+Cab ID: 0
+
+问题签名:
+P1: etcher-util.exe
+P2: 20.11.1.0
+P3: 10.0.19044.2.0.0
+P4: 
+P5: 
+P6: 
+P7: 
+P8: 
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\Users\Jack\AppData\Local\Temp\RDRE40.tmp\empty.txt
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERE50.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERE71.tmp.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERE8E.tmp.csv
+\\?\C:\ProgramData\Microsoft\Windows\WE
+
+  Time: 02/27/2026 07:35:53
+  Message: 故障存储段 1900496036625527385，类型 5
+事件名称: ScriptedDiagFailure
+响应: 不可用
+Cab ID: 0
+
+问题签名:
+P1: Microsoft Corporation.AudioPlaybackDiagnostic.4.5
+P2: Default
+P3: 1.0.0.0
+P4: Default
+P5: 
+P6: 
+P7: 
+P8: 
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\Users\Jack\AppData\Local\Temp\msdtadmin\_C32E0969-56EB-4165-AF74-12BA36B84B6D_\PkgBC9A.cab
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERBD47.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERBD67.tmp.xml
+\\?\C:\ProgramData\Microsof
+
+  Time: 02/27/2026 07:35:51
+  Message: 故障存储段 ，类型 0
+事件名称: ScriptedDiagFailure
+响应: 不可用
+Cab ID: 0
+
+问题签名:
+P1: Microsoft Corporation.AudioPlaybackDiagnostic.4.5
+P2: Default
+P3: 1.0.0.0
+P4: Default
+P5: 
+P6: 
+P7: 
+P8: 
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\Users\Jack\AppData\Local\Temp\msdtadmin\_C32E0969-56EB-4165-AF74-12BA36B84B6D_\PkgBC9A.cab
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERBD47.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERBD67.tmp.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\
+
+  Time: 02/24/2026 13:20:52
+  Message: 故障存储段 AV_nt!ObCloseHandleTableEntry，类型 0
+事件名称: BlueScreen
+响应: 不可用
+Cab ID: bd741ccc-07d4-4962-938f-01002b2b2dd8
+
+问题签名:
+P1: 3b
+P2: c0000005
+P3: fffff8054c4f560f
+P4: ffffa4862dd36e50
+P5: 0
+P6: 10_0_19044
+P7: 0_0
+P8: 256_1
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\Windows\Minidump\022426-8421-01.dmp
+\\?\C:\Windows\TEMP\WER-10031-0.sysdata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER3DF3.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER3E13.tmp.xml
+\\?\C:\Pro
+
+  Time: 02/24/2026 13:20:22
+  Message: 故障存储段 ，类型 0
+事件名称: BlueScreen
+响应: 不可用
+Cab ID: 0
+
+问题签名:
+P1: 3b
+P2: c0000005
+P3: fffff8054c4f560f
+P4: ffffa4862dd36e50
+P5: 0
+P6: 10_0_19044
+P7: 0_0
+P8: 256_1
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\Windows\Minidump\022426-8421-01.dmp
+\\?\C:\Windows\TEMP\WER-10031-0.sysdata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER3DF3.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER3E13.tmp.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER3E22.tmp.csv
+\\?\C:\Prog
+
+  Time: 02/24/2026 13:20:22
+  Message: 故障存储段 ，类型 0
+事件名称: BlueScreen
+响应: 不可用
+Cab ID: 0
+
+问题签名:
+P1: 3b
+P2: c0000005
+P3: fffff8054c4f560f
+P4: ffffa4862dd36e50
+P5: 0
+P6: 10_0_19044
+P7: 0_0
+P8: 256_1
+P9: 
+P10: 
+
+附加文件:
+\\?\C:\Windows\Minidump\022426-8421-01.dmp
+\\?\C:\Windows\TEMP\WER-10031-0.sysdata.xml
+\\?\C:\Windows\MEMORY.DMP
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER3DF3.tmp.WERInternalMetadata.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER3E13.tmp.xml
+\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\W
+
+
+========== [Important] Unclean shutdown (Kernel-Power Event 41) ==========
+
+  Time: 03/06/2026 23:34:04
+  BugcheckCode: 0x0000003B (SYSTEM_SERVICE_EXCEPTION)
+
+  Time: 03/01/2026 08:23:03
+
+  Time: 02/27/2026 16:03:10
+  BugcheckCode: 0x0000003B (SYSTEM_SERVICE_EXCEPTION)
+
+  Time: 02/24/2026 13:20:09
+  BugcheckCode: 0x0000003B (SYSTEM_SERVICE_EXCEPTION)
+
+  Time: 02/22/2026 22:42:33
+
+  Time: 02/22/2026 21:22:54
+
+
+========== Unexpected shutdown (Event 6008) ==========
+
+  Previous shutdown: 03/06/2026 23:34:09
+  Previous shutdown: 03/01/2026 08:23:08
+  Previous shutdown: 02/27/2026 16:03:15
+  Previous shutdown: 02/24/2026 13:20:15
+  Previous shutdown: 02/22/2026 22:42:38
+  Previous shutdown: 02/22/2026 21:22:59
+
+========== Minidump files (C:\Windows\Minidump\) ==========
+
+  030626-9453-01.dmp  |  03/06/2026 23:34:09  |  1438.9 KB
+
+========== Full memory dump (C:\Windows\MEMORY.DMP) ==========
+
+  Not present (or full dump disabled)
+
+========== If no dumps appear ==========
+
+  Enable small memory dump: System Properties > Advanced > Startup and Recovery > Settings
+  Set 'Write debugging information' to 'Small memory dump (256 KB)'
+  Dump file: %SystemRoot%\Minidump
--- a/EC与热区控制说明.md
+++ b/EC与热区控制说明.md
@@ -0,0 +1,158 @@
+# EC 与 ACPI 热区温度控制说明
+
+## 一、架构概览
+
+```
+┌─────────────────────────────────────────────────────────────────┐
+│  Windows / WMI                                                   │
+│  MSAcpi_ThermalZoneTemperature (你的机器上 WMI 返回"不支持")      │
+└────────────────────────────┬────────────────────────────────────┘
+                             │ 调用 _TMP
+┌────────────────────────────▼────────────────────────────────────┐
+│  ACPI 表 (DSDT/SSDT) —— 由 Coreboot 固件生成                     │
+│  定义 Thermal Zone、_TMP 方法、_CRT 临界值等                      │
+└────────────────────────────┬────────────────────────────────────┘
+                             │ EC Operation Region 读温度
+┌────────────────────────────▼────────────────────────────────────┐
+│  Chrome EC 固件 (Nuvoton NPCx)                                   │
+│  读取热敏电阻/热二极管 → 返回温度                                 │
+│  ectool temps 0 可读 "Core"（主板热敏电阻，非 CPU 包温）              │
+└─────────────────────────────────────────────────────────────────┘
+```
+
+---
+
+## 二、各组件职责
+
+| 组件 | 职责 | 当前状态 |
+|------|------|----------|
+| **Coreboot** | 生成 ACPI 表，定义热区及 _TMP | Chromebook ACPI 可能未为 Windows 暴露完整 thermal zone |
+| **EC 固件** | 读传感器、控制风扇、响应主机查询 | 正常，ectool 可读 Core 温度 |
+| **Windows ACPI 驱动** | 执行 _TMP，暴露 WMI | WMI 热区查询失败（"不支持"） |
+| **Event 86 触发** | ACPI 热区超过 _CRT → 关机 | 热区由 ACPI 定义，但读取路径可能不完整 |
+
+---
+
+## 三、EC 能做什么（当前）
+
+- **读温度**：`ectool temps 0` → Core 传感器（主板热敏电阻，非 CPU 包温）
+- **读风扇转速**：`ectool pwmgetfanrpm all`
+- **读/设 PWM 占空比**：`ectool pwmgetduty 0`、`ectool pwmsetduty`
+- **自动风扇控制**：`ectool autofanctrl on/off`（Windows 下需手动启用）
+
+---
+
+## 四、如何获取 CPU 温度（Chromebox / Windows）
+
+EC 的 Core 传感器是主板热敏电阻，非 CPU 包温。要在 Windows 下读取 CPU 温度，可用以下方式：
+
+### 4.1 LibreHardwareMonitor（推荐，支持脚本）
+
+LibreHardwareMonitor 通过 MSR/驱动读取 Intel CPU 包温，运行后向 WMI 暴露 `root\LibreHardwareMonitor`。
+
+**步骤：**
+
+1. 下载：<https://github.com/LibreHardwareMonitor/LibreHardwareMonitor/releases>  
+   或 `winget install LibreHardwareMonitor.LibreHardwareMonitor`
+2. 以**管理员**运行 LibreHardwareMonitor.exe（部分传感器需管理员）
+3. 保持程序运行（可最小化到托盘）
+4. 用 PowerShell 查询 CPU 温度（Intel）：
+
+```powershell
+# 查询 CPU 温度传感器（需 LibreHardwareMonitor 正在运行）
+Get-CimInstance -Namespace "root\LibreHardwareMonitor" -ClassName Sensor | 
+  Where-Object { $_.SensorType -eq 'Temperature' -and $_.Parent -like '/intelcpu/*' } | 
+  Select-Object Name, Parent, Value
+```
+
+- Intel CPU 的 Parent 一般为 `/intelcpu/0`
+- 若无数据，可先 `Get-CimInstance -Namespace "root\LibreHardwareMonitor" -ClassName Sensor` 查看所有传感器及 Parent，再筛选
+
+### 4.2 第三方工具（不用脚本）
+
+| 工具 | 说明 |
+|------|------|
+| **Core Temp** | 轻量，显示 CPU 包温及各核温度 |
+| **HWiNFO** | 全硬件监控，可导出 CSV |
+| **Open Hardware Monitor** | LibreHardwareMonitor 的前身，功能类似 |
+
+### 4.3 EC 能否直接读 CPU 温度？
+
+EC 只能读硬件已接好的传感器：热敏电阻、热二极管、或 PECI 等。  
+若主板未把 CPU 包温接到 EC，EC 固件无法新增该能力；若有 PECI 等接口但未启用，需改 EC 固件。
+
+Chromebox 的 EC 通常只负责主板热敏电阻（如 Core），CPU 包温一般由 CPU 内部寄存器（MSR）提供，需 LibreHardwareMonitor、Core Temp 等工具通过驱动/MSR 读取。
+
+---
+
+## 五、未来如何用 EC 更好控制温度
+
+### 5.1 固件层面（需改 Coreboot）
+
+要让 Windows WMI 能读到 ACPI 热区温度，需要在 **Coreboot** 中：
+
+1. 在 DSDT/SSDT 里定义 Thermal Zone
+2. 实现 _TMP 方法，通过 EC Operation Region 向 Chrome EC 读取温度
+3. 确保 ACPI 热区与 Windows WMI 兼容
+
+这是较底层的改动，需重新编译、刷写 Coreboot，风险较高。
+
+---
+
+### 5.2 用户态层面（不改固件）
+
+在现有 EC 能力下，可以做：
+
+| 手段 | 说明 |
+|------|------|
+| **定期 ectool 监控** | 用 `MonitorThermalZones.ps1` 或 `ectool监控温度风扇.ps1` 持续观察 Core 温度 |
+| **开启自动风扇** | 在 Windows 启动后执行 `ectool autofanctrl on`，让 EC 根据内置策略自动调速 |
+| **手动 PWM 调扇** | 高负载时用 `ectool pwmsetduty 0 <value>` 提高转速（0–65535 对应 0–100%） |
+| **任务计划自动化** | 创建计划任务，登录/开机后自动执行 `autofanctrl on` 和/或监控脚本 |
+
+---
+
+### 5.3 若可改 EC 固件（高级）
+
+若有机会修改 Chrome EC 固件（如 MrChromebox 等方案支持部分机型）：
+
+1. **调整温控策略**：修改 fan_off / fan_max 对应温度阈值
+2. **增加传感器暴露**：若有未用 ADC，可接入更多热敏电阻并暴露给主机
+3. **更激进的转速曲线**：提前提高转速，降低进入过热关机的概率
+
+---
+
+### 5.4 综合建议（不改固件）
+
+1. **开机后启用自动风扇**  
+   - 手动：`ectool autofanctrl on`  
+   - 或写一个登录脚本 / 计划任务自动执行
+
+2. **高负载时监控温度**  
+   - 运行 `ectool监控温度风扇.ps1` 或 `MonitorThermalZones.ps1`  
+   - Core 超过 85°C 时考虑降负载或手动提高风扇
+
+3. **避免 Event 86 过热关机**  
+   - ectool Core（主板热敏电阻）可作散热趋势参考  
+   - 建议用 LibreHardwareMonitor 等工具监控 CPU 包温，若经常 >90°C 需改善散热
+
+---
+
+## 六、相关脚本
+
+| 脚本 | 用途 |
+|------|------|
+| `MonitorThermalZones.ps1` | 监控 ACPI 热区 + ectool，WMI 不可用时仍显示 EC Core 温度 |
+| `ectool监控温度风扇.ps1` | 持续显示 ectool temps、风扇 RPM、PWM 占空比 |
+| `查看系统温度.ps1` | 单次 WMI 热区温度快照 |
+| `GetCpuTemp.ps1` | 通过 LibreHardwareMonitor WMI 读取 CPU 包温（需 LibreHardwareMonitor 运行中） |
+| `chromeos_collect_sensors.sh` | Chrome OS 下收集 EC/热区/hwmon/dmesg 传感器信息 |
+| `linux_collect_sensors.sh` | Linux 下收集热区/hwmon/lm-sensors/ectool/dmesg 传感器信息 |
+
+---
+
+## 七、参考资料
+
+- ACPI Thermal Zone: ACPI Spec 11.3 Thermal Zones
+- Chrome EC: Chromium OS EC 文档
+- ectool: `ectool命令中文说明.txt`、`ectool在Windows下使用说明.txt`
--- a/FST_watch_20260224_191702.csv
+++ b/FST_watch_20260224_191702.csv
@@ -0,0 +1,207 @@
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--- a/FST_watch_20260224_193313.csv
+++ b/FST_watch_20260224_193313.csv
@@ -0,0 +1,550 @@
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--- a/GetCpuTemp.ps1
+++ b/GetCpuTemp.ps1
@@ -0,0 +1,39 @@
+# Read CPU temperature via LibreHardwareMonitor WMI.
+# Prereq: 1) Install LibreHardwareMonitor  2) Run it (as Admin)  3) Keep it running
+# winget install LibreHardwareMonitor.LibreHardwareMonitor
+
+param([switch]$ListAll)
+
+$ns = "root\LibreHardwareMonitor"
+$ok = $false
+try {
+    $sensors = Get-CimInstance -Namespace $ns -ClassName Sensor -ErrorAction Stop
+    $ok = $true
+} catch {
+    Write-Host "LibreHardwareMonitor WMI not available. Ensure:" -ForegroundColor Yellow
+    Write-Host "  1. LibreHardwareMonitor is installed"
+    Write-Host "  2. LibreHardwareMonitor.exe is running (can be minimized)"
+    Write-Host "  3. Run LibreHardwareMonitor as Administrator"
+    Write-Host "Error: $($_.Exception.Message)" -ForegroundColor Red
+    exit 1
+}
+
+if ($ListAll) {
+    $sensors | Where-Object { $_.SensorType -eq 'Temperature' } | Select-Object Name, Parent, Value | Format-Table -AutoSize
+    exit 0
+}
+
+# Intel CPU (adjust to /amdcpu/0 for AMD)
+$cpu = $sensors | Where-Object { $_.SensorType -eq 'Temperature' -and $_.Parent -like '/intelcpu/*' }
+if (-not $cpu) {
+    $cpu = $sensors | Where-Object { $_.SensorType -eq 'Temperature' -and $_.Parent -like '/amdcpu/*' }
+}
+if (-not $cpu) {
+    Write-Host "No CPU temperature sensor found. Try -ListAll to see available sensors." -ForegroundColor Yellow
+    exit 1
+}
+
+$cpu | ForEach-Object {
+    $c = if ($null -ne $_.Value) { [Math]::Round($_.Value, 1) } else { "N/A" }
+    Write-Host "$($_.Name): $c C  (Parent: $($_.Parent))"
+}
--- a/MonitorThermalZones.ps1
+++ b/MonitorThermalZones.ps1
@@ -0,0 +1,81 @@
+# Monitor ACPI Thermal Zones (source of Event 86 "critical thermal event")
+# Also optional ectool temps. Run as Admin for best WMI access. Ctrl+C quit.
+
+param(
+    [int]$IntervalSeconds = 5,
+    [int]$WarnThresholdC  = 85,
+    [switch]$NoEctool
+)
+
+$EctoolPath = "C:\Program Files\crosec\ectool.exe"
+$HasEctool  = (Test-Path $EctoolPath) -and (-not $NoEctool)
+
+Write-Host "Thermal Zone Monitor (every ${IntervalSeconds}s, Ctrl+C quit)" -ForegroundColor Green
+Write-Host "Warn threshold: ${WarnThresholdC}C | ectool: $(if($HasEctool){'enabled'}else{'disabled'})"
+Write-Host ""
+
+function Get-ThermalZoneTemps {
+    try {
+        $zones = Get-CimInstance -Namespace "root/wmi" -ClassName MSAcpi_ThermalZoneTemperature -ErrorAction Stop
+        if (-not $zones -or $zones.Count -eq 0) { return $null }
+        $out = @()
+        $idx = 0
+        foreach ($z in $zones) {
+            $idx++
+            $kelvin10 = $z.CurrentTemperature
+            if ($null -eq $kelvin10 -or $kelvin10 -eq 0) {
+                $out += [PSCustomObject]@{ Index = $idx; TempC = $null; Raw = $kelvin10 }
+                continue
+            }
+            $celsius = ($kelvin10 / 10.0) - 273.15
+            $out += [PSCustomObject]@{ Index = $idx; TempC = [Math]::Round($celsius, 1); Raw = $kelvin10 }
+        }
+        return $out
+    } catch {
+        Write-Host "WMI thermal zone read failed: $($_.Exception.Message)" -ForegroundColor Red
+        return $null
+    }
+}
+
+function Show-Warning {
+    param([double]$TempC)
+    if ($null -eq $TempC) { return }
+    if ($TempC -ge $WarnThresholdC) {
+        Write-Host " *** WARNING: $TempC C >= ${WarnThresholdC}C - approaching critical thermal event ***" -ForegroundColor Red
+    }
+}
+
+try {
+    while ($true) {
+        $ts = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
+        Write-Host "--- $ts ---" -ForegroundColor Cyan
+
+        # ACPI thermal zones (these trigger Event 86 when critical)
+        $zones = Get-ThermalZoneTemps
+        if ($zones) {
+            foreach ($z in $zones) {
+                $msg = "Thermal Zone $($z.Index): "
+                if ($null -ne $z.TempC) {
+                    $msg += "$($z.TempC) C"
+                    Show-Warning -TempC $z.TempC
+                } else {
+                    $msg += "N/A (raw $($z.Raw))"
+                }
+                Write-Host $msg
+            }
+        } else {
+            Write-Host "ACPI Thermal Zones: Not available (BIOS/driver may not expose WMI)." -ForegroundColor DarkYellow
+        }
+
+        # Chrome EC sensor (if present)
+        if ($HasEctool) {
+            Write-Host "EC sensor (ectool temps 0):" -ForegroundColor DarkGray
+            & $EctoolPath temps 0
+        }
+
+        Write-Host ""
+        Start-Sleep -Seconds $IntervalSeconds
+    }
+} finally {
+    Write-Host "Monitor stopped." -ForegroundColor Cyan
+}
--- a/Monitor_DPTF_Fan.ps1
+++ b/Monitor_DPTF_Fan.ps1
@@ -0,0 +1,226 @@
+# Monitor whether DPTF/INT3404 sends fan control: ETW trace + high-frequency _FST poll.
+# Run as Administrator. Needs ectest (ec-test-app) for _FST polling.
+# -Mode watch: poll _FST, print only when FAND *changes* (INT3404 sends _FSL => FAND changes).
+
+param(
+    [ValidateSet("check", "poll", "watch", "etw", "all")]
+    [string]$Mode = "check",
+    [string]$EctestPath = "C:\Users\Jack\ec-test-app\exe\x64\Release\ectest.exe",
+    [int]$PollSeconds = 60,
+    [double]$PollIntervalMs = 200,
+    [string]$LogDir = $PSScriptRoot
+)
+
+$ErrorActionPreference = "Stop"
+
+# ---- 1) Check DPTF presence ----
+function Get-DptfPresence {
+    Write-Host "=== DPTF / thermal stack check ===" -ForegroundColor Cyan
+    $svc = Get-Service -ErrorAction SilentlyContinue | Where-Object { $_.Name -match "dptf|esif|intel.*thermal|dynamic.*thermal" }
+    if ($svc) {
+        $svc | Format-Table Name, Status, DisplayName -AutoSize
+    } else {
+        Write-Host "No DPTF/ESIF/thermal service found by name." -ForegroundColor Yellow
+    }
+    $drv = Get-WmiObject Win32_PnPSignedDriver -ErrorAction SilentlyContinue | Where-Object { $_.DeviceName -match "DPTF|Dynamic Platform|Intel.*Thermal|ESIF" }
+    if ($drv) {
+        $drv | Select-Object DeviceName, DriverVersion | Format-Table -AutoSize
+    } else {
+        Write-Host "No DPTF/thermal driver found by name." -ForegroundColor Yellow
+    }
+    $acpiByClass = Get-PnpDevice -Class ACPI -ErrorAction SilentlyContinue | Where-Object { $_.FriendlyName -match "INT3404|INT3400|DPTF|Thermal|Dynamic Tuning|Fan Participant" }
+    $acpiById   = Get-PnpDevice -ErrorAction SilentlyContinue | Where-Object { $_.InstanceId -match "ACPI\\INT340[04]" }
+    $acpi = @($acpiByClass) + @($acpiById) | Sort-Object -Property InstanceId -Unique
+    if ($acpi) {
+        Write-Host "ACPI devices (DPTF/thermal/fan, INT3404/INT3400):" -ForegroundColor Green
+        $acpi | Select-Object Class, Status, FriendlyName, InstanceId | Format-Table -AutoSize
+    } else {
+        Write-Host "No DPTF-related ACPI device (INT3404/INT3400) found." -ForegroundColor Yellow
+        Write-Host "  -> INT3404 = DPTF fan device (_FSL); INT3400 = thermal. Without these, Windows/DPTF cannot send fan control." -ForegroundColor DarkGray
+    }
+    $any = Get-PnpDevice -ErrorAction SilentlyContinue | Where-Object { $_.FriendlyName -match "Dynamic Tuning|Fan Participant" }
+    if ($any -and -not $acpi) {
+        Write-Host "Dynamic Tuning devices (any class):" -ForegroundColor Cyan
+        $any | Select-Object Class, Status, FriendlyName | Format-Table -AutoSize
+        Write-Host "  -> Check device Details for 'Device instance path'; if ACPI\INT3404\0, the fan device is present but was missed by class filter." -ForegroundColor DarkGray
+    }
+    Write-Host ""
+
+    # Power / thermal (DPTF may be gated by power plan or OEM settings)
+    Write-Host "=== Power / thermal (for DPTF fan control) ===" -ForegroundColor Cyan
+    try {
+        $active = powercfg /getactivescheme
+        if ($active) {
+            Write-Host "Active power scheme:" -ForegroundColor Green
+            $active
+        }
+    } catch {}
+    Write-Host "Manual check:" -ForegroundColor Yellow
+    Write-Host "  1. Settings -> System -> Power -> Power mode / Additional power settings" -ForegroundColor DarkGray
+    Write-Host "  2. Control Panel -> Power Options -> Change plan settings -> Change advanced power settings" -ForegroundColor DarkGray
+    Write-Host "     Look for: Processor power, Intel, Thermal, or OEM (e.g. Acer) thermal/fan." -ForegroundColor DarkGray
+    Write-Host "  3. Device Manager -> Intel Dynamic Tuning Fan Participant -> Properties -> Driver: ensure enabled, no errors." -ForegroundColor DarkGray
+    Write-Host "  4. OEM app (e.g. Acer Care, Lenovo Vantage): turn OFF any 'quiet/silent fan' or 'disable DPTF'." -ForegroundColor DarkGray
+    Write-Host ""
+}
+
+# ---- 2) High-frequency _FST poll and log ----
+function Start-FstPollLog {
+    if (-not (Test-Path $EctestPath)) {
+        Write-Host "ectest not found: $EctestPath" -ForegroundColor Red
+        return
+    }
+    $ts = Get-Date -Format "yyyyMMdd_HHmmss"
+    $csvPath = Join-Path $LogDir "FST_poll_$ts.csv"
+    $end = [DateTime]::UtcNow.AddSeconds($PollSeconds)
+    Write-Host "Polling _FST every $PollIntervalMs ms for $PollSeconds s. Log: $csvPath" -ForegroundColor Cyan
+    Write-Host "Apply CPU load (e.g. stress) to see if FAND changes. Ctrl+C to stop early." -ForegroundColor Yellow
+    $headers = "TimeUtc,ElapsedMs,FAND"
+    $headers | Set-Content $csvPath -Encoding UTF8
+    $t0 = [DateTime]::UtcNow
+    $lastFand = $null
+    $changeCount = 0
+    while ([DateTime]::UtcNow -lt $end) {
+        $out = & $EctestPath -acpi "\_SB.ECT0._FST" 2>$null
+        $fand = $null
+        $capture = $false
+        foreach ($line in ($out -split "`n")) {
+            if ($line -match 'Argument\[1\]:') { $capture = $true; continue }
+            if ($capture -and $line -match 'Integer Value:\s*(0x[0-9A-Fa-f]+|\d+)') {
+                $fand = $Matches[1]
+                break
+            }
+        }
+        $elapsed = ([DateTime]::UtcNow - $t0).TotalMilliseconds
+        $val = if ($fand) { $fand } else { "N/A" }
+        $line = "{0:O},{1:F0},{2}" -f [DateTime]::UtcNow, $elapsed, $val
+        Add-Content $csvPath $line -Encoding UTF8
+        if ($null -ne $lastFand -and $fand -ne $lastFand) { $changeCount++ }
+        $lastFand = $fand
+        [System.Threading.Thread]::Sleep([int]$PollIntervalMs)
+    }
+    Write-Host "Done. FAND changed $changeCount times. Log: $csvPath" -ForegroundColor Green
+}
+
+# ---- 2b) Watch FAND: print only when value changes (see if INT3404 sends _FSL) ----
+function Start-FstWatch {
+    if (-not (Test-Path $EctestPath)) {
+        Write-Host "ectest not found: $EctestPath" -ForegroundColor Red
+        return
+    }
+    $ts = Get-Date -Format "yyyyMMdd_HHmmss"
+    $csvPath = Join-Path $LogDir "FST_watch_$ts.csv"
+    $end = [DateTime]::UtcNow.AddSeconds($PollSeconds)
+    Write-Host "=== INT3404 / FAND watch (FAND change = something wrote _FSL) ===" -ForegroundColor Cyan
+    Write-Host "Polling _FST every $PollIntervalMs ms for $PollSeconds s. Log: $csvPath" -ForegroundColor Cyan
+    Write-Host "Apply CPU load; if you see 'FAND changed' below, INT3404 or host wrote _FSL." -ForegroundColor Yellow
+    Write-Host ""
+    "TimeUtc,ElapsedMs,FAND,Changed" | Set-Content $csvPath -Encoding UTF8
+    $t0 = [DateTime]::UtcNow
+    $lastFand = $null
+    $changeCount = 0
+    while ([DateTime]::UtcNow -lt $end) {
+        $out = & $EctestPath -acpi "\_SB.ECT0._FST" 2>$null
+        $fand = $null
+        $capture = $false
+        foreach ($line in ($out -split "`n")) {
+            if ($line -match 'Argument\[1\]:') { $capture = $true; continue }
+            if ($capture -and $line -match 'Integer Value:\s*(0x[0-9A-Fa-f]+|\d+)') {
+                $fand = $Matches[1]
+                break
+            }
+        }
+        $val = if ($fand) { $fand } else { "N/A" }
+        $elapsed = ([DateTime]::UtcNow - $t0).TotalMilliseconds
+        $changed = $false
+        if ($null -ne $lastFand -and $fand -ne $lastFand) {
+            $changeCount++
+            $changed = $true
+            Write-Host ("  {0}  FAND changed: {1} -> {2}" -f (Get-Date -Format "HH:mm:ss"), $lastFand, $val) -ForegroundColor Green
+        }
+        $flag = if ($changed) { "1" } else { "0" }
+        $line = "{0:O},{1:F0},{2},{3}" -f [DateTime]::UtcNow, $elapsed, $val, $flag
+        Add-Content $csvPath $line -Encoding UTF8
+        $lastFand = $fand
+        [System.Threading.Thread]::Sleep([int]$PollIntervalMs)
+    }
+    Write-Host ""
+    if ($changeCount -eq 0) {
+        Write-Host "FAND never changed => INT3404 did not send _FSL (or EC overwrote)." -ForegroundColor Yellow
+    } else {
+        Write-Host "FAND changed $changeCount times => fan control was written (e.g. by INT3404)." -ForegroundColor Green
+    }
+    Write-Host "Log: $csvPath" -ForegroundColor Cyan
+}
+
+# ---- 3) ETW trace (DPTF / ESIF) ----
+function Start-DptfEtwTrace {
+    $isAdmin = ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)
+    if (-not $isAdmin) {
+        Write-Host "ETW mode requires Administrator. Right-click PowerShell -> Run as administrator, then run again." -ForegroundColor Red
+        return
+    }
+    $ts = Get-Date -Format "yyyyMMdd_HHmmss"
+    $etlPath = Join-Path $LogDir "DPTF_trace_$ts.etl"
+    $sessionName = "DptfMonitorSession"
+    # Remove if leftover (suppress "data collector set not found" and "access denied" when not admin)
+    $null = cmd /c "logman stop $sessionName 2>nul"
+    $null = cmd /c "logman delete $sessionName 2>nul"
+    # Prefer ESIF low-level (often present when DPTF is installed)
+    $providers = @(
+        @{ N = "EsifLfEtwProvider"; K = "0x200000"; L = 5 },
+        @{ N = "EsifUmdf2EtwProvider"; K = "0xFFFFFFFF"; L = 5 }
+    )
+    $added = $false
+    foreach ($p in $providers) {
+        $err = & { logman create trace $sessionName -p $p.N $p.K $p.L -o $etlPath -ets 2>&1 }
+        if ($LASTEXITCODE -eq 0) {
+            Write-Host "Created trace with provider: $($p.N)" -ForegroundColor Green
+            $added = $true
+            break
+        }
+    }
+    if (-not $added) {
+        Write-Host "Could not create trace. Possible causes:" -ForegroundColor Red
+        Write-Host "  - Not running as Administrator (required for ETW)." -ForegroundColor DarkGray
+        Write-Host "  - DPTF ETW providers (EsifLfEtwProvider etc.) not registered on this build." -ForegroundColor DarkGray
+        Write-Host "You can still use -Mode watch to see if FAND changes." -ForegroundColor Yellow
+        return
+    }
+    logman start $sessionName -ets
+    Write-Host "ETW trace started. Run CPU stress for 1-2 min, then press Enter to stop..." -ForegroundColor Yellow
+    Read-Host
+    logman stop $sessionName -ets
+    $csvOut = $etlPath -replace '\.etl$', '.csv'
+    tracerpt $etlPath -o $csvOut -of CSV 2>$null
+    if (Test-Path $csvOut) {
+        Write-Host "Trace summary: $csvOut" -ForegroundColor Green
+    }
+    Write-Host "Raw ETL: $etlPath" -ForegroundColor Cyan
+    logman delete $sessionName -ets 2>$null
+}
+
+# ---- Main ----
+switch ($Mode) {
+    "check" {
+        Get-DptfPresence
+    }
+    "poll" {
+        Get-DptfPresence
+        Start-FstPollLog
+    }
+    "watch" {
+        Get-DptfPresence
+        Start-FstWatch
+    }
+    "etw" {
+        Get-DptfPresence
+        Start-DptfEtwTrace
+    }
+    "all" {
+        Get-DptfPresence
+        Start-DptfEtwTrace
+        Write-Host "Now polling _FST for $PollSeconds s..." -ForegroundColor Cyan
+        Start-FstPollLog
+    }
+}
--- a/README.md
+++ b/README.md
--- a/ShutdownReport_20260224_132114.txt
+++ b/ShutdownReport_20260224_132114.txt
@@ -0,0 +1,148 @@
+
+========== Header ==========
+Shutdown Analysis Report
+Generated: 2026-02-24 13:21:14
+Computer: DESKTOP-56TM6AL
+User: Jack
+
+========== System Info ==========
+
+OS: Microsoft Windows 10 企业版 LTSC (Version 10.0.19044)
+Last boot: 02/24/2026 13:20:03
+Uptime: 00:01:11.0711308
+
+========== Event ID Reference ==========
+
+  Event ID 1 : Kernel-Power: Wake from sleep
+  Event ID 41 : Kernel-Power: System did not shut down cleanly (power loss/BSOD/forced)
+  Event ID 42 : Kernel-Power: System entering sleep
+  Event ID 109 : Kernel-Power: Critical battery/power event
+  Event ID 1074 : User or process initiated shutdown/restart
+  Event ID 6006 : Event log service stopped (written on normal shutdown)
+  Event ID 6008 : Unexpected shutdown - previous shutdown was unexpected
+
+========== [IMPORTANT] Unexpected shutdowns (Event 6008) ==========
+
+  Time: 02/22/2026 22:42:38 | Unexpected shutdown
+  Time: 02/22/2026 21:22:59 | Unexpected shutdown
+
+========== [IMPORTANT] Unclean shutdown / power loss (Event 41) ==========
+
+  Time: 02/22/2026 22:42:33
+     BugcheckCode: 0
+  Time: 02/22/2026 21:22:54
+     BugcheckCode: 0
+
+========== Shutdown/Restart source (Event 1074) ==========
+
+  Time: 02/23/2026 17:11:45 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 关闭电源 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/22/2026 21:51:49 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 重启 |  | DESKTOP-56TM6AL\Jack
+
+========== Shutdown timeline (Event 6006) ==========
+
+  Shutdown time: 02/24/2026 13:19:58
+  Shutdown time: 02/22/2026 21:51:51
+
+========== BugCheck / BSOD (Event 1001) ==========
+
+  Read failed: 参数错误。
+
+========== Recent system errors/warnings (last 7 days) ==========
+
+  02/24/2026 13:20:29 | ID:6062 | Netwtw10 | 6062 - Lso was triggered...
+  02/24/2026 13:20:12 | ID:10016 | Microsoft-Windows-DistributedCOM | 应用程序-特定 权限设置并未向在应用程序容器 不可用 SID (不可用)中运行的地址 LocalHost (使用 LRPC) 中的用户 NT AUTHORITY\LOCAL SERVICE SID (S-1-5-19)授予针对 CLSID ...
+  02/24/2026 13:20:12 | ID:10016 | Microsoft-Windows-DistributedCOM | 应用程序-特定 权限设置并未向在应用程序容器 不可用 SID (不可用)中运行的地址 LocalHost (使用 LRPC) 中的用户 NT AUTHORITY\LOCAL SERVICE SID (S-1-5-19)授予针对 CLSID ...
+  02/24/2026 13:20:11 | ID:7023 | Service Control Manager | cphs 服务因下列错误而停止: 
+无效句柄...
+  02/24/2026 13:20:09 | ID:219 | Microsoft-Windows-Kernel-PnP | 为设备 {C5A047D8-CB5B-40E9-B9E3-316AB06B5A18}\WirelessKeyboardFilter\8&d668847&0&01 加载驱动程序 \Driver\WudfRd 失败。...
+  02/24/2026 13:20:06 | ID:219 | Microsoft-Windows-Kernel-PnP | 为设备 PCI\VEN_8086&DEV_1903&SUBSYS_19038086&REV_0C\3&11583659&0&20 加载驱动程序 \Driver\WudfRd 失败。...
+  02/24/2026 13:19:59 | ID:10002 | Microsoft-Windows-WLAN-AutoConfig | WLAN 扩展模块已停止。
+
+模块路径: C:\Windows\system32\IntelIHVRouter10.dll
+...
+  02/24/2026 13:19:57 | ID:86 | Microsoft-Windows-Kernel-Power | 由于严重的热事件，系统已关闭。             
+关闭时间 = ‎2026‎-‎02‎-‎24T05:19:57.171618600Z             
+高级配置和电源接口热区域 = Intel(R) Dynamic T...
+  02/24/2026 13:17:41 | ID:10016 | Microsoft-Windows-DistributedCOM | 计算机-默认 权限设置并未向在应用程序容器 Microsoft.Windows.ShellExperienceHost_10.0.19041.5072_neutral_neutral_cw5n1h2txyewy SID (S-1-15-2-...
+  02/24/2026 13:09:02 | ID:52 | Microsoft-Windows-Time-Service | 时间服务已经设置了时间，调整的误差为 71667 秒。...
+  02/23/2026 17:13:56 | ID:10016 | Microsoft-Windows-DistributedCOM | 应用程序-特定 权限设置并未向在应用程序容器 不可用 SID (不可用)中运行的地址 LocalHost (使用 LRPC) 中的用户 DESKTOP-56TM6AL\Jack SID (S-1-5-21-416625002-2622268...
+  02/23/2026 17:13:34 | ID:34 | Microsoft-Windows-Time-Service | 时间服务检测到系统时间需要更改 71668 秒。时间服务将不会更改系统时间超过 54000 秒。请验证你的时间和时区是正确的，并且时间源 time.windows.com,0x9 (ntp.m|0x9|0.0.0.0:123->52.148...
+  02/23/2026 17:13:33 | ID:34 | Microsoft-Windows-Time-Service | 时间服务检测到系统时间需要更改 71668 秒。时间服务将不会更改系统时间超过 54000 秒。请验证你的时间和时区是正确的，并且时间源 time.windows.com,0x9 (ntp.m|0x9|0.0.0.0:123->52.148...
+  02/23/2026 17:13:32 | ID:34 | Microsoft-Windows-Time-Service | 时间服务检测到系统时间需要更改 71668 秒。时间服务将不会更改系统时间超过 54000 秒。请验证你的时间和时区是正确的，并且时间源 time.windows.com,0x9 (ntp.m|0x9|0.0.0.0:123->52.148...
+  02/23/2026 17:13:30 | ID:34 | Microsoft-Windows-Time-Service | 时间服务检测到系统时间需要更改 71668 秒。时间服务将不会更改系统时间超过 54000 秒。请验证你的时间和时区是正确的，并且时间源 time.windows.com,0x9 (ntp.m|0x9|0.0.0.0:123->52.148...
+  02/23/2026 17:13:29 | ID:34 | Microsoft-Windows-Time-Service | 时间服务检测到系统时间需要更改 71668 秒。时间服务将不会更改系统时间超过 54000 秒。请验证你的时间和时区是正确的，并且时间源 time.windows.com,0x9 (ntp.m|0x9|0.0.0.0:123->52.148...
+  02/23/2026 17:13:28 | ID:34 | Microsoft-Windows-Time-Service | 时间服务检测到系统时间需要更改 71668 秒。时间服务将不会更改系统时间超过 54000 秒。请验证你的时间和时区是正确的，并且时间源 time.windows.com,0x9 (ntp.m|0x9|0.0.0.0:123->52.148...
+  02/23/2026 17:13:10 | ID:34 | Microsoft-Windows-Time-Service | 时间服务检测到系统时间需要更改 71668 秒。时间服务将不会更改系统时间超过 54000 秒。请验证你的时间和时区是正确的，并且时间源 time.windows.com,0x9 (ntp.m|0x9|0.0.0.0:123->52.148...
+  02/23/2026 17:12:53 | ID:34 | Microsoft-Windows-Time-Service | 时间服务检测到系统时间需要更改 71668 秒。时间服务将不会更改系统时间超过 54000 秒。请验证你的时间和时区是正确的，并且时间源 time.windows.com,0x9 (ntp.m|0x9|0.0.0.0:123->52.148...
+  02/23/2026 17:12:03 | ID:6062 | Netwtw10 | 6062 - Lso was triggered...
+  02/23/2026 17:11:52 | ID:10016 | Microsoft-Windows-DistributedCOM | 应用程序-特定 权限设置并未向在应用程序容器 不可用 SID (不可用)中运行的地址 LocalHost (使用 LRPC) 中的用户 NT AUTHORITY\LOCAL SERVICE SID (S-1-5-19)授予针对 CLSID ...
+  02/23/2026 17:11:52 | ID:10016 | Microsoft-Windows-DistributedCOM | 应用程序-特定 权限设置并未向在应用程序容器 不可用 SID (不可用)中运行的地址 LocalHost (使用 LRPC) 中的用户 NT AUTHORITY\LOCAL SERVICE SID (S-1-5-19)授予针对 CLSID ...
+  02/23/2026 17:11:51 | ID:7023 | Service Control Manager | Intel(R) Content Protection HECI Service 服务因下列错误而停止: 
+无效句柄...
+  02/23/2026 17:11:49 | ID:10317 | Microsoft-Windows-NDIS | 微型端口 Microsoft Wi-Fi Direct Virtual Adapter #2、{550877e3-5f25-48b4-b75a-f28f02e14925} 包含事件 Fatal error: The miniport has...
+  02/23/2026 17:11:49 | ID:7023 | Service Control Manager | Network Setup Service 服务因下列错误而停止: 
+Network Setup Service 不是有效的 Win32 应用程序。...
+  02/23/2026 16:45:00 | ID:7023 | Service Control Manager | Intel(R) Content Protection HECI Service 服务因下列错误而停止: 
+无效句柄...
+  02/23/2026 15:54:25 | ID:10016 | Microsoft-Windows-DistributedCOM | 计算机-默认 权限设置并未向在应用程序容器 Microsoft.Windows.ShellExperienceHost_10.0.19041.5072_neutral_neutral_cw5n1h2txyewy SID (S-1-15-2-...
+  02/23/2026 15:54:17 | ID:10016 | Microsoft-Windows-DistributedCOM | 计算机-默认 权限设置并未向在应用程序容器 Microsoft.Windows.ShellExperienceHost_10.0.19041.5072_neutral_neutral_cw5n1h2txyewy SID (S-1-15-2-...
+  02/23/2026 15:23:56 | ID:10016 | Microsoft-Windows-DistributedCOM | 计算机-默认 权限设置并未向在应用程序容器 Microsoft.Windows.ShellExperienceHost_10.0.19041.5072_neutral_neutral_cw5n1h2txyewy SID (S-1-15-2-...
+  02/23/2026 15:09:50 | ID:7023 | Service Control Manager | Intel(R) Content Protection HECI Service 服务因下列错误而停止: 
+无效句柄...
+
+========== Kernel-Power events ==========
+
+  02/24/2026 13:20:01 | ID:109 | 内核电源管理器已启动关机转换。
+
+关机原因: Kernel API
+  02/24/2026 13:19:57 | ID:86 | 由于严重的热事件，系统已关闭。             
+关闭时间 = ‎2026‎-‎02‎-‎24T05:19:57.171618600Z             
+高级配置和电源接口热区域 
+  02/23/2026 17:11:49 | ID:107 | 系统已从睡眠状态恢复。
+  02/23/2026 17:11:47 | ID:42 | 系统正在进入睡眠状态。
+
+睡眠原因: Application API
+  02/23/2026 17:11:46 | ID:187 | 用户模式进程尝试通过调用 SetSuspendState 或 SetSystemPowerState API 更改系统状态。
+  02/23/2026 16:45:00 | ID:507 | 系统正在退出连接待机状态 
+
+原因: Input Mouse。
+  02/23/2026 16:43:25 | ID:506 | 系统正在进入连接待机状态 
+
+原因: 50。
+  02/23/2026 16:43:25 | ID:507 | 系统正在退出连接待机状态 
+
+原因: 50。
+  02/23/2026 16:39:57 | ID:506 | 系统正在进入连接待机状态 
+
+原因: Idle Timeout。
+  02/23/2026 15:09:50 | ID:507 | 系统正在退出连接待机状态 
+
+原因: Input Mouse。
+  02/23/2026 14:49:07 | ID:506 | 系统正在进入连接待机状态 
+
+原因: Idle Timeout。
+  02/23/2026 10:27:50 | ID:507 | 系统正在退出连接待机状态 
+
+原因: Input Keyboard。
+  02/23/2026 10:25:57 | ID:506 | 系统正在进入连接待机状态 
+
+原因: 50。
+  02/23/2026 10:25:57 | ID:507 | 系统正在退出连接待机状态 
+
+原因: 50。
+  02/23/2026 10:25:56 | ID:506 | 系统正在进入连接待机状态 
+
+原因: 50。
+  02/23/2026 10:25:56 | ID:507 | 系统正在退出连接待机状态 
+
+原因: 50。
+  02/23/2026 09:25:57 | ID:506 | 系统正在进入连接待机状态 
+
+原因: 50。
+  02/23/2026 09:25:57 | ID:507 | 系统正在退出连接待机状态 
+
+原因: 50。
+  02/23/2026 08:31:53 | ID:506 | 系统正在进入连接待机状态 
+
+原因: Idle Timeout。
+  02/22/2026 22:42:33 | ID:41 | 系统已在未先正常关机的情况下重新启动。如果系统停止响应、发生崩溃或意外断电，则可能会导致此错误。
--- a/ShutdownReport_20260305_174411.txt
+++ b/ShutdownReport_20260305_174411.txt
@@ -0,0 +1,173 @@
+
+========== Header ==========
+Shutdown Analysis Report
+Generated: 2026-03-05 17:44:11
+Computer: DESKTOP-56TM6AL
+User: Jack
+
+========== System Info ==========
+
+OS: Microsoft Windows 10 企业版 LTSC (Version 10.0.19044)
+Last boot: 03/05/2026 17:42:34
+Uptime: 00:01:37.3226989
+
+========== Event ID Reference ==========
+
+  Event ID 1 : Kernel-Power: Wake from sleep
+  Event ID 41 : Kernel-Power: System did not shut down cleanly (power loss/BSOD/forced)
+  Event ID 42 : Kernel-Power: System entering sleep
+  Event ID 109 : Kernel-Power: Critical battery/power event
+  Event ID 1074 : User or process initiated shutdown/restart
+  Event ID 6006 : Event log service stopped (written on normal shutdown)
+  Event ID 6008 : Unexpected shutdown - previous shutdown was unexpected
+
+========== [IMPORTANT] Unexpected shutdowns (Event 6008) ==========
+
+  Time: 03/01/2026 08:23:08 | Unexpected shutdown
+  Time: 02/27/2026 16:03:15 | Unexpected shutdown
+  Time: 02/24/2026 13:20:15 | Unexpected shutdown
+  Time: 02/22/2026 22:42:38 | Unexpected shutdown
+  Time: 02/22/2026 21:22:59 | Unexpected shutdown
+
+========== [IMPORTANT] Unclean shutdown / power loss (Event 41) ==========
+
+  Time: 03/01/2026 08:23:03
+     BugcheckCode: 0
+  Time: 02/27/2026 16:03:10
+     BugcheckCode: 59
+  Time: 02/24/2026 13:20:09
+     BugcheckCode: 59
+  Time: 02/22/2026 22:42:33
+     BugcheckCode: 0
+  Time: 02/22/2026 21:22:54
+     BugcheckCode: 0
+
+========== Shutdown/Restart source (Event 1074) ==========
+
+  Time: 03/03/2026 17:02:29 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 关闭电源 |  | DESKTOP-56TM6AL\Jack
+  Time: 03/02/2026 06:47:06 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 关闭电源 |  | DESKTOP-56TM6AL\Jack
+  Time: 03/01/2026 22:49:02 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 关闭电源 |  | DESKTOP-56TM6AL\Jack
+  Time: 03/01/2026 15:37:58 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 重启 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/28/2026 23:00:46 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 关闭电源 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/27/2026 07:37:09 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 重启 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/26/2026 19:15:20 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 重启 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/24/2026 20:00:43 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 重启 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/24/2026 19:15:34 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 重启 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/24/2026 17:57:49 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 重启 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/24/2026 17:13:05 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 重启 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/24/2026 16:38:53 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 重启 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/24/2026 16:11:29 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 重启 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/24/2026 16:06:30 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 重启 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/24/2026 14:22:40 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 重启 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/24/2026 13:38:38 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 重启 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/23/2026 17:11:45 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 关闭电源 |  | DESKTOP-56TM6AL\Jack
+  Time: 02/22/2026 21:51:49 | C:\Windows\System32\RuntimeBroker.exe (DESKTOP-56TM6AL) | DESKTOP-56TM6AL | 其他(计划外) | 0x0 | 重启 |  | DESKTOP-56TM6AL\Jack
+
+========== Shutdown timeline (Event 6006) ==========
+
+  Shutdown time: 03/05/2026 17:42:31
+  Shutdown time: 03/03/2026 08:02:33
+  Shutdown time: 03/02/2026 04:37:49
+  Shutdown time: 03/01/2026 15:37:59
+  Shutdown time: 02/27/2026 07:37:10
+  Shutdown time: 02/26/2026 19:15:22
+  Shutdown time: 02/24/2026 20:00:44
+  Shutdown time: 02/24/2026 19:16:00
+  Shutdown time: 02/24/2026 17:57:52
+  Shutdown time: 02/24/2026 17:13:06
+  Shutdown time: 02/24/2026 16:38:54
+  Shutdown time: 02/24/2026 16:11:31
+  Shutdown time: 02/24/2026 16:06:32
+  Shutdown time: 02/24/2026 14:22:47
+  Shutdown time: 02/24/2026 13:38:40
+  Shutdown time: 02/24/2026 13:19:58
+  Shutdown time: 02/22/2026 21:51:51
+
+========== BugCheck / BSOD (Event 1001) ==========
+
+  Read failed: 参数错误。
+
+========== Recent system errors/warnings (last 7 days) ==========
+
+  03/05/2026 17:44:04 | ID:37 | Microsoft-Windows-Kernel-Processor-Power | 组 0 中处理器 7 的速度受系统固件限制。自上次报告以来，处理器已经处于该低性能状态 85 秒。...
+  03/05/2026 17:42:53 | ID:6062 | Netwtw10 | 6062 - Lso was triggered...
+  03/05/2026 17:42:45 | ID:10016 | Microsoft-Windows-DistributedCOM | 应用程序-特定 权限设置并未向在应用程序容器 不可用 SID (不可用)中运行的地址 LocalHost (使用 LRPC) 中的用户 NT AUTHORITY\LOCAL SERVICE SID (S-1-5-19)授予针对 CLSID ...
+  03/05/2026 17:42:45 | ID:10016 | Microsoft-Windows-DistributedCOM | 应用程序-特定 权限设置并未向在应用程序容器 不可用 SID (不可用)中运行的地址 LocalHost (使用 LRPC) 中的用户 NT AUTHORITY\LOCAL SERVICE SID (S-1-5-19)授予针对 CLSID ...
+  03/05/2026 17:42:43 | ID:7023 | Service Control Manager | cphs 服务因下列错误而停止: 
+无效句柄...
+  03/05/2026 17:42:40 | ID:219 | Microsoft-Windows-Kernel-PnP | 为设备 {C5A047D8-CB5B-40E9-B9E3-316AB06B5A18}\WirelessKeyboardFilter\8&d668847&0&01 加载驱动程序 \Driver\WudfRd 失败。...
+  03/05/2026 17:42:39 | ID:219 | Microsoft-Windows-Kernel-PnP | 为设备 PCI\VEN_8086&DEV_1903&SUBSYS_19038086&REV_0C\3&11583659&0&20 加载驱动程序 \Driver\WudfRd 失败。...
+  03/05/2026 17:42:38 | ID:219 | Microsoft-Windows-Kernel-PnP | 为设备 ROOT\DISPLAY\0000 加载驱动程序 \Driver\WudfRd 失败。...
+  03/05/2026 17:42:31 | ID:10002 | Microsoft-Windows-WLAN-AutoConfig | WLAN 扩展模块已停止。
+
+模块路径: C:\Windows\system32\IntelIHVRouter10.dll
+...
+  03/05/2026 17:42:29 | ID:86 | Microsoft-Windows-Kernel-Power | 由于严重的热事件，系统已关闭。             
+关闭时间 = ‎2026‎-‎03‎-‎05T09:42:29.677655600Z             
+高级配置和电源接口热区域 = Intel(R) Dynamic T...
+  03/05/2026 15:08:19 | ID:10016 | Microsoft-Windows-DistributedCOM | 计算机-默认 权限设置并未向在应用程序容器 Microsoft.Windows.ShellExperienceHost_10.0.19041.5072_neutral_neutral_cw5n1h2txyewy SID (S-1-15-2-...
+  03/05/2026 13:51:38 | ID:10016 | Microsoft-Windows-DistributedCOM | 应用程序-特定 权限设置并未向在应用程序容器 不可用 SID (不可用)中运行的地址 LocalHost (使用 LRPC) 中的用户 DESKTOP-56TM6AL\Jack SID (S-1-5-21-416625002-2622268...
+  03/05/2026 13:51:32 | ID:7030 | Service Control Manager | SunloginService 服务标记为交互服务。但是系统配置成不允许交互服务。这项服务可能无法正常操作。...
+  03/05/2026 13:51:31 | ID:7030 | Service Control Manager | AweSunService 服务标记为交互服务。但是系统配置成不允许交互服务。这项服务可能无法正常操作。...
+  03/05/2026 10:09:47 | ID:37 | Microsoft-Windows-Kernel-Processor-Power | 组 0 中处理器 7 的速度受系统固件限制。自上次报告以来，处理器已经处于该低性能状态 180249 秒。...
+  03/05/2026 09:15:28 | ID:10016 | Microsoft-Windows-DistributedCOM | 计算机-默认 权限设置并未向在应用程序容器 Microsoft.Windows.ShellExperienceHost_10.0.19041.5072_neutral_neutral_cw5n1h2txyewy SID (S-1-15-2-...
+  03/05/2026 09:14:27 | ID:10016 | Microsoft-Windows-DistributedCOM | 计算机-默认 权限设置并未向在应用程序容器 Microsoft.Windows.ShellExperienceHost_10.0.19041.5072_neutral_neutral_cw5n1h2txyewy SID (S-1-15-2-...
+  03/05/2026 08:59:27 | ID:10016 | Microsoft-Windows-DistributedCOM | 应用程序-特定 权限设置并未向在应用程序容器 不可用 SID (不可用)中运行的地址 LocalHost (使用 LRPC) 中的用户 DESKTOP-56TM6AL\Jack SID (S-1-5-21-416625002-2622268...
+  03/04/2026 22:49:48 | ID:6062 | Netwtw10 | 6062 - Lso was triggered...
+  03/04/2026 22:49:34 | ID:10016 | Microsoft-Windows-DistributedCOM | 应用程序-特定 权限设置并未向在应用程序容器 不可用 SID (不可用)中运行的地址 LocalHost (使用 LRPC) 中的用户 NT AUTHORITY\LOCAL SERVICE SID (S-1-5-19)授予针对 CLSID ...
+  03/04/2026 22:49:34 | ID:10016 | Microsoft-Windows-DistributedCOM | 应用程序-特定 权限设置并未向在应用程序容器 不可用 SID (不可用)中运行的地址 LocalHost (使用 LRPC) 中的用户 NT AUTHORITY\LOCAL SERVICE SID (S-1-5-19)授予针对 CLSID ...
+  03/04/2026 22:49:32 | ID:7023 | Service Control Manager | Intel(R) Content Protection HECI Service 服务因下列错误而停止: 
+无效句柄...
+  03/04/2026 22:49:29 | ID:10317 | Microsoft-Windows-NDIS | 微型端口 Microsoft Wi-Fi Direct Virtual Adapter #2、{550877e3-5f25-48b4-b75a-f28f02e14925} 包含事件 Fatal error: The miniport has...
+  03/04/2026 18:25:10 | ID:10016 | Microsoft-Windows-DistributedCOM | 应用程序-特定 权限设置并未向在应用程序容器 不可用 SID (不可用)中运行的地址 LocalHost (使用 LRPC) 中的用户 DESKTOP-56TM6AL\Jack SID (S-1-5-21-416625002-2622268...
+  03/04/2026 17:15:28 | ID:10016 | Microsoft-Windows-DistributedCOM | 计算机-默认 权限设置并未向在应用程序容器 Microsoft.Windows.ShellExperienceHost_10.0.19041.5072_neutral_neutral_cw5n1h2txyewy SID (S-1-15-2-...
+  03/04/2026 13:25:35 | ID:6062 | Netwtw10 | 6062 - Lso was triggered...
+  03/04/2026 13:23:14 | ID:1014 | Microsoft-Windows-DNS-Client | 在没有配置的 DNS 服务器响应之后，名称 v10.events.data.microsoft.com 的名称解析超时。...
+  03/04/2026 13:23:12 | ID:1014 | Microsoft-Windows-DNS-Client | 在没有配置的 DNS 服务器响应之后，名称 alive.github.com 的名称解析超时。...
+  03/04/2026 13:22:53 | ID:1014 | Microsoft-Windows-DNS-Client | 在没有配置的 DNS 服务器响应之后，名称 client.wns.windows.com 的名称解析超时。...
+  03/04/2026 12:54:09 | ID:1014 | Microsoft-Windows-DNS-Client | 在没有配置的 DNS 服务器响应之后，名称 api3.cursor.sh 的名称解析超时。...
+
+========== Kernel-Power events ==========
+
+  03/05/2026 17:42:32 | ID:109 | 内核电源管理器已启动关机转换。
+
+关机原因: Kernel API
+  03/05/2026 17:42:29 | ID:86 | 由于严重的热事件，系统已关闭。             
+关闭时间 = ‎2026‎-‎03‎-‎05T09:42:29.677655600Z             
+高级配置和电源接口热区域 
+  03/04/2026 22:49:28 | ID:107 | 系统已从睡眠状态恢复。
+  03/04/2026 22:49:26 | ID:42 | 系统正在进入睡眠状态。
+
+睡眠原因: Application API
+  03/04/2026 22:49:25 | ID:187 | 用户模式进程尝试通过调用 SetSuspendState 或 SetSystemPowerState API 更改系统状态。
+  03/03/2026 17:02:32 | ID:107 | 系统已从睡眠状态恢复。
+  03/03/2026 17:02:31 | ID:42 | 系统正在进入睡眠状态。
+
+睡眠原因: Application API
+  03/03/2026 17:02:30 | ID:187 | 用户模式进程尝试通过调用 SetSuspendState 或 SetSystemPowerState API 更改系统状态。
+  03/03/2026 08:02:38 | ID:109 | 内核电源管理器已启动关机转换。
+
+关机原因: Kernel API
+  03/03/2026 08:02:31 | ID:86 | 由于严重的热事件，系统已关闭。             
+关闭时间 = ‎2026‎-‎03‎-‎03T00:02:31.894584800Z             
+高级配置和电源接口热区域 
+  03/02/2026 22:14:19 | ID:107 | 系统已从睡眠状态恢复。
+  03/02/2026 22:14:17 | ID:42 | 系统正在进入睡眠状态。
+
+睡眠原因: Application API
+  03/02/2026 22:14:16 | ID:187 | 用户模式进程尝试通过调用 SetSuspendState 或 SetSystemPowerState API 更改系统状态。
+  03/02/2026 06:47:09 | ID:107 | 系统已从睡眠状态恢复。
+  03/02/2026 06:47:08 | ID:42 | 系统正在进入睡眠状态。
+
+睡眠原因: Application API
+  03/02/2026 06:47:07 | ID:187 | 用户模式进程尝试通过调用 SetSuspendState 或 SetSystemPowerState API 更改系统状态。
+  03/02/2026 04:37:53 | ID:109 | 内核电源管理器已启动关机转换。
+
+关机原因: Kernel API
+  03/02/2026 04:37:48 | ID:86 | 由于严重的热事件，系统已关闭。             
+关闭时间 = ‎2026‎-‎03‎-‎01T20:37:48.252213100Z             
+高级配置和电源接口热区域 
+  03/01/2026 22:49:06 | ID:107 | 系统已从睡眠状态恢复。
+  03/01/2026 22:49:05 | ID:42 | 系统正在进入睡眠状态。
+
+睡眠原因: Application API
--- a/Test_ECT0_FST_FSL.ps1
+++ b/Test_ECT0_FST_FSL.ps1
@@ -0,0 +1,94 @@
+# Test ECT0 _FST / _FSL via ectest (needs ec-test-app, run as Administrator).
+# - Reads current FAND via \_SB.ECT0._FST
+# - Writes a new FAND level via \_SB.ECT0._FSL
+#   - 0–100  : 直接传给 _FSL（测试用档位）
+#   - 255   : 传 255 (=0xFF)，恢复 EC 自动控扇
+# - Then loops to monitor FAND changes over time
+
+param(
+    [string]$EctestPath = "C:\Users\Jack\ec-test-app\exe\x64\Release\ectest.exe",
+    [int]$SetFandPercent = 30,    # 0-100 = 固定档位, 255=0xFF 自动
+    [int]$Iterations = 0,          # 0 = infinite loop
+    [int]$IntervalSeconds = 1
+)
+
+if (-not (Test-Path $EctestPath)) {
+    Write-Host "ectest not found: $EctestPath" -ForegroundColor Red
+    exit 1
+}
+
+function Invoke-Ect0FstRaw {
+    param()
+    & $EctestPath -acpi "\_SB.ECT0._FST"
+}
+
+function Invoke-Ect0FslRaw {
+    param(
+        [int]$ValuePercent
+    )
+    & $EctestPath -acpi "\_SB.ECT0._FSL" $ValuePercent
+}
+
+function Get-Ect0Fand {
+    $out = Invoke-Ect0FstRaw
+    $lines = @($out)
+    $fand = $null
+    $captureNext = $false
+    foreach ($line in $lines) {
+        if ($line -match 'Argument\[1\]:') {
+            $captureNext = $true
+            continue
+        }
+        if ($captureNext) {
+            if ($line -match 'Integer Value:\s*(0x[0-9A-Fa-f]+|\d+)') {
+                $fand = $Matches[1]
+                break
+            }
+        }
+    }
+    [PSCustomObject]@{
+        Fand     = $fand
+        RawText  = ($lines -join "`r`n")
+    }
+}
+
+Write-Host "=== ECT0 _FST/_FSL test (needs DPTF debug ECT0 enabled in firmware) ===" -ForegroundColor Cyan
+Write-Host "Ectest path : $EctestPath"
+Write-Host "SetFand     : $SetFandPercent  (0-100=fixed, 255=auto)"
+Write-Host ""
+
+Write-Host "[1] Current FAND from _FST:" -ForegroundColor Green
+$cur = Get-Ect0Fand
+$fVal = if ($cur.Fand) { $cur.Fand } else { "N/A" }
+Write-Host ("  FAND = {0}" -f $fVal)
+Write-Host ""
+
+if (($SetFandPercent -ge 0 -and $SetFandPercent -le 100) -or $SetFandPercent -eq 255) {
+    Write-Host "[2] Writing FAND via _FSL($SetFandPercent) ..." -ForegroundColor Yellow
+    Invoke-Ect0FslRaw -ValuePercent $SetFandPercent
+    Write-Host ""
+
+    Write-Host "[3] Read-back FAND after _FSL:" -ForegroundColor Green
+    $after = Get-Ect0Fand
+    $fVal = if ($after.Fand) { $after.Fand } else { "N/A" }
+    Write-Host ("  FAND = {0}" -f $fVal)
+    Write-Host ""
+}
+
+Write-Host "[4] Monitoring FAND with _FST (Ctrl+C to stop) ..." -ForegroundColor Cyan
+
+$count = 0
+while ($true) {
+    $v = Get-Ect0Fand
+    $ts = Get-Date -Format "HH:mm:ss"
+    $fVal = if ($v.Fand) { $v.Fand } else { "N/A" }
+    Write-Host ("{0}  FAND = {1}" -f $ts, $fVal)
+
+    $count++
+    if ($Iterations -gt 0 -and $count -ge $Iterations) { break }
+
+    Start-Sleep -Seconds $IntervalSeconds
+}
+
+Write-Host "Done." -ForegroundColor Cyan
+
--- a/chromeos_collect_sensors.sh
+++ b/chromeos_collect_sensors.sh
@@ -0,0 +1,89 @@
+#!/bin/bash
+# Chrome OS sensor/thermal info collector
+# Run in Chrome OS shell (Ctrl+Alt+T, type 'shell' if developer mode)
+# Output saved to /tmp/ or current dir if writable
+
+OUTDIR="/tmp"
+if [ -w . ]; then OUTDIR="."; fi
+TS=$(date +%Y%m%d_%H%M%S)
+OUT="$OUTDIR/sensor_report_$TS.txt"
+
+exec 1> >(tee -a "$OUT") 2>&1
+
+echo "=========================================="
+echo "Chrome OS Sensor/Thermal Report"
+echo "Date: $(date)"
+echo "Machine: $(cat /etc/lsb-release 2>/dev/null | grep -E 'CHROMEOS_RELEASE_BOARD|CHROMEOS_DEVICETYPE' || uname -a)"
+echo "=========================================="
+echo ""
+
+echo "--- 1. ectool temps (EC sensors) ---"
+if command -v ectool >/dev/null 2>&1; then
+    ectool temps 2>/dev/null || echo "ectool temps failed"
+else
+    echo "ectool not found"
+fi
+echo ""
+
+echo "--- 2. ectool tempsinfo (all sensors, if available) ---"
+if command -v ectool >/dev/null 2>&1; then
+    ectool tempsinfo 2>/dev/null || echo "ectool tempsinfo not available"
+fi
+echo ""
+
+echo "--- 3. Thermal zones (/sys/class/thermal) ---"
+if [ -d /sys/class/thermal ]; then
+    for tz in /sys/class/thermal/thermal_zone*; do
+        [ -d "$tz" ] || continue
+        n=$(basename "$tz")
+        type=$(cat "$tz/type" 2>/dev/null)
+        temp=$(cat "$tz/temp" 2>/dev/null)
+        if [ -n "$temp" ] && [ "$temp" != "0" ]; then
+            c=$((temp / 1000))
+            echo "$n: $type = ${c} C (raw $temp mC)"
+        else
+            echo "$n: $type = N/A"
+        fi
+    done
+else
+    echo "/sys/class/thermal not found"
+fi
+echo ""
+
+echo "--- 4. Hwmon devices ---"
+if [ -d /sys/class/hwmon ]; then
+    for h in /sys/class/hwmon/hwmon*; do
+        [ -d "$h" ] || continue
+        name=$(cat "$h/name" 2>/dev/null)
+        echo "--- $h ($name) ---"
+        for t in "$h"/temp*_input; do
+            [ -f "$t" ] || continue
+            label=$(cat "${t%_input}_label" 2>/dev/null || echo "temp")
+            val=$(cat "$t" 2>/dev/null)
+            [ -n "$val" ] && echo "  $label: $((val / 1000)) C"
+        done
+    done
+else
+    echo "/sys/class/hwmon not found"
+fi
+echo ""
+
+echo "--- 5. dmesg (cros_ec, thermal, hwmon) ---"
+dmesg 2>/dev/null | grep -iE 'cros_ec|thermal|hwmon|sensor|peci' | tail -80 || echo "dmesg not available"
+echo ""
+
+echo "--- 6. Fan (if ectool available) ---"
+if command -v ectool >/dev/null 2>&1; then
+    ectool pwmgetfanrpm all 2>/dev/null || true
+    ectool pwmgetduty 0 2>/dev/null || true
+fi
+echo ""
+
+echo "--- 7. CPU info ---"
+cat /proc/cpuinfo 2>/dev/null | grep -E 'model name|Hardware' | head -2
+echo ""
+
+echo "=========================================="
+echo "Report saved to: $OUT"
+echo "To copy from Chrome OS: use 'cat $OUT' or Files app if in Downloads"
+echo "=========================================="
--- a/chromeos_collect_sensors_使用说明.txt
+++ b/chromeos_collect_sensors_使用说明.txt
@@ -0,0 +1,28 @@
+Chrome OS 传感器收集脚本使用说明
+====================================
+
+脚本: chromeos_collect_sensors.sh
+用途: 在 Chrome OS 下收集 EC 传感器、热区、hwmon、dmesg 等信息，用于验证硬件通道
+
+前置: 需开启 Chrome OS 开发者模式，进入 shell
+
+步骤:
+1. 将脚本复制到 Chromebox（U 盘、Google Drive、或 scp）
+2. 打开终端: Ctrl+Alt+T，输入 shell 回车
+3. 进入脚本所在目录
+4. 执行: chmod +x chromeos_collect_sensors.sh
+5. 执行: ./chromeos_collect_sensors.sh
+
+输出: 默认保存到 /tmp/sensor_report_YYYYMMDD_HHMMSS.txt
+      - 若当前目录可写，则保存到当前目录
+      - 可用 cat /tmp/sensor_report_*.txt 查看
+      - 若要复制回 Windows，可将输出重定向到 Downloads: 
+        ./chromeos_collect_sensors.sh 2>&1 | tee ~/Downloads/sensor_report.txt
+
+收集内容:
+- ectool temps / tempsinfo: EC 暴露的所有温度传感器
+- /sys/class/thermal: ACPI 热区温度
+- /sys/class/hwmon: Linux hwmon 设备及温度
+- dmesg: cros_ec、thermal、hwmon、sensor、peci 相关日志
+- 风扇 RPM、PWM
+- CPU 型号
--- a/ec_i2c_identify.sh
+++ b/ec_i2c_identify.sh
@@ -0,0 +1,77 @@
+#!/bin/bash
+# ec_i2c_identify.sh - 读取 EC I2C 设备寄存器，尝试识别芯片型号
+# 用法: 先跑 ec_i2c_scan.sh 得到 (port, addr)，把结果填到下面 DEVICES，或直接运行（用默认列表）
+# 需要: ECTOOL 指向 ectool-cec，sudo 运行
+#
+# 常见芯片 ID / 地址 参考（供推断用）:
+#   - 0x2c 总线、读出含 0x77/0x79 等: Nuvoton Super I/O 或 I2C 型多功能芯片；
+#     index/data 访问时「reg 0x00」可能实为当前 index 指向的数据。可能型号: NCT5532D, NCT5577D,
+#     NCT38xx (TCPC+IO)，具体以 datasheet 的 Chip ID 寄存器为准。
+#   - reg 0x80 = 0x5A 0x5E: 部分 PMIC/电源管理或传感器厂商的 Device ID 寄存器值，
+#     具体型号需查该厂商手册；0x5A5E 未在公开常见表中统一对应单一型号。
+#   - reg 0x80 = 0x54 0x49: TI INA3221/INA219 (电流/功率监测)。
+#   - 0x20 且 0x00 起有数据+大段 0xff: 常见 EEPROM (24c02 等)。
+#   - 0x38 读得 0x30 0x30(ASCII): 常见 GPIO/IO 扩展 (如 PCA9555) 或显示相关。
+#   - 0x3c/0x3d 全 0: 常见 SSD1306 等 OLED，未初始化时读回 0。
+
+set -e
+
+ECTOOL="${ECTOOL:-/home/jack/bin/ectool-cec}"
+
+# 格式: "port:addr port:addr ..."（来自 ec_i2c_scan.sh 结果）
+DEVICES="${*:-1:0x40 3:0x2c 3:0x38 3:0x39 3:0x3d 3:0x3f 3:0x42 5:0x20}"
+
+echo "使用 ECTOOL=$ECTOOL"
+echo "设备列表: $DEVICES"
+echo "---"
+
+for entry in $DEVICES; do
+    port="${entry%%:*}"
+    addr="${entry##*:}"
+    [ -z "$port" ] || [ -z "$addr" ] && continue
+    echo "=== EC port $port addr $addr ==="
+
+    # 读 reg 0x00 起 8 字节
+    out_00=$("$ECTOOL" i2cxfer "$port" "$addr" 8 0x00 2>/dev/null) || out_00=""
+    if [ -n "$out_00" ]; then
+        echo "  reg 0x00 +8: $out_00"
+    else
+        echo "  reg 0x00 +8: (读失败)"
+    fi
+
+    # 读 reg 0x80 起 2 字节（INA3221 = 0x5449）
+    out_80=$("$ECTOOL" i2cxfer "$port" "$addr" 2 0x80 2>/dev/null) || out_80=""
+    if [ -n "$out_80" ]; then
+        echo "  reg 0x80 +2: $out_80"
+        hex=$(echo "$out_80" | tr -d ' 0x\r\n' | tr 'A-F' 'a-f')
+        case "$hex" in
+            5449|4954) echo "  -> INA3221/INA219 (TI 电流/功率)" ;;
+        esac
+    fi
+
+    out_fe=$("$ECTOOL" i2cxfer "$port" "$addr" 2 0xfe 2>/dev/null) || out_fe=""
+    out_ff=$("$ECTOOL" i2cxfer "$port" "$addr" 2 0xff 2>/dev/null) || out_ff=""
+    out_0f=$("$ECTOOL" i2cxfer "$port" "$addr" 2 0x0f 2>/dev/null) || out_0f=""
+    [ -n "$out_fe" ] && echo "  reg 0xFE +2: $out_fe"
+    [ -n "$out_ff" ] && echo "  reg 0xFF +2: $out_ff"
+    [ -n "$out_0f" ] && echo "  reg 0x0F +2: $out_0f"
+
+    # 根据读出模式推断设备类型
+    hint=""
+    case "$addr" in
+        0x20) echo "$out_00" | grep -q '0xff 0xff' && hint="推断: 可能 EEPROM (24cxx)，0x00 后见 0xff 多为空区" ;;
+        0x2c) hint="推断: 可能 Nuvoton Super I/O / I2C 多功能芯片 (如 NCT5532D/NCT5577D/NCT38xx)；首字节 0x77 等可为 Chip ID；index/data 访问时直接读 reg 未必对应真实寄存器" ;;
+        0x38) echo "$out_80" | grep -q '0x30 0x30' && hint="推断: 0x80 读得 0x30 0x30(ASCII 00)，可能 GPIO/IO 扩展或显示" ;;
+        0x3d) [ -z "$out_00" ] || echo "$out_00" | grep -q '00 00 00' && hint="推断: 全 0 可能 SSD1306/显示 或 未初始化" ;;
+        0x3f) echo "$out_80" | grep -q '0x5a 0x5e' && hint="推断: 0x80=0x5A5E 为某厂商 Device ID，常见于 PMIC/电源管理或传感器；具体型号需查该厂商 datasheet" ;;
+        0x40|0x42) echo "$out_80" | grep -q '0x54 0x49' && hint="推断: INA3221 (TI)" || hint="推断: 电流/功率类芯片，非标准 0x5449 或 未使能" ;;
+    esac
+    [ -n "$hint" ] && echo "  $hint"
+
+    echo ""
+done
+
+echo "--- 参考（常见芯片 ID/可能型号）---"
+echo "  0x80=0x5449 -> TI INA3221/INA219 | 0x80=0x5A5E -> 某 PMIC/传感器厂商 ID，型号查 datasheet"
+echo "  0x2c 总线、首字节 0x77 等 -> Nuvoton NCT55xx/NCT5577D/NCT38xx 等 Super I/O 或 I2C 多功能"
+echo "  0x20 有数据+0xff -> EEPROM(24cxx) | 0x38 读得 0x30 0x30 -> GPIO/IO 扩展 | 0x3d 全 0 -> 可能 SSD1306"
--- a/ec_i2c_scan.sh
+++ b/ec_i2c_scan.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+# ec_i2c_scan.sh - 用 ectool i2cxfer 扫描 EC 各 I2C port 上的设备
+# 用法: ECTOOL=/path/to/ectool-cec sudo ./ec_i2c_scan.sh [port1 port2 ...]
+# 不传 port 时默认扫 port 0~7。必须用 Chromium 的 ectool-cec，系统 ectool 无 i2cxfer。
+
+set -e
+ECTOOL=/home/jack/bin/ectool-cec
+
+# 默认用 ectool-cec（系统 ectool 不支持 i2cxfer）
+if [ -z "$ECTOOL" ]; then
+    for candidate in ectool-cec ./ectool-cec "$HOME/bin/ectool-cec"; do
+        if command -v "$candidate" >/dev/null 2>&1 || [ -x "$candidate" ]; then
+            ECTOOL="$candidate"
+            break
+        fi
+    done
+fi
+ECTOOL="${ECTOOL:-ectool-cec}"
+PORTS="${*:-0 1 2 3 4 5 6 7}"
+
+if ! command -v "$ECTOOL" >/dev/null 2>&1 && ! [ -x "$ECTOOL" ]; then
+    echo "未找到 ectool-cec（需 Chromium EC 的 ectool，系统 ectool 无 i2cxfer）。请设置 ECTOOL："
+    echo "  ECTOOL=/home/jack/bin/ectool-cec sudo $0"
+    exit 1
+fi
+
+# 7bit 地址范围（0x00-0x07 保留，0x78-0x7f 多为 10bit）
+for port in $PORTS; do
+    found=""
+    for addr in $(seq 8 119); do
+        hexaddr=$(printf "0x%02x" "$addr")
+        if "$ECTOOL" i2cxfer "$port" "$hexaddr" 1 >/dev/null 2>&1; then
+            found="$found $hexaddr"
+        fi
+    done
+    if [ -n "$found" ]; then
+        echo "EC I2C port $port:$found"
+    else
+        echo "EC I2C port $port: (无设备)"
+    fi
+done
--- a/ectool测试.ps1
+++ b/ectool测试.ps1
@@ -0,0 +1,73 @@
+# ectool test script - run as Administrator
+# Tests EC communication, temperature, fan, battery and saves result to .txt
+# Use cmd to capture stderr as text (no PowerShell error wrapper)
+
+$EctoolPath = "C:\Program Files\crosec\ectool.exe"
+$ReportDir = $PSScriptRoot
+$Timestamp = Get-Date -Format "yyyyMMdd_HHmmss"
+$ReportFile = Join-Path $ReportDir "ectool_test_$Timestamp.txt"
+
+$Report = ""
+
+function Run-Ectool {
+    param([string]$Cmd, [string]$Desc)
+    $script:Report += "`n--- $Desc ---`n"
+    if (-not (Test-Path $EctoolPath)) {
+        $script:Report += "ectool not found at: $EctoolPath`n"
+        return
+    }
+    try {
+        $argList = $Cmd -split "\s+", 0, "IgnoreCase"
+        $argStr = ($argList | ForEach-Object { $_ }) -join " "
+        $cmdLine = "`"$EctoolPath`" $argStr 2>&1"
+        $out = cmd /c $cmdLine
+        $script:Report += ($out | Out-String)
+    } catch {
+        $script:Report += "Error: $($_.Exception.Message)`n"
+    }
+}
+
+$Report += "ectool test report`n"
+$Report += "Time: $(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')`n"
+$Report += "Computer: $env:COMPUTERNAME`n"
+
+# 1. Basic EC communication
+Run-Ectool "hello" "1. EC communication (hello)"
+Run-Ectool "version" "2. EC version"
+
+# 2. Temperature (try common sensor IDs)
+Run-Ectool "temps 0" "3. Temperature sensor 0"
+Run-Ectool "temps 1" "4. Temperature sensor 1"
+Run-Ectool "tempsinfo 0" "5. Temperature sensor 0 info"
+
+# 3. Fan
+Run-Ectool "pwmgetnumfans" "6. Number of fans"
+Run-Ectool "pwmgetfanrpm all" "7. Fan RPM (all)"
+
+# 4. Power / battery
+Run-Ectool "battery" "8. Battery info"
+Run-Ectool "powerinfo" "9. Power info"
+
+# 5. System
+Run-Ectool "sysinfo" "10. System info"
+Run-Ectool "chipinfo" "11. Chip info"
+
+# 6. Optional: thermal thresholds (may not be supported on all boards)
+Run-Ectool "thermalget" "12. Thermal thresholds (thermalget)"
+
+# Summary
+$Report += "`n--- Summary ---`n"
+if ($Report -match "ioctl errno 6|EC result 255") {
+    $Report += "This report contains 'ioctl errno 6' or 'EC result 255'.`n"
+    $Report += "If you DO have Chrome EC bus: often driver/interface or permission.`n"
+    $Report += "  - Run PowerShell as Administrator.`n"
+    $Report += "  - Check crosec service is running (services.msc).`n"
+    $Report += "  - Try: ectool --interface=dev hello  or  ectool --name=cros_ec hello`n"
+    $Report += "If no Chrome EC hardware, use HWiNFO or Core Temp for temperature.`n"
+} else {
+    $Report += "Some commands succeeded. Chrome EC communication is working.`n"
+}
+
+$Report | Set-Content -Path $ReportFile -Encoding UTF8
+Write-Host "Report saved: $ReportFile" -ForegroundColor Green
+Write-Host $Report
--- a/ectool监控温度风扇.ps1
+++ b/ectool监控温度风扇.ps1
@@ -0,0 +1,38 @@
+# ectool monitor: loop run "temps 0" and "pwmgetfanrpm all". Admin. Ctrl+C quit.
+
+$EctoolPath = "C:\Program Files\crosec\ectool.exe"
+$IntervalSeconds = 2
+
+if (-not (Test-Path $EctoolPath)) {
+    Write-Host "ectool not found: $EctoolPath" -ForegroundColor Red
+    exit 1
+}
+
+Write-Host "ectool monitor (every ${IntervalSeconds}s, Ctrl+C quit)" -ForegroundColor Green
+Write-Host ""
+
+try {
+    while ($true) {
+        Write-Host ("--- " + (Get-Date -Format "yyyy-MM-dd HH:mm:ss") + " ---") -ForegroundColor Cyan
+
+        Write-Host "> ectool temps 0" -ForegroundColor DarkGray
+        & $EctoolPath temps 0
+
+        Write-Host "> ectool pwmgetfanrpm all" -ForegroundColor DarkGray
+        & $EctoolPath pwmgetfanrpm all
+
+        Write-Host "> ectool pwmgetduty 0" -ForegroundColor DarkGray
+        $dutyOut = & $EctoolPath pwmgetduty 0
+        $dutyOut | Write-Host
+        if ($dutyOut -match 'duty:\s*(\d+)') {
+            $raw = [int]$Matches[1]
+            $pct = [Math]::Round(100.0 * $raw / 65535, 1)
+            Write-Host "  -> Duty cycle: $pct% (raw $raw / 65535)" -ForegroundColor Yellow
+        }
+
+        Write-Host ""
+        Start-Sleep -Seconds $IntervalSeconds
+    }
+} finally {
+    Write-Host "Done." -ForegroundColor Cyan
+}
--- a/i2c_scan.sh
+++ b/i2c_scan.sh
@@ -0,0 +1,24 @@
+#!/bin/bash
+# i2c_scan_all.sh - 扫描当前系统所有 I2C 总线上的设备
+
+set -e
+
+if ! command -v i2cdetect >/dev/null 2>&1; then
+    echo "未找到 i2cdetect，请先安装 i2c-tools："
+    echo "  sudo apt install i2c-tools"
+    exit 1
+fi
+
+echo "列出 I2C 总线："
+i2cdetect -l
+echo
+
+buses=$(i2cdetect -l | awk '{print $1}' | sed 's/i2c-//')
+
+for bus in $buses; do
+    echo "==============================="
+    echo "扫描 I2C bus $bus (/dev/i2c-$bus)"
+    echo "==============================="
+    i2cdetect -y "$bus"
+    echo
+done
--- a/linux_collect_sensors.sh
+++ b/linux_collect_sensors.sh
@@ -0,0 +1,95 @@
+#!/bin/bash
+# Strip CRLF and re-exec if needed (fix Windows line endings)
+if grep -q $'\r' "$0" 2>/dev/null; then
+    exec bash -s "$@" < <(sed 's/\r$//' "$0")
+fi
+# Linux sensor/thermal info collector
+# Works on generic Linux (Ubuntu, Debian, etc.) and Chromebox with Linux
+# Run: chmod +x linux_collect_sensors.sh && ./linux_collect_sensors.sh
+
+OUTDIR="/tmp"
+[ -w . ] 2>/dev/null && OUTDIR="."
+TS=$(date +%Y%m%d_%H%M%S)
+OUT="$OUTDIR/sensor_report_$TS.txt"
+
+exec 1> >(tee -a "$OUT") 2>&1
+
+echo "=========================================="
+echo "Linux Sensor/Thermal Report"
+echo "Date: $(date)"
+echo "Host: $(hostname)  $(uname -r)"
+echo "=========================================="
+echo ""
+
+echo "--- 1. Thermal zones (/sys/class/thermal) ---"
+if [ -d /sys/class/thermal ]; then
+    for tz in /sys/class/thermal/thermal_zone*; do
+        [ -d "$tz" ] || continue
+        n=$(basename "$tz")
+        type=$(cat "$tz/type" 2>/dev/null)
+        temp=$(cat "$tz/temp" 2>/dev/null)
+        trip_0=$(cat "$tz/trip_point_0_temp" 2>/dev/null) || trip_0=""
+        if [ -n "$temp" ] && [ "$temp" != "0" ]; then
+            c=$((temp / 1000))
+            echo -n "$n: $type = ${c} C"
+            [ -n "$trip_0" ] && [ "$trip_0" != "0" ] && echo -n " (trip_point_0: $((trip_0 / 1000)) C)"
+            echo
+        else
+            echo "$n: $type = N/A"
+        fi
+    done
+else
+    echo "/sys/class/thermal not found"
+fi
+echo ""
+
+echo "--- 2. Hwmon devices ---"
+if [ -d /sys/class/hwmon ]; then
+    for h in /sys/class/hwmon/hwmon*; do
+        [ -d "$h" ] || continue
+        name=$(cat "$h/name" 2>/dev/null)
+        echo "--- $h ($name) ---"
+        for t in "$h"/temp*_input; do
+            [ -f "$t" ] || continue
+            bn=$(basename "$t" _input)
+            label=$(cat "$h/${bn}_label" 2>/dev/null || echo "${bn}")
+            val=$(cat "$t" 2>/dev/null)
+            [ -n "$val" ] && echo "  $label: $((val / 1000)) C"
+        done
+        [ -z "$(ls "$h"/temp*_input 2>/dev/null)" ] && echo "  (no temp inputs)"
+    done
+else
+    echo "/sys/class/hwmon not found"
+fi
+echo ""
+
+echo "--- 3. lm-sensors (sensors) ---"
+if command -v sensors >/dev/null 2>&1; then
+    sensors 2>/dev/null || echo "sensors command failed"
+else
+    echo "sensors not installed (apt install lm-sensors)"
+fi
+echo ""
+
+echo "--- 4. ectool (EC sensors, Chromebox/Chrome EC) ---"
+if command -v ectool >/dev/null 2>&1; then
+    out=$(ectool temps 2>&1) && echo "$out" || echo "ectool temps failed"
+    out=$(ectool tempsinfo 2>&1) && echo "$out"
+    out=$(ectool pwmgetfanrpm all 2>&1) && echo "$out"
+    out=$(ectool pwmgetduty 0 2>&1) && echo "$out"
+else
+    echo "ectool not found (skip on non-Chromebox)"
+fi
+echo ""
+
+echo "--- 5. dmesg (thermal, hwmon, cros_ec, sensor, peci) ---"
+dmesg 2>/dev/null | grep -iE 'thermal|hwmon|sensor|cros_ec|peci|intel.*temp' | tail -100 || echo "dmesg not available (need root?)"
+echo ""
+
+echo "--- 6. CPU info ---"
+grep -E 'model name|Hardware' /proc/cpuinfo 2>/dev/null | head -2
+echo ""
+
+echo "=========================================="
+echo "Report saved to: $OUT"
+echo "=========================================="
--- a/linux_collect_sensors_使用说明.txt
+++ b/linux_collect_sensors_使用说明.txt
@@ -0,0 +1,25 @@
+Linux 传感器收集脚本使用说明
+====================================
+
+脚本: linux_collect_sensors.sh
+用途: 在 Linux 下收集热区、hwmon、lm-sensors、ectool（如有）、dmesg 等信息
+
+适用: 通用 Linux（Ubuntu、Debian 等），以及 Chromebox 安装的 Linux 发行版
+
+步骤:
+1. chmod +x linux_collect_sensors.sh
+2. ./linux_collect_sensors.sh
+
+输出: /tmp/sensor_report_YYYYMMDD_HHMMSS.txt（或当前目录）
+
+收集内容:
+- /sys/class/thermal: ACPI 热区温度
+- /sys/class/hwmon: Linux hwmon 设备及温度
+- lm-sensors (sensors): 若已安装
+- ectool: 若为 Chromebox 且有 ectool（Chrome EC）
+- dmesg: thermal/hwmon/cros_ec/sensor/peci 相关日志
+- CPU 型号
+
+可选安装:
+- lm-sensors: apt install lm-sensors  # Debian/Ubuntu
+- 安装后执行 sensors-detect 初始化
--- a/sensor_report_20260224_142816.txt
+++ b/sensor_report_20260224_142816.txt
@@ -0,0 +1,135 @@
+==========================================
+Linux Sensor/Thermal Report
+Date: 2026年 02月 24日 星期二 14:28:16 CST
+Host: jack-Kaisa  6.17.0-14-generic
+==========================================
+
+--- 1. Thermal zones (/sys/class/thermal) ---
+thermal_zone0: pch_cannonlake = 51 C (trip_point_0: 120 C)
+thermal_zone1: INT3400 Thermal = 20 C
+thermal_zone2: TSR0 = 43 C (trip_point_0: -274 C)
+thermal_zone3: TCPU = 69 C (trip_point_0: 100 C)
+thermal_zone4: x86_pkg_temp = 70 C (trip_point_0: -274 C)
+thermal_zone5: iwlwifi_1 = 44 C (trip_point_0: -274 C)
+
+--- 2. Hwmon devices ---
+--- /sys/class/hwmon/hwmon0 (nvme) ---
+  Composite: 34 C
+--- /sys/class/hwmon/hwmon1 (coretemp) ---
+  Package id 0: 67 C
+  Core 0: 69 C
+  Core 1: 67 C
+  Core 2: 66 C
+  Core 3: 66 C
+--- /sys/class/hwmon/hwmon2 (pch_cannonlake) ---
+  temp1: 52 C
+--- /sys/class/hwmon/hwmon3 (cros_ec) ---
+  Core: 43 C
+--- /sys/class/hwmon/hwmon4 (CROS_USBPD_CHARGER0) ---
+  (no temp inputs)
+--- /sys/class/hwmon/hwmon5 (CROS_DEDICATED_CHARGER) ---
+  (no temp inputs)
+--- /sys/class/hwmon/hwmon6 (iwlwifi_1) ---
+  temp1: 44 C
+
+--- 3. lm-sensors (sensors) ---
+iwlwifi_1-virtual-0
+Adapter: Virtual device
+temp1:        +44.0°C  
+
+CROS_USBPD_CHARGER0-isa-0000
+Adapter: ISA adapter
+in0:           0.00 V  
+curr1:            N/A  (max =  +1.50 A)
+
+pch_cannonlake-virtual-0
+Adapter: Virtual device
+temp1:        +51.0°C  
+
+nvme-pci-0200
+Adapter: PCI adapter
+Composite:    +34.9°C  (low  =  -5.2°C, high = +79.8°C)
+                       (crit = +84.8°C)
+
+CROS_DEDICATED_CHARGER-isa-0000
+Adapter: ISA adapter
+in0:          19.30 V  
+
+cros_ec-isa-0000
+Adapter: ISA adapter
+fan1:        2386 RPM
+Core:         +43.9°C  
+
+coretemp-isa-0000
+Adapter: ISA adapter
+Package id 0:  +67.0°C  (high = +100.0°C, crit = +100.0°C)
+Core 0:        +69.0°C  (high = +100.0°C, crit = +100.0°C)
+Core 1:        +67.0°C  (high = +100.0°C, crit = +100.0°C)
+Core 2:        +66.0°C  (high = +100.0°C, crit = +100.0°C)
+Core 3:        +66.0°C  (high = +100.0°C, crit = +100.0°C)
+
+
+--- 4. ectool (EC sensors, Chromebox/Chrome EC) ---
+usage: ectool [-vh?Vidq] [-w 0x<addr> -z 0x<data>]
+
+   -v | --version:                   print the version
+   -h | --help:                      print this help
+
+   -V | --verbose:                   print debug information
+   -p | --getports:                  get EC data & cmd ports from /proc/ioports
+   -d | --dump:                      print RAM
+   -i | --idx:                       print IDX RAM & RAM
+   -q | --query:                     print query byte
+   -w <addr in hex>                  write to addr
+   -z <data in hex>                  write to data
+
+ectool temps failed
+usage: ectool [-vh?Vidq] [-w 0x<addr> -z 0x<data>]
+
+   -v | --version:                   print the version
+   -h | --help:                      print this help
+
+   -V | --verbose:                   print debug information
+   -p | --getports:                  get EC data & cmd ports from /proc/ioports
+   -d | --dump:                      print RAM
+   -i | --idx:                       print IDX RAM & RAM
+   -q | --query:                     print query byte
+   -w <addr in hex>                  write to addr
+   -z <data in hex>                  write to data
+
+usage: ectool [-vh?Vidq] [-w 0x<addr> -z 0x<data>]
+
+   -v | --version:                   print the version
+   -h | --help:                      print this help
+
+   -V | --verbose:                   print debug information
+   -p | --getports:                  get EC data & cmd ports from /proc/ioports
+   -d | --dump:                      print RAM
+   -i | --idx:                       print IDX RAM & RAM
+   -q | --query:                     print query byte
+   -w <addr in hex>                  write to addr
+   -z <data in hex>                  write to data
+
+usage: ectool [-vh?Vidq] [-w 0x<addr> -z 0x<data>]
+
+   -v | --version:                   print the version
+   -h | --help:                      print this help
+
+   -V | --verbose:                   print debug information
+   -p | --getports:                  get EC data & cmd ports from /proc/ioports
+   -d | --dump:                      print RAM
+   -i | --idx:                       print IDX RAM & RAM
+   -q | --query:                     print query byte
+   -w <addr in hex>                  write to addr
+   -z <data in hex>                  write to data
+
+
+--- 5. dmesg (thermal, hwmon, cros_ec, sensor, peci) ---
+
+--- 6. CPU info ---
+model name	: Intel(R) Core(TM) i7-10610U CPU @ 1.80GHz
+model name	: Intel(R) Core(TM) i7-10610U CPU @ 1.80GHz
+
+==========================================
+Report saved to: ./sensor_report_20260224_142816.txt
+==========================================
--- a/sensor_report_20260224_143102.txt
+++ b/sensor_report_20260224_143102.txt
@@ -0,0 +1,83 @@
+==========================================
+Linux Sensor/Thermal Report
+Date: 2026年 02月 24日 星期二 14:31:02 CST
+Host: jack-Kaisa  6.17.0-14-generic
+==========================================
+
+--- 1. Thermal zones (/sys/class/thermal) ---
+thermal_zone0: pch_cannonlake = 50 C (trip_point_0: 120 C)
+thermal_zone1: INT3400 Thermal = 20 C
+thermal_zone2: TSR0 = 41 C (trip_point_0: -274 C)
+thermal_zone3: TCPU = 76 C (trip_point_0: 100 C)
+thermal_zone4: x86_pkg_temp = 76 C (trip_point_0: -274 C)
+thermal_zone5: iwlwifi_1 = 44 C (trip_point_0: -274 C)
+
+--- 2. Hwmon devices ---
+--- /sys/class/hwmon/hwmon0 (nvme) ---
+  Composite: 33 C
+--- /sys/class/hwmon/hwmon1 (coretemp) ---
+  Package id 0: 79 C
+  Core 0: 71 C
+  Core 1: 63 C
+  Core 2: 69 C
+  Core 3: 70 C
+--- /sys/class/hwmon/hwmon2 (pch_cannonlake) ---
+  temp1: 50 C
+--- /sys/class/hwmon/hwmon3 (cros_ec) ---
+  Core: 41 C
+--- /sys/class/hwmon/hwmon4 (CROS_USBPD_CHARGER0) ---
+  (no temp inputs)
+--- /sys/class/hwmon/hwmon5 (CROS_DEDICATED_CHARGER) ---
+  (no temp inputs)
+--- /sys/class/hwmon/hwmon6 (iwlwifi_1) ---
+  temp1: 44 C
+
+--- 3. lm-sensors (sensors) ---
+iwlwifi_1-virtual-0
+Adapter: Virtual device
+temp1:        +44.0°C  
+
+CROS_USBPD_CHARGER0-isa-0000
+Adapter: ISA adapter
+in0:           0.00 V  
+curr1:            N/A  (max =  +1.50 A)
+
+pch_cannonlake-virtual-0
+Adapter: Virtual device
+temp1:        +52.0°C  
+
+nvme-pci-0200
+Adapter: PCI adapter
+Composite:    +33.9°C  (low  =  -5.2°C, high = +79.8°C)
+                       (crit = +84.8°C)
+
+CROS_DEDICATED_CHARGER-isa-0000
+Adapter: ISA adapter
+in0:          19.28 V  
+
+cros_ec-isa-0000
+Adapter: ISA adapter
+fan1:        2087 RPM
+Core:         +41.9°C  
+
+coretemp-isa-0000
+Adapter: ISA adapter
+Package id 0:  +79.0°C  (high = +100.0°C, crit = +100.0°C)
+Core 0:        +71.0°C  (high = +100.0°C, crit = +100.0°C)
+Core 1:        +63.0°C  (high = +100.0°C, crit = +100.0°C)
+Core 2:        +69.0°C  (high = +100.0°C, crit = +100.0°C)
+Core 3:        +70.0°C  (high = +100.0°C, crit = +100.0°C)
+
+
+--- 4. ectool (EC sensors, Chromebox/Chrome EC) ---
+ectool temps failed
+
+--- 5. dmesg (thermal, hwmon, cros_ec, sensor, peci) ---
+
+--- 6. CPU info ---
+model name	: Intel(R) Core(TM) i7-10610U CPU @ 1.80GHz
+model name	: Intel(R) Core(TM) i7-10610U CPU @ 1.80GHz
+
+==========================================
+Report saved to: ./sensor_report_20260224_143102.txt
+==========================================
--- a/列出风扇温控相关设备.ps1
+++ b/列出风扇温控相关设备.ps1
@@ -0,0 +1,37 @@
+# List Windows devices that may relate to fan / thermal / EC control.
+# Run in PowerShell (Admin optional but may show more). Output saved to same folder.
+
+$outFile = Join-Path $PSScriptRoot "设备列表_风扇温控相关_$(Get-Date -Format 'yyyyMMdd_HHmmss').txt"
+$keywords = @(
+    'Fan', 'Thermal', 'Temperature', 'EC ', 'Embedded Controller',
+    'Intel Dynamic Tuning', 'ACPI', 'Nuvoton', 'NPCx', 'Chrome',
+    'Cooling', 'Sensor', 'Power', 'Thermal Zone'
+)
+
+$all = Get-PnpDevice -ErrorAction SilentlyContinue | Where-Object { $_.Status -eq 'OK' }
+$names = $all | Select-Object -ExpandProperty FriendlyName -Unique | Sort-Object
+$filtered = $names | Where-Object {
+    $n = $_
+    $keywords | Where-Object { $n -match $_ }
+}
+$filtered = $filtered | Sort-Object -Unique
+
+$lines = @()
+$lines += "=== Fan / Thermal / EC related devices (keyword match) ==="
+$lines += ""
+if ($filtered) {
+    $filtered | ForEach-Object { $lines += $_ }
+} else {
+    $lines += "(none matched keywords)"
+}
+$lines += ""
+$lines += "=== Full device list (first 200, for reference) ==="
+$lines += ""
+$names | Select-Object -First 200 | ForEach-Object { $lines += $_ }
+
+$text = $lines -join "`r`n"
+$text | Set-Content -Path $outFile -Encoding UTF8
+Write-Host "Saved: $outFile"
+Write-Host ""
+Write-Host "--- Fan/Thermal/EC related ---"
+$filtered | ForEach-Object { Write-Host $_ }
--- a/收集关机信息.ps1
+++ b/收集关机信息.ps1
@@ -0,0 +1,138 @@
+# Shutdown info collection script - Run as Administrator for full event log access
+# All output is saved to a .txt file in the same folder
+
+$ReportDir = $PSScriptRoot
+$Timestamp = Get-Date -Format "yyyyMMdd_HHmmss"
+$ReportFile = Join-Path $ReportDir "ShutdownReport_$Timestamp.txt"
+
+function Write-Report {
+    param([string]$Text, [string]$Section = "")
+    if ($Section) { $script:Report += "`n========== $Section ==========`n" }
+    $script:Report += $Text + "`n"
+}
+
+$Report = ""
+Write-Report "Shutdown Analysis Report" "Header"
+Write-Report "Generated: $(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')"
+Write-Report "Computer: $env:COMPUTERNAME"
+Write-Report "User: $env:USERNAME"
+
+# System info
+Write-Report "" "System Info"
+try {
+    $os = Get-CimInstance Win32_OperatingSystem -ErrorAction SilentlyContinue
+    if ($os) {
+        Write-Report "OS: $($os.Caption) (Version $($os.Version))"
+        Write-Report "Last boot: $($os.LastBootUpTime)"
+        Write-Report "Uptime: $((New-TimeSpan -Start $os.LastBootUpTime -End (Get-Date)).ToString())"
+    }
+} catch { Write-Report "Failed to get system info: $_" }
+
+# Event ID descriptions
+$ShutdownEventIds = @{
+    41 = "Kernel-Power: System did not shut down cleanly (power loss/BSOD/forced)"
+    1074 = "User or process initiated shutdown/restart"
+    6006 = "Event log service stopped (written on normal shutdown)"
+    6008 = "Unexpected shutdown - previous shutdown was unexpected"
+    109 = "Kernel-Power: Critical battery/power event"
+    1 = "Kernel-Power: Wake from sleep"
+    42 = "Kernel-Power: System entering sleep"
+}
+
+Write-Report "" "Event ID Reference"
+foreach ($id in ($ShutdownEventIds.Keys | Sort-Object)) {
+    Write-Report "  Event ID $id : $($ShutdownEventIds[$id])"
+}
+
+# 1. Unexpected shutdown (6008)
+Write-Report "" "[IMPORTANT] Unexpected shutdowns (Event 6008)"
+try {
+    $events6008 = Get-WinEvent -FilterHashtable @{ LogName = 'System'; Id = 6008 } -MaxEvents 50 -ErrorAction SilentlyContinue
+    if ($events6008) {
+        foreach ($e in $events6008) {
+            Write-Report "  Time: $($e.TimeCreated) | Unexpected shutdown"
+        }
+    } else { Write-Report "  No 6008 records found (or run as Administrator)" }
+} catch { Write-Report "  Read failed: $($_.Exception.Message)" }
+
+# 2. Kernel-Power 41 - unclean shutdown
+Write-Report "" "[IMPORTANT] Unclean shutdown / power loss (Event 41)"
+try {
+    $events41 = Get-WinEvent -FilterHashtable @{ LogName = 'System'; Id = 41; ProviderName = 'Microsoft-Windows-Kernel-Power' } -MaxEvents 30 -ErrorAction SilentlyContinue
+    if ($events41) {
+        foreach ($e in $events41) {
+            Write-Report "  Time: $($e.TimeCreated)"
+            if ($e.Properties.Count -ge 1) { Write-Report "     BugcheckCode: $($e.Properties[0].Value)" }
+        }
+    } else { Write-Report "  No Event 41 records" }
+} catch { Write-Report "  Read failed: $($_.Exception.Message)" }
+
+# 3. Shutdown/restart source (1074)
+Write-Report "" "Shutdown/Restart source (Event 1074)"
+try {
+    $events1074 = Get-WinEvent -FilterHashtable @{ LogName = 'System'; Id = 1074 } -MaxEvents 20 -ErrorAction SilentlyContinue
+    if ($events1074) {
+        foreach ($e in $events1074) {
+            $props = $e.Properties
+            $who = ""
+            for ($i = 0; $i -lt $props.Count; $i++) { $who += $props[$i].Value; if ($i -lt $props.Count - 1) { $who += " | " } }
+            Write-Report "  Time: $($e.TimeCreated) | $who"
+        }
+    } else { Write-Report "  No 1074 records" }
+} catch { Write-Report "  Read failed: $($_.Exception.Message)" }
+
+# 4. Event log service stopped (6006) - one per shutdown
+Write-Report "" "Shutdown timeline (Event 6006)"
+try {
+    $events6006 = Get-WinEvent -FilterHashtable @{ LogName = 'System'; Id = 6006 } -MaxEvents 30 -ErrorAction SilentlyContinue
+    if ($events6006) {
+        foreach ($e in $events6006) {
+            Write-Report "  Shutdown time: $($e.TimeCreated)"
+        }
+    } else { Write-Report "  No 6006 records" }
+} catch { Write-Report "  Read failed: $($_.Exception.Message)" }
+
+# 5. BugCheck / BSOD
+Write-Report "" "BugCheck / BSOD (Event 1001)"
+try {
+    $events1001 = Get-WinEvent -FilterHashtable @{ LogName = 'Microsoft-Windows-WER-Diag/Operational'; Id = 1001 } -MaxEvents 10 -ErrorAction SilentlyContinue
+    if ($events1001) {
+        foreach ($e in $events1001) {
+            Write-Report "  Time: $($e.TimeCreated) | $($e.Message)"
+        }
+    } else { Write-Report "  No WER BugCheck records" }
+} catch { Write-Report "  Read failed: $($_.Exception.Message)" }
+
+# 6. Recent system errors (last 7 days)
+Write-Report "" "Recent system errors/warnings (last 7 days)"
+try {
+    $cutoff = (Get-Date).AddDays(-7)
+    $critical = Get-WinEvent -FilterHashtable @{ LogName = 'System'; Level = 2,3 } -MaxEvents 30 -ErrorAction SilentlyContinue | Where-Object { $_.TimeCreated -ge $cutoff }
+    if ($critical) {
+        foreach ($e in $critical) {
+            $msgLen = [Math]::Min(120, $e.Message.Length)
+            Write-Report "  $($e.TimeCreated) | ID:$($e.Id) | $($e.ProviderName) | $($e.Message.Substring(0, $msgLen))..."
+        }
+    } else { Write-Report "  No recent critical events" }
+} catch { Write-Report "  Read failed: $($_.Exception.Message)" }
+
+# 7. Power / thermal
+Write-Report "" "Kernel-Power events"
+try {
+    $power = Get-WinEvent -FilterHashtable @{ LogName = 'System'; ProviderName = 'Microsoft-Windows-Kernel-Power' } -MaxEvents 20 -ErrorAction SilentlyContinue
+    if ($power) {
+        foreach ($e in $power) {
+            $msgLen = [Math]::Min(100, $e.Message.Length)
+            Write-Report "  $($e.TimeCreated) | ID:$($e.Id) | $($e.Message.Substring(0, $msgLen))"
+        }
+    } else { Write-Report "  No Kernel-Power events" }
+} catch { Write-Report "  Read failed: $($_.Exception.Message)" }
+
+# Write to txt file
+$Report | Set-Content -Path $ReportFile -Encoding UTF8 -NoNewline
+if (Test-Path $ReportFile) {
+    Write-Host "Report saved to: $ReportFile" -ForegroundColor Green
+    Write-Host "Open the .txt file with Notepad to view." -ForegroundColor Yellow
+} else {
+    Write-Host "Save failed." -ForegroundColor Red
+}
--- a/收集蓝屏信息.ps1
+++ b/收集蓝屏信息.ps1
@@ -0,0 +1,127 @@
+# BSOD (Blue Screen) info collection - Run as Administrator for full access
+# Output saved to BSODReport_*.txt in same folder
+
+$ReportDir = $PSScriptRoot
+$Timestamp = Get-Date -Format "yyyyMMdd_HHmmss"
+$ReportFile = Join-Path $ReportDir "BSODReport_$Timestamp.txt"
+
+function Write-Report {
+    param([string]$Text, [string]$Section = "")
+    if ($Section) { $script:Report += "`n========== $Section ==========`n" }
+    $script:Report += $Text + "`n"
+}
+
+# Common BugCheck codes (hex, 0x prefix optional)
+$BugCheckNames = @{
+    "0x0000000A" = "IRQL_NOT_LESS_OR_EQUAL"
+    "0x0000001E" = "KMODE_EXCEPTION_NOT_HANDLED"
+    "0x0000003B" = "SYSTEM_SERVICE_EXCEPTION"
+    "0x00000050" = "PAGE_FAULT_IN_NONPAGED_AREA"
+    "0x0000007E" = "SYSTEM_THREAD_EXCEPTION_NOT_HANDLED"
+    "0x0000007F" = "UNEXPECTED_KERNEL_MODE_TRAP"
+    "0x000000D1" = "DRIVER_IRQL_NOT_LESS_OR_EQUAL"
+    "0x000000D8" = "DRIVER_USED_EXCESSIVE_PTES"
+    "0x000000EA" = "THREAD_STUCK_IN_DEVICE_DRIVER"
+    "0x000000BE" = "ATTEMPTED_WRITE_TO_READONLY_MEMORY"
+    "0x000000C2" = "BAD_POOL_CALLER"
+    "0x000000C5" = "DRIVER_CORRUPTED_EXPOOL"
+    "0x000000EF" = "CRITICAL_PROCESS_DIED"
+    "0x00000109" = "CRITICAL_STRUCTURE_CORRUPTION"
+    "0x00000133" = "DPC_WATCHDOG_VIOLATION"
+    "0x00000139" = "KERNEL_SECURITY_CHECK_FAILURE"
+    "0x000001E2" = "KERNEL_MODE_HEAP_CORRUPTION"
+    "0x0000014C" = "REFERENCE_BY_POINTER"
+    "0x00000019" = "BAD_POOL_HEADER"
+    "0x0000001A" = "MEMORY_MANAGEMENT"
+}
+
+function Get-BugCheckName {
+    param([string]$Code)
+    $h = if ($Code -match "^0x") { $Code } else { "0x" + $Code }
+    $h = $h.ToUpper()
+    if ($BugCheckNames[$h]) { return $BugCheckNames[$h] }
+    return $Code
+}
+
+$Report = ""
+Write-Report "BSOD / Blue Screen Crash Report" "Header"
+Write-Report "Generated: $(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')"
+Write-Report "Computer: $env:COMPUTERNAME"
+Write-Report "Run this AFTER reboot to collect the previous crash info."
+
+# 1. Event 1001 - Windows Error Reporting (Application log)
+Write-Report "" "[Primary] BugCheck / BSOD (Event 1001, Application log)"
+try {
+    $evt = Get-WinEvent -FilterHashtable @{ LogName = 'Application'; Id = 1001; ProviderName = 'Windows Error Reporting' } -MaxEvents 20 -ErrorAction SilentlyContinue
+    if ($evt) {
+        foreach ($e in $evt) {
+            $msg = $e.Message
+            $code = ""
+            if ($msg -match "BugcheckCode\s*:\s*(\d+)") { $code = $Matches[1]; $hex = "0x{0:X8}" -f [int]$code; $name = Get-BugCheckName $hex }
+            Write-Report "  Time: $($e.TimeCreated)"
+            Write-Report "  Message: $($msg.Substring(0, [Math]::Min(500, $msg.Length)))"
+            if ($code) { Write-Report "  -> BugCheck: $hex ($name)" }
+            Write-Report ""
+        }
+    } else { Write-Report "  No Event 1001 (WER) records. Try running as Administrator." }
+} catch { Write-Report "  Read failed: $($_.Exception.Message)" }
+
+# 2. Kernel-Power Event 41 (includes BugcheckCode when present)
+Write-Report "" "[Important] Unclean shutdown (Kernel-Power Event 41)"
+try {
+    $evt41 = Get-WinEvent -FilterHashtable @{ LogName = 'System'; Id = 41; ProviderName = 'Microsoft-Windows-Kernel-Power' } -MaxEvents 20 -ErrorAction SilentlyContinue
+    if ($evt41) {
+        foreach ($e in $evt41) {
+            Write-Report "  Time: $($e.TimeCreated)"
+            if ($e.Properties -and $e.Properties.Count -ge 1 -and $e.Properties[0].Value) {
+                $code = $e.Properties[0].Value
+                $hex = "0x{0:X8}" -f [int]$code
+                $name = Get-BugCheckName $hex
+                Write-Report "  BugcheckCode: $hex ($name)"
+            }
+            Write-Report ""
+        }
+    } else { Write-Report "  No Event 41 records" }
+} catch { Write-Report "  Read failed: $($_.Exception.Message)" }
+
+# 3. Event 6008 - Unexpected shutdown
+Write-Report "" "Unexpected shutdown (Event 6008)"
+try {
+    $evt6008 = Get-WinEvent -FilterHashtable @{ LogName = 'System'; Id = 6008 } -MaxEvents 10 -ErrorAction SilentlyContinue
+    if ($evt6008) {
+        foreach ($e in $evt6008) {
+            Write-Report "  Previous shutdown: $($e.TimeCreated)"
+        }
+    } else { Write-Report "  No 6008 records" }
+} catch { Write-Report "  Read failed: $($_.Exception.Message)" }
+
+# 4. Minidump files
+Write-Report "" "Minidump files (C:\Windows\Minidump\)"
+$minidumpPath = "C:\Windows\Minidump"
+if (Test-Path $minidumpPath) {
+    $dumps = Get-ChildItem $minidumpPath -Filter "*.dmp" -ErrorAction SilentlyContinue | Sort-Object LastWriteTime -Descending
+    if ($dumps) {
+        foreach ($d in $dumps) {
+            $sizeKB = [Math]::Round($d.Length / 1KB, 1)
+            Write-Report "  $($d.Name)  |  $($d.LastWriteTime)  |  $sizeKB KB"
+        }
+    } else { Write-Report "  No .dmp files (ensure small memory dump is enabled)" }
+} else { Write-Report "  Minidump folder not found" }
+
+# 5. Full memory dump
+Write-Report "" "Full memory dump (C:\Windows\MEMORY.DMP)"
+$memDump = "C:\Windows\MEMORY.DMP"
+if (Test-Path $memDump) {
+    $f = Get-Item $memDump -ErrorAction SilentlyContinue
+    $sizeMB = [Math]::Round($f.Length / 1MB, 2)
+    Write-Report "  Exists: $($f.LastWriteTime) | $sizeMB MB"
+} else { Write-Report "  Not present (or full dump disabled)" }
+
+# 6. How to enable minidump (if not enabled)
+Write-Report "" "If no dumps appear"
+Write-Report "  Enable small memory dump: System Properties > Advanced > Startup and Recovery > Settings"
+Write-Report "  Set 'Write debugging information' to 'Small memory dump (256 KB)'"
+Write-Report "  Dump file: %SystemRoot%\Minidump"
+
+$Report | Set-Content -Path $ReportFile -Encoding UTF8 -NoNewline
+Write-Host "Report saved: $ReportFile" -ForegroundColor Green
--- a/查看系统温度.ps1
+++ b/查看系统温度.ps1
@@ -0,0 +1,43 @@
+# Read system thermal zones via WMI (if supported by your BIOS/driver)
+# Run as Administrator for best chance. Output saved to .txt in same folder.
+# If no data appears, use HWiNFO or Core Temp - see "Temperature monitoring guide" in this folder.
+
+$ReportDir = $PSScriptRoot
+$Timestamp = Get-Date -Format "yyyyMMdd_HHmmss"
+$LogFile = Join-Path $ReportDir "TemperatureLog_$Timestamp.txt"
+
+$lines = @()
+$lines += "Temperature check at $(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')"
+$lines += "Computer: $env:COMPUTERNAME"
+$lines += ""
+
+try {
+    $zones = Get-CimInstance -Namespace "root/wmi" -ClassName MSAcpi_ThermalZoneTemperature -ErrorAction Stop
+    if (-not $zones -or $zones.Count -eq 0) {
+        $lines += "No thermal zones reported (BIOS/driver may not expose temperature via WMI)."
+        $lines += "Use HWiNFO or Core Temp - see Temperature monitoring guide in this folder."
+    }
+    else {
+        $idx = 0
+        foreach ($z in $zones) {
+            $idx++
+            $kelvin10 = $z.CurrentTemperature
+            if ($null -eq $kelvin10 -or $kelvin10 -eq 0) {
+                $lines += "Zone $idx : Not supported or zero"
+                continue
+            }
+            $celsius = ($kelvin10 / 10.0) - 273.15
+            $lines += "Zone $idx : $([Math]::Round($celsius, 1)) C  (raw $kelvin10)"
+        }
+    }
+}
+catch {
+    $lines += "WMI read failed: $($_.Exception.Message)"
+    $lines += "Use HWiNFO or Core Temp - see Temperature monitoring guide in this folder."
+}
+
+$text = $lines -join "`r`n"
+$text | Set-Content -Path $LogFile -Encoding UTF8
+Write-Host $text
+Write-Host ""
+Write-Host "Log saved to: $LogFile" -ForegroundColor Green
--- a/清除Windows日志.ps1
+++ b/清除Windows日志.ps1
@@ -0,0 +1,46 @@
+# Clear Windows Event Logs - Run as Administrator
+# Clears Application, System, Security, Setup, and other logs
+
+if (-NOT ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
+    Write-Host "Need Administrator. Right-click -> Run as administrator." -ForegroundColor Red
+    exit 1
+}
+
+$mainLogs = @('Application', 'Security', 'System', 'Setup')
+$cleared = @()
+$failed = @()
+
+Write-Host "Clearing Windows Event Logs..." -ForegroundColor Cyan
+Write-Host ""
+
+foreach ($log in $mainLogs) {
+    try {
+        Clear-EventLog -LogName $log -ErrorAction Stop
+        $cleared += $log
+        Write-Host "  OK: $log" -ForegroundColor Green
+    } catch {
+        $failed += "$log : $($_.Exception.Message)"
+        Write-Host "  FAIL: $log - $($_.Exception.Message)" -ForegroundColor Yellow
+    }
+}
+
+Write-Host ""
+Write-Host "Clearing other logs via wevtutil..." -ForegroundColor Cyan
+$allLogs = wevtutil el 2>$null
+foreach ($log in $allLogs) {
+    if ($mainLogs -notcontains $log) {
+        $r = wevtutil cl $log 2>&1
+        if ($LASTEXITCODE -eq 0) {
+            $cleared += $log
+            Write-Host "  OK: $log" -ForegroundColor Green
+        } else {
+            $failed += "$log : $r"
+        }
+    }
+}
+
+Write-Host ""
+Write-Host "Done. Cleared: $($cleared.Count) logs." -ForegroundColor Green
+if ($failed.Count -gt 0) {
+    Write-Host "Failed: $($failed.Count) logs (some may be protected)." -ForegroundColor Yellow
+}
--- a/温控与EC传感器分析笔记.md
+++ b/温控与EC传感器分析笔记.md
@@ -0,0 +1,726 @@
+## 1. 背景与现象
+
+- **设备**：Google Kaisa（Acer CXI4 Chromebox，基于 Puff baseboard）  
+- **固件**：coreboot + Chrome EC  
+- **主要问题**：
+  - Windows 下曾出现热事件关机；
+  - EC 控扇仅依赖一颗板载热敏电阻，温度响应滞后于 CPU，风扇启动与拉满偏晚。
+
+本文整理 Puff/Kaisa 上 **温度传感器、EC 温控、DPTF 控扇** 的整体路径，并记录调试 DPTF FAND/\_FSL 时的关键发现。
+
+---
+
+## 2. 温度与 EC 的关系概览
+
+- **CPU/主机侧温度**：
+  - Linux：`/sys/class/thermal/thermal_zone*` 中的 `TCPU`、`x86_pkg_temp` 等，由 CPU/PCH 提供，不经过 EC。
+  - Windows：DPTF 通过 ACPI 热区（如 `\_SB.PCI0.TCPU`）取 CPU 温度。
+
+- **EC 侧温度**（Puff/Kaisa）：
+  - 只有 **1 路板载 thermistor**：
+    - ADC：`ADC_TEMP_SENSOR_1`（NPCX_ADC_CH0）
+    - 逻辑 ID：`TEMP_SENSOR_CORE`
+    - 读函数：`get_temp_3v3_30k9_47k_4050b`
+  - EC 每秒读这路 ADC，写入 EC memory map，对外通过 ACPI 暴露为 `TSR0`。
+
+**结论**：  
+目前板上可用的温感来源只有两类：CPU 自身温度 + EC 的一颗板载 thermistor，没有额外硬件温感。
+
+---
+
+## 3. EC 控扇链路（Puff/Kaisa）
+
+### 3.1 板级配置（`ec/board/puff/board.c` & `board.h`）
+
+- 温度枚举：
+
+```c
+enum temp_sensor_id {
+	TEMP_SENSOR_CORE,
+	TEMP_SENSOR_COUNT
+};
+```
+
+- ADC 与 `temp_sensors[]`：
+
+```c
+[ADC_TEMP_SENSOR_1] = {
+	.name = "TEMP_SENSOR_1",
+	.input_ch = NPCX_ADC_CH0,
+	.factor_mul = ADC_MAX_VOLT,
+	.factor_div = ADC_READ_MAX + 1,
+},
+
+const struct temp_sensor_t temp_sensors[] = {
+	[TEMP_SENSOR_CORE] = {
+		.name = "Core",
+		.type = TEMP_SENSOR_TYPE_BOARD,
+		.read = get_temp_3v3_30k9_47k_4050b,
+		.idx = ADC_TEMP_SENSOR_1,
+	},
+};
+```
+
+- EC 的温阈值与风扇曲线（`thermal_params[]`）：
+
+```c
+const static struct ec_thermal_config thermal_a = {
+	.temp_host = {
+		[EC_TEMP_THRESH_WARN] = 0,
+		[EC_TEMP_THRESH_HIGH] = C_TO_K(68),
+		[EC_TEMP_THRESH_HALT] = C_TO_K(78),
+	},
+	.temp_host_release = {
+		[EC_TEMP_THRESH_WARN] = 0,
+		[EC_TEMP_THRESH_HIGH] = C_TO_K(58),
+		[EC_TEMP_THRESH_HALT] = 0,
+	},
+	.temp_fan_off = C_TO_K(40),  // <40℃ 关风扇
+	.temp_fan_max = C_TO_K(60),  // ≥60℃ 满速
+};
+
+struct ec_thermal_config thermal_params[] = {
+	[TEMP_SENSOR_CORE] = thermal_a,
+};
+```
+
+### 3.2 通用 thermal 引擎（`ec/common/thermal.c`）
+
+- 每秒执行一次 `thermal_control()`：
+
+  1. 遍历所有温度传感器（这里只读 `TEMP_SENSOR_CORE`）：
+     ```c
+     for (i = 0; i < TEMP_SENSOR_COUNT; ++i)
+         rv = temp_sensor_read(i, &t);
+     ```
+  2. 根据 `thermal_params[i].temp_host[]` 与 `temp_host_release[]` 统计 WARN/HIGH/HALT，触发：
+     - `chipset_force_shutdown(CHIPSET_SHUTDOWN_THERMAL);`
+     - `throttle_ap(THROTTLE_ON, THROTTLE_HARD/SOFT, THROTTLE_SRC_THERMAL);`
+  3. 根据 `temp_fan_off` 和 `temp_fan_max` 计算该传感器需要的风扇百分比：
+     ```c
+     f = thermal_fan_percent(thermal_params[i].temp_fan_off,
+                             thermal_params[i].temp_fan_max,
+                             t);
+     fmax = max(fmax, f);
+     ```
+  4. 对所有风扇设置统一需求：
+     ```c
+     for (i = 0; i < fan_get_count(); i++)
+         fan_set_percent_needed(i, fmax);
+     ```
+
+**结论**：  
+在 “EC 自动控扇” 模式下，风扇完全由 EC 根据这路 thermistor + `thermal_a` 曲线驱动。
+
+---
+
+## 4. DPTF 与 EC 的桥接（ACPI/DPTF 侧）
+
+### 4.1 温度：TSR0..TSR4
+
+- coreboot 的 `ec_dptf_helpers.c` 为 DPTF temp participants 生成 `_TMP`：
+
+```c
+/* TSRx._TMP = EC0.TSRD(x) */
+acpigen_write_method_serialized("_TMP", 0);
+acpigen_emit_byte(RETURN_OP);
+acpigen_emit_namestring(acpi_device_path_join(ec, "TSRD"));
+acpigen_write_integer(tsr_index);  // 0..4
+```
+
+- `ec.asl` 中：
+
+```asl
+Method (TINS, 1, Serialized)
+{
+	Switch (ToInteger (Arg0)) {
+		Case (0) { Return (TIN0) }
+		Case (1) { Return (TIN1) }
+		...
+		Default  { Return (TIN0) }
+	}
+}
+
+Method (TSRD, 1, Serialized)
+{
+	Local0 = \_SB.PCI0.LPCB.EC0.TINS (Arg0)
+	/* 检查 TNCA/TNPR/TNOP/TBAD 省略 */
+	Local0 += \_SB.PCI0.LPCB.EC0.TOFS
+	Local0 *= 10     // 转为 1/10 K
+	Return (Local0)
+}
+```
+
+- Puff 上：只有 `TEMP_SENSOR_CORE` → `TIN0` → `TSR0`，其它 TSR1..TSR4 基本为空。
+
+### 4.2 风扇：TFN1 + FST/FSL + FAND
+
+根据 DPTF 规范，FAN participant（`TFN1`）需要提供：
+
+- `_FST`：返回 `{ Revision, Control, Speed }`；
+- `_FSL(level)`：设置 fan level/duty。
+
+Chrome EC 路径（`ec_dptf_helpers.c`）：
+
+- 写回包 `TFST`：
+
+```c
+/* TFST = { Revision, Control, Speed } */
+acpigen_write_name("TFST");
+acpigen_write_package(3);
+acpigen_write_integer(0); /* Revision */
+acpigen_write_integer(0); /* Control */
+acpigen_write_integer(0); /* Speed */
+acpigen_pop_len();        /* Package */
+```
+
+- `_FST` 实现大致为：
+
+```c
+/* _FST: TFST[1] = EC0.FAND; TFST[2] = FANx_RPM; return TFST */
+acpigen_write_method_serialized("_FST", 0);
+acpigen_write_store();
+acpigen_emit_namestring(acpi_device_path_join(ec, "FAND"));
+acpigen_emit_byte(INDEX_OP);
+acpigen_emit_namestring("TFST");
+acpigen_write_integer(1);  // Control
+...
+acpigen_write_store();
+acpigen_emit_namestring(acpi_device_path_join(ec, "FAN0")); // 实际 RPM 来源
+acpigen_emit_byte(INDEX_OP);
+acpigen_emit_namestring("TFST");
+acpigen_write_integer(2);  // Speed
+...
+acpigen_emit_byte(RETURN_OP);
+acpigen_emit_namestring("TFST");
+acpigen_pop_len();
+```
+
+- `_FSL(level)` 实现：
+
+```c
+/* _FSL(Arg0): Store(Arg0, EC0.FAND) */
+acpigen_write_method_serialized("_FSL", 1);
+acpigen_write_store();
+acpigen_emit_byte(ARG0_OP);
+acpigen_emit_namestring(acpi_device_path_join(ec, "FAND"));
+acpigen_pop_len();
+```
+
+其中 `FAND` 对应 EC ACPI RAM 中地址 `0x04`（`EC_ACPI_MEM_FAN_DUTY`），在 `ec_commands.h` 定义为：
+
+```c
+/* DPTF Target Fan Duty (0-100, 0xff for auto/none) */
+#define EC_ACPI_MEM_FAN_DUTY 0x04
+```
+
+ACPI 通过 `EC_ACPI_MEM_FAN_DUTY` 写入后，EC C 侧（`ec/common/acpi.c`）处理：
+
+```c
+case EC_ACPI_MEM_FAN_DUTY:
+	dptf_set_fan_duty_target(data);
+	break;
+```
+
+`dptf_set_fan_duty_target()` 实现（`ec/common/fan.c`）：
+
+```c
+/* 0-100% sets duty, out of range means let the EC drive */
+void dptf_set_fan_duty_target(int pct)
+{
+	int fan;
+
+	if (pct < 0 || pct > 100) {
+		/* 超出范围：交回 EC 自动控扇 */
+		for (fan = 0; fan < fan_count; fan++)
+			set_thermal_control_enabled(fan, 1);
+	} else {
+		/* 合法 0-100：按 duty 控扇，关闭 thermal 自动控扇 */
+		for (fan = 0; fan < fan_count; fan++)
+			set_duty_cycle(fan, pct);
+	}
+}
+```
+
+读取时，若处于 duty 模式，`dptf_get_fan_duty_target()` 返回 0–100，否则返回 -1，对应 FAND=0xff。
+
+**结论（非常重要）**：
+
+- 写入 **0–100**：DPTF 接管风扇，EC 用该 duty 控扇，thermal 自动模式被关闭；
+- 写入 **0xff 或越界值（<0 或 >100，例如 0x80）**：退回 EC 自动控扇模式，FAND 对外显示为 0xff。
+
+---
+
+## 5. 模式选择：EC 控扇 vs Windows DPTF 控扇
+
+### 5.1 EC 控扇模式（稳定默认）
+
+coreboot defconfig 中：
+
+```text
+CONFIG_MINIPC_EC_FULL_FAN_CONTROL=y
+CONFIG_DRIVERS_INTEL_DPTF_DISABLE_ACTIVE_FAN=y
+```
+
+- DPTF 风扇参与者被隐藏/禁用 Active Policy；
+- EC 在 `_REG` 时写 `FAND=0xFF`，明确进入自动模式；
+- 风扇完全由 EC thermal 引擎（第 3 节）驱动。
+
+适用：  
+- 无 Windows DPTF 驱动或不希望依赖 DPTF；  
+- 简化行为，只调一条 EC 曲线。
+
+### 5.2 Windows DPTF 控扇模式（实验/优化）
+
+coreboot defconfig 中：
+
+```text
+# CONFIG_MINIPC_EC_FULL_FAN_CONTROL is not set
+# CONFIG_DRIVERS_INTEL_DPTF_DISABLE_ACTIVE_FAN is not set
+CONFIG_DRIVERS_INTEL_DPTF_ECTST_FAND_DEBUG=y
+```
+
+- DPTF FAN（TFN1）暴露给 Windows；  
+- Active Policy 启用，DPTF 根据 CPU 温度 + TSR0 等决定何时 `_FSL(level)`；  
+- EC 通过 `dptf_set_fan_duty_target(level)` 接收 duty：
+  - 0–100：DPTF 覆盖；
+  - 0xff/越界：交回 EC 自动。
+
+**前提**：  
+Windows 中必须安装并启用 Intel DPTF 驱动（INT3400/INT3404 等设备正常工作），否则不会按策略调用 `_FSL()`。
+
+---
+
+## 6. ECT0 调试：为什么 `_FSL(0x80)` 后 FAND 一直是 0xff？
+
+在 Windows 下，使用 `ECT0._FST/_FSL` 调试 FAND（`logs.txt`）：
+
+```powershell
+[1] Current FAND from _FST:
+  FAND = 0x46          # 70%，说明曾经处于 duty 模式
+
+[2] Writing FAND via _FSL(0x80) ...
+
+[3] Read-back FAND after _FSL:
+  FAND = 0xff
+
+[4] 继续监视 _FST:
+  FAND 始终是 0xff
+```
+
+**结合第 4 节的实现：**
+
+- 0x80 = 128 > 100 → 按 `dptf_set_fan_duty_target()` 的语义，这是“越界值”：
+  - 进入 `pct < 0 || pct > 100` 分支；
+  - 调用 `set_thermal_control_enabled(fan, 1)`，**恢复 EC 自动控扇**；
+  - `dptf_get_fan_duty_target()` 返回 -1，对 ACPI 显示为 FAND=0xff。
+
+**正确结论**：
+
+- **FSL/FST → EC 的链路是通的**，只是你写入的是一个“退回自动”的值（>100），EC 正确地退出了 DPTF duty 模式；
+- `_FST` 一直看到 FAND=0xff，说明当前处于 “auto/none” 状态，而不是链路失效。
+
+**正确的测试方式**：
+
+- 要验证 DPTF/ECT0 控扇是否生效，应使用 **0–100** 的值：
+
+  ```powershell
+  ectest -acpi \_SB.ECT0._FSL 50   # 50%
+  ectest -acpi \_SB.ECT0._FST      # FAND 应为 0x32，且风扇转速有变化
+  ```
+
+- 要主动退回 EC 自动控扇，可以写 **0xff 或 >100**（例如 0x80）：
+
+### 13.7 用其他方法监控 DPTF 是否发送风扇控制信号
+
+除轮询 `\_SB.ECT0._FST` 看 FAND 是否随温度变化外，可用脚本 `Monitor_DPTF_Fan.ps1` 做两类监控（需管理员、ectest 可用）：
+
+| 模式 | 说明 |
+|------|------|
+| **check** | 检查本机是否有 DPTF/ESIF 服务、ACPI 设备 INT3404/INT3400、相关驱动，判断 DPTF 栈是否加载。 |
+| **poll** | 高频率轮询 `_FST`（默认每 200ms），将时间戳与 FAND 写入 CSV，持续一段时间（默认 60s）。对 CPU 加压时若 CSV 中 FAND 始终不变，可判断 DPTF 未通过 _FSL 写 FAND。 |
+| **watch** | 专用于**监控 INT3404 是否发送控扇信号**：轮询 `_FST`，仅在 FAND **发生变化**时在控制台打印（并写 CSV）。若加压过程中出现 “FAND changed: 0xff -> 0x50” 等，说明有对象（多为 INT3404/DPTF）写入了 _FSL；若始终无输出，则 INT3404 未写 _FSL 或 EC 覆盖了写入。 |
+| **etw** | 用 logman 采集 DPTF/ESIF 的 ETW（EsifLfEtwProvider 等），记录一段时间后 tracerpt 转 CSV。若已装 Intel DPTF 驱动，可查看是否有风扇/ACPI 相关事件。 |
+| **all** | 先 check，再运行 etw（按提示加压后回车停止），最后做 poll 并落盘。 |
+
+用法示例：
+
+```powershell
+.\Monitor_DPTF_Fan.ps1 -Mode check
+.\Monitor_DPTF_Fan.ps1 -Mode watch -PollSeconds 120 -PollIntervalMs 150   # 监控 INT3404 是否发控扇
+.\Monitor_DPTF_Fan.ps1 -Mode poll -PollSeconds 120 -PollIntervalMs 150
+.\Monitor_DPTF_Fan.ps1 -Mode etw
+.\Monitor_DPTF_Fan.ps1 -Mode all
+```
+
+结论解读：若 **poll** 阶段在负载下 FAND 始终不变，且 **check** 未见 DPTF 设备/服务，则当前系统未通过 DPTF 发送风扇控制信号；若 ETW 中有相关事件，可进一步对照 DPTF 文档看是否包含 _FSL 调用。
+
+- 要主动退回 EC 自动控扇，可以写 **0xff 或 >100**（例如 0x80）：
+  ```powershell
+  ectest -acpi \_SB.ECT0._FSL 0xff # 或 0x80 等 >100
+  ectest -acpi \_SB.ECT0._FST      # FAND 应回到 0xff
+  ```
+
+---
+
+## 7. 总结
+
+1. Puff/Kaisa 的 EC 只有一颗板载 thermistor（`TEMP_SENSOR_CORE`），所有 EC 自动温控与关机/限频都基于这一路。
+2. coreboot + Chrome EC 已经在 ACPI/DPTF 层实现了完整的 FAN 接口（TFN1._FST/_FSL）：
+   - `_FSL(level)` → 写入 `EC_ACPI_MEM_FAN_DUTY` → `dptf_set_fan_duty_target(level)`；
+   - `_FST()` → 回读当前 FAND 与实际 RPM。
+3. EC 明确定义了 fan duty 的语义：
+   - **0–100**：DPTF 直接指定 duty，EC 关闭 thermal 自动控扇；
+   - **0xff 或越界**：退出 DPTF duty 模式，交回 EC 自动控扇，FAND 显示为 0xff。
+4. Windows 下已枚举到 INT3400/INT3404：在设备管理器中分别显示为 **Intel(R) Dynamic Tuning Manager**（INT3400）与 **Intel(R) Dynamic Tuning Fan Participant**（INT3404），设备实例路径为 `ACPI\INT3400\0`、`ACPI\INT3404\0`，说明 **DPTF 风扇控制器栈与 ACPI 风扇设备都是存在的**。
+5. 实测轮询 `\_SB.ECT0._FST` 时，FAND 只在手动 `_FSL(x)` 时改变，负载/温度变化本身并不会让 DPTF 自动写入 FAND；结合 INT3404 存在但 FAND 不随温度变化，可以判断：当前固件/策略仍以 **EC 自动曲线为主控，DPTF 风扇参与者更多处于观察/可选控制状态**。
+6. “`_FSL(0x80)` 后 FAND 一直 0xff” 是因为 0x80>100，被 EC 解读为 “放弃 DPTF 覆盖、恢复 EC 自动”，而非链路未接通。
+7. 选择 EC 控扇还是 DPTF 控扇，只需在 coreboot defconfig 中切换：
+   - EC 控扇：`CONFIG_MINIPC_EC_FULL_FAN_CONTROL=y` + `CONFIG_DRIVERS_INTEL_DPTF_DISABLE_ACTIVE_FAN=y`；
+   - DPTF 控扇：两者都不设，并确保 Windows 中 DPTF 驱动工作正常。
+
+### 7.1 固件 20260224034907 配置确认（DPTF 控扇固件）
+
+- **固件**：`20260224034907` 目录下为 `coreboot_edk2-kaisa-mrchromebox_20260224.rom` 的构建产物，含 `.config`、`build.log`。
+- **.config 中与风扇控制相关的项**：
+  - `# CONFIG_MINIPC_EC_FULL_FAN_CONTROL is not set` → EC **非**全权控扇，主机可写 FAND；
+  - `# CONFIG_DRIVERS_INTEL_DPTF_DISABLE_ACTIVE_FAN is not set` → DPTF 主动风扇策略**开启**；
+  - `CONFIG_DRIVERS_INTEL_DPTF_ECTST_FAND_DEBUG=y` → 暴露 ECT0 调试设备，可读/写 FAND。
+- **结论**：该固件为 **DPTF 控扇** 配置，风扇应由 DPTF 通过 _FSL 写 FAND，EC 按 FAND 执行。
+- **与实测的差异**：在 Windows 下用 `Monitor_DPTF_Fan.ps1 -Mode watch` 观察，CPU 升温时 **FAND 从未变化**（无 “FAND changed”），说明 **DPTF 驱动/策略没有在按温度调用 _FSL**。问题在 **Windows/DPTF 侧**，不在固件是否为 DPTF 控扇。
+- **建议**：在 Windows 中检查电源/热管理是否有 “Intel DPTF” 或 “平台热管理” 并确认已启用；从 Microsoft Update Catalog 或 OEM 安装/更新 “Intel Dynamic Platform and Thermal Framework” 驱动后，再以 watch 模式观察负载下 FAND 是否变化。
+
+### 7.2 Windows 电源/热管理检查步骤（驱动已确认时）
+
+硬件与 DPTF 驱动（INT3400/INT3404、esifsvc）已确认正常时，若 FAND 仍不随温度变化，可逐项检查电源与热管理是否“关掉”了 DPTF 控扇：
+
+| 步骤 | 位置 | 检查内容 |
+|------|------|----------|
+| 1 | **设置 → 系统 → 电源** | 查看当前“电源模式”（平衡/最佳性能等）；部分机型在此有“热管理”或“Intel 图形/平台”相关项，确认未选“静音/省电”导致不拉高风扇。 |
+| 2 | **控制面板 → 电源选项 → 更改计划设置 → 更改高级电源设置** | 在列表中查找 **处理器电源管理**、**Intel**、**Thermal**、**平台热管理** 或 OEM（如 Acer）提供的“风扇/热管理”子项。若有“最大处理器状态”“散热方式”等，可先选“主动/积极散热”或提高最大状态，排除因电源计划限制导致 DPTF 不写 _FSL。 |
+| 3 | **设备管理器 → 系统设备 → Intel(R) Dynamic Tuning Fan Participant** | 属性 → 驱动程序：确认设备已启用、无感叹号；若有“电源管理”选项卡，可取消勾选“允许计算机关闭此设备以节约电源”（若存在），避免被省电关闭。 |
+| 4 | **OEM 自带软件** | 若装有 Acer Care、Lenovo Vantage、Dell Power Manager 等，在“性能/散热/风扇”类设置中查看是否有“静音模式”“禁用 DPTF”“自定义风扇曲线”等；若有且设为静音或禁用 DPTF，改为平衡/性能或启用 DPTF 后再用 watch 观察。 |
+| 5 | **当前电源方案** | 管理员 PowerShell：`powercfg /getactivescheme` 查看当前方案；必要时切换为“高性能”或“卓越性能”后再次运行 `Monitor_DPTF_Fan.ps1 -Mode watch`，看负载下是否出现 “FAND changed”。 |
+
+脚本 `Monitor_DPTF_Fan.ps1 -Mode check` 会输出当前电源方案及上述 1～4 的手动检查提示，便于逐项核对。
+
+这份笔记即为当前 Puff/Kaisa 上温控与 EC/DPTF 行为的整理，可作为后续调整 EC 曲线或 DPTF 策略时的参考。
+# 温控与 EC 传感器分析笔记
+
+本文档记录 Chromebox 刷 coreboot 后，Windows 热关机、Linux 温控、EC 温度源及 I2C 设备识别相关的有用信息。
+
+---
+
+## 1. 问题背景
+
+- **现象**：Windows 下出现热事件关机；EC 控扇仅依赖板载温度传感器，延迟与偏差大，导致风扇响应滞后。
+- **根因**：EC 只有一路 ADC 热敏电阻（“Core”），且该点滞后于 CPU 实际温度，Windows 负载/功耗较高时易触发过热关机。
+
+---
+
+## 2. 热区与 EC 的关系（Linux 视角）
+
+- **thermal_zone**（如 TCPU、x86_pkg_temp）：内核/CPU 热区，数据不经过 EC。
+- **EC 获取 CPU trip 的方式**：
+  - **硬件**：THERMTRIP#、PROCHOT# 等引脚由 CPU 拉低，EC 直接检测。
+  - **软件**：ACPI Notify（thermal zone critical 等）可通知 EC。
+- **直接连到 EC 的温度**：cros_ec 上报的 “Core” = EC 自己读的 ADC 热敏电阻；INT3400 与 EC 策略/关机链路相关。
+
+---
+
+## 3. Linux 温控 vs Windows DPTF
+
+| 项目       | Linux 温控              | Windows DPTF                    |
+|------------|--------------------------|---------------------------------|
+| 策略       | 内核 governor / thermald | OEM 策略引擎 + ACPI             |
+| 应用感知   | 一般无                   | 有（游戏/办公等不同策略）      |
+| 风扇       | 内核 cooling 或 fancontrol | 常由 EC 独管，DPTF 不控扇      |
+
+DPTF 未真正控扇常见原因：风扇权在 EC；或 OEM 未把风扇暴露给 DPTF；或 Windows 无 EC 风扇驱动。
+
+---
+
+## 4. EC 温度源（以 Puff 板为例）
+
+- **当前**：仅 **1 路** 温度 —— ADC 热敏电阻（`ADC_TEMP_SENSOR_1` → `TEMP_SENSOR_CORE`），读函数 `get_temp_3v3_30k9_47k_4050b`。
+- **无 I2C 温度传感器**：board.c 里 temp_sensors[] 只有上述 ADC 项；EC 的 I2C 上接的是 INA3221、PPC、TCPC、POWER、EEPROM 等，无温感芯片。
+- **增加温度源的可能**：若硬件有预留（空余 ADC 通道或 EC I2C 上接温感），可在 EC 源码里加 temp_sensor 配置；否则需改硬件。
+
+---
+
+## 5. 主机 I2C 与 EC I2C 是两套总线
+
+- **主机侧**（`i2cdetect -l` 的 i2c-0～i2c-11）：CPU/PCH 的 SMBus、i915 等，由 Linux 枚举；扫描用 `i2c_scan.sh`（调用 i2cdetect）。
+- **EC 侧**：EC 固件里 `i2c_ports[]` 定义的 GPIO_I2C0～I2C7，设备在 board.c 中定义。
+- **结论**：主机 I2C 扫描到的地址（如 0x08、0x44、0x52…）**不会**出现在 EC 的 board.c 里；EC 能扫的只是自己那几条总线。
+
+---
+
+## 6. 本机 EC I2C 扫描结果（ectool-cec i2cxfer）
+
+| EC Port | 扫到地址     | 用途/推断 |
+|---------|--------------|-----------|
+| 1       | 0x40         | 电流/功率类，非标准 INA3221 |
+| 3       | 0x2c 0x38 0x39 0x3d 0x3f 0x42 | 见下表 |
+| 5       | 0x20         | EEPROM (24cxx) |
+
+### Port 3 各地址识别摘要
+
+| Addr | reg 0x00 / 0x80 等 | 可能型号/类型 |
+|------|--------------------|----------------|
+| 0x2c | 0x77 0x79…；index/data 访问 | Nuvoton Super I/O / I2C 多功能（如 NCT5532D、NCT5577D、NCT38xx）；**可能带温度，需 index/data 读** |
+| 0x38 | 0x30 0x30 (ASCII) 等 | GPIO/IO 扩展或显示 |
+| 0x39 | 全 0 | 未初始化或空 |
+| 0x3d | 全 0 | 可能 SSD1306 或未初始化 |
+| 0x3f | 0x80 = 0x5A 0x5E | 某 PMIC/传感器厂商 Device ID；**可能带温度，需查 datasheet** |
+| 0x42 | 全 0 | 可能 INA3221 未使能或它用 |
+
+---
+
+## 7. 常见芯片 ID 参考（用于 ec_i2c_identify）
+
+- **0x80 = 0x54 0x49**：TI INA3221/INA219（电流/功率）。
+- **0x80 = 0x5A 0x5E**：某厂商 Device ID，多见于 PMIC/传感器，具体型号需查该厂商手册。
+- **0x2c 总线、首字节 0x77 等**：Nuvoton NCT55xx/NCT5577D/NCT38xx 等；访问多为 index/data，直接读“reg 0”未必对应真实寄存器。
+- **0x20 + 数据区大段 0xff**：常见 EEPROM (24c02 等)。
+- **0x38 读得 0x30 0x30**：常见 GPIO/IO 扩展（如 PCA9555）。
+- **0x3c/0x3d 全 0**：常见 SSD1306 等 OLED 未初始化。
+
+---
+
+## 8. 哪个可能是我们要找的温度传感器？
+
+- **首选候选：Port 3, 0x2c**  
+  Nuvoton NCT 系常带硬件监控温度；需在 EC 内按 **index/data** 协议和该芯片 datasheet 的温度寄存器 index 读取。
+
+- **次选候选：Port 3, 0x3f (0x5A5E)**  
+  可能是带温度通道的 PMIC/传感器；需找到对应 datasheet 确认是否有温度寄存器及地址/格式。
+
+- **其余**（0x40/0x42 INA 类、0x38 GPIO、0x39/0x3d、0x20 EEPROM）**不视为温度传感器**。
+
+---
+
+## 9. 脚本与工具
+
+| 脚本/命令 | 作用 |
+|-----------|------|
+| `linux_collect_sensors.sh` | 收集 Linux 下 thermal zone、hwmon、lm-sensors、ectool temps、dmesg、CPU 信息；报告存当前目录或 /tmp。 |
+| `i2c_scan.sh` | 主机侧 I2C 扫描（i2cdetect），扫 i2c-0～i2c-N。 |
+| `ec_i2c_scan.sh` | EC 侧 I2C 扫描，用 ectool-cec 的 i2cxfer 对指定 port 扫 0x08～0x77。**须用 ectool-cec**，系统 ectool 无 i2cxfer。 |
+| `ec_i2c_identify.sh` | 对指定 port:addr 读 reg 0x00/0x80/0xFE/0xFF/0x0F，并给出可能型号推断。 |
+
+### 使用注意
+
+- 脚本行尾须为 **LF**；若出现 `$'\r': 未找到命令` 等，执行：`sed -i 's/\r$//' 脚本名.sh`。
+- EC 扫描/识别需 **sudo**，且 **ECTOOL** 指向 ectool-cec，例如：  
+  `ECTOOL=/home/jack/bin/ectool-cec sudo ./ec_i2c_scan.sh`
+
+---
+
+## 10. 后续可做
+
+- 在 EC 源码中查 0x2c 对应芯片的 datasheet，用 **index/data** 读温度寄存器，并在 temp_sensor/thermal 里增加一路。
+- 若有 0x5A5E 对应型号的 datasheet，确认是否带温度通道及寄存器，再在 EC 中实现读取。
+- Windows 侧可先通过限 CPU 功耗/电源计划降低热负载，减轻 EC 单路温控滞后带来的热关机。
+
+---
+
+## 11. Puff/Kaisa 上增加一路温度传感器的可行性
+
+### 11.1 地址与硬件对应关系（Puff）
+
+- **I2C Port 3（TCPC0）上的 0x2c**：在 Puff 板为 **AN7447 TCPC**（`AN7447_TCPC0_I2C_ADDR_FLAGS = 0x2C`），不是独立温感芯片，不能当第二路温度源使用。
+- **0x3f**：同颗 AN7447 的 SPI 转 I2C 接口（`AN7447_SPI0_I2C_ADDR_FLAGS = 0x3F`），读到的 0x5A5E 等为 AN7447 相关，**不是**独立 I2C 温度传感器。
+- **结论**：当前 Puff 板 EC 可见的 I2C 总线上，**没有空闲的、可用的 I2C 温度传感器芯片**；笔记中“Port 3 的 0x2c/0x3f 可能是温感”的推断在本板不成立。
+
+### 11.2 可行方向
+
+| 方向 | 说明 |
+|------|------|
+| **A. 第二路 ADC 热敏电阻** | 若原理图有未用的 ADC 通道 + 热敏电阻，在 `board.h` 增加 `ADC_TEMP_SENSOR_2` 与对应 `enum`，在 `board.c` 的 `adc_channels[]`、`temp_sensors[]`、`thermal_params[]` 各加一项，并用现有 `get_temp_3v3_30k9_47k_4050b` 或对应 thermistor 读函数。 |
+| **B. 新增 I2C 温感芯片** | 若硬件在某一 I2C 总线上**新接**温感（如 TMP112/TMP432 等），需：该总线在 `i2c_ports[]` 中、地址不与现有设备冲突；在 EC 中启用对应 driver（如 `CONFIG_TEMP_SENSOR_TMP112`）、在 `board.h` 增加 `TEMP_SENSOR_xxx` 与 `TEMP_SENSOR_COUNT`，在 `board.c` 中增加 `temp_sensors[]` 与 `thermal_params[]`。 |
+| **C. 确认 0x5A5E 芯片** | 若某板型在其它 I2C 端口上有独立 0x5A5E 芯片且 datasheet 标明带温度寄存器，可为该芯片写专用 driver（index/data 或普通 I2C 读），再按 B 的方式挂到 `temp_sensors[]`。 |
+
+### 11.3 EC 侧增加一路温度传感器的实现步骤（通用）
+
+1. **board.h**  
+   - 增加 `enum adc_channel` 或 I2C 温感用的 `enum`（若用现有 driver，通常只需 `temp_sensor_id`）。  
+   - 在 `enum temp_sensor_id` 中增加新 ID（如 `TEMP_SENSOR_BOARD2`），并保证 `TEMP_SENSOR_COUNT` 正确。
+
+2. **board.c**  
+   - **ADC 热敏电阻**：在 `adc_channels[]` 增加一路 ADC；在 `temp_sensors[]` 增加一项（`name`、`type`、`read`、`idx`）；在 `thermal_params[]` 增加对应 `ec_thermal_config`。  
+   - **I2C 温感**：若为现有 driver（如 TMP112），在 `temp_sensors[]` 增加一项，`read` 指向 driver 的 `get_val`，`idx` 为 channel/index；同样在 `thermal_params[]` 增加一项。  
+   - 若需参与控扇：在 `setup_thermal()` 等逻辑中为新 sensor 选择/绑定 thermal table。
+
+3. **Kconfig / 构建**  
+   - 若用 I2C 温感 driver，在对应 board 的 `Kconfig` 或 `board.h` 中启用 `CONFIG_TEMP_SENSOR_xxx` 及该 driver 所需的 `I2C_PORT_xxx`。
+
+4. **thermal 策略**  
+   - 若希望新传感器参与风扇控制，需在 thermal 逻辑中把新 sensor 的读数纳入（例如与现有 `TEMP_SENSOR_CORE` 取 max，或单独阈值），并保证 `thermal_params[新ID]` 的 `temp_fan_off` / `temp_fan_max` 等已配置。
+
+### 11.4 小结
+
+- **不改硬件**：Puff 上仅能依赖现有 1 路 ADC 热敏电阻（Core）；无法在现有 I2C 设备（0x2c/0x3f 均为 AN7447）上“多出一路”温度传感器。  
+- **改硬件**：增加第二路 ADC 热敏电阻，或新接 I2C 温感芯片并接在已有或新增 I2C 总线上，再按 11.3 在 EC 中增加一项 temp_sensor 与 thermal 配置即可。
+
+---
+
+## 12. DPTF 控制风扇的可行性（Puff/Kaisa）
+
+### 12.1 固件侧已支持 DPTF 控扇
+
+- Puff 的 **DPTF 设计本来就是“DPTF 控扇”**：  
+  - `baseboard/acpi/dptf.asl` 中定义了 `DPTF_ENABLE_FAN_CONTROL`、DFPS（Fan Performance States）、DART（风扇对 CPU/TSR 的影响）。  
+  - Kaisa 的 `overridetree.cb` 里配置了 **Active Policy**：`policies.active[0]` = DPTF_CPU，`policies.active[1]` = DPTF_TEMP_SENSOR_0，即 **CPU 温度 + 板载温感（EC 上报）共同驱动风扇**；另有 `controls.fan_perf[]`、`fine_grained_control`、`step_size` 等。  
+  - 注释写明："Active Policy: CPU drives fan (DPTF controls via FAND)"。  
+- 风扇档位由 DPTF 通过 ACPI 写 **FAND** 下发给 EC，EC 按 FAND 驱动 PWM；固件表和 devicetree 已具备完整策略，**从固件角度看 DPTF 控扇是可行的**。
+
+### 12.2 当前 Kaisa 配置为何是 EC 控扇
+
+- 为规避“Windows 下无人写 FAND、风扇卡在固定转速”的问题，当前 defconfig 改为 **EC 完全控扇**：  
+  - `CONFIG_MINIPC_EC_FULL_FAN_CONTROL=y`：隐藏 DPTF 风扇设备，EC 在 _REG 时写 FAND=0xFF（EC 自动控扇）。  
+  - `CONFIG_DRIVERS_INTEL_DPTF_DISABLE_ACTIVE_FAN=y`：关闭 DPTF Active Policy，DPTF 不再写 FAND。  
+- 这样 Windows 即使没有 DPTF 驱动，EC 也会按自身 thermistor 控扇，避免“既不用 DPTF 也不写 0xFF”导致的卡死。
+
+### 12.3 若改为 DPTF 控扇
+
+| 项目 | 说明 |
+|------|------|
+| **固件配置** | 取消 EC 全权控扇、恢复 DPTF 控扇：`CONFIG_MINIPC_EC_FULL_FAN_CONTROL=n`（或不设），`CONFIG_DRIVERS_INTEL_DPTF_DISABLE_ACTIVE_FAN=n`。重新编译刷写后，DPTF 风扇设备可见，Active Policy 生效。 |
+| **温度源** | DPTF 使用 **CPU 温度**（\_SB.PCI0.TCPU）+ **EC 上报的板载温感**（TSR0 = TEMP_SENSOR_0，即 Core）。CPU 温度由 OS/驱动提供，响应比单路 EC thermistor 快，有利于提前拉高转速。 |
+| **Windows 依赖** | **必须安装 Intel DPTF 相关驱动**（如 INT3400、INT3404 等），否则 OS 不会根据 DPTF 表写 FAND，风扇仍可能不随负载变化。驱动可从 Microsoft Update Catalog 或 OEM 包获取。 |
+| **Linux** | 若使用内核 thermal + DPTF ACPI，需相应驱动/用户态配合写 cooling_device；常见做法仍是 EC 控扇或 fancontrol。 |
+
+### 12.4 小结
+
+- **DPTF 控扇在 Puff/Kaisa 上固件可行**：表与策略已就绪，只需改 defconfig 并确保 Windows 有 DPTF 驱动。  
+- **EC 控扇**：不依赖 Windows 驱动，适合“通用 Windows/无 DPTF”场景，但仅有一路板载温感，响应偏慢。  
+- **二选一**：要么 EC 全权控扇（当前配置），要么 DPTF 控扇（改配置 + 装 Windows DPTF 驱动），不可同时“DPTF 可见但不写 FAND、EC 也不写 0xFF”，否则会再现风扇卡死。
+
+---
+
+## 13. 监视 FAND 与“DPTF 未改变 FAND”的排查
+
+### 13.1 概念：DPTF 如何写风扇
+
+- DPTF 控扇时，OS 驱动调用 ACPI 方法 **\_FSL**（Fine-grained Set Level），ACPI 里把参数写入 EC 的 **FAND** 字段；EC 固件读 FAND 驱动 PWM。
+- **FAND**：EC ACPI 中 8 位字段（Fan Duty），在 `ec.asl` 的 ERAM 里；0xFF 表示 EC 自动控扇。
+- **\_FSL(Arg0)**：DPTF 风扇设备（如 TFN1）上的方法，实现为 `Store(Arg0, EC0.FAND)`。
+- 无法直接“hook \_FSL”，监视 \_FSL 的效果 = **轮询读取 FAND**，看其是否随负载/温度变化。
+
+### 13.2 如何监视 FAND
+
+- 固件开启 **CONFIG_DRIVERS_INTEL_DPTF_ECTST_FAND_DEBUG=y** 时，会暴露调试设备 `\_SB.ECT0`：
+  - `\_SB.ECT0._FST()`：读当前 FAND（与 TFN1._FST 一致）；
+  - `\_SB.ECT0._FSL(x)`：写 FAND（与 DPTF 写路径一致）。
+- **Windows**：安装 ec-test-app（OpenDevicePartnership ectest）后，在管理员 PowerShell 中轮询：
+  ```powershell
+  while ($true) {
+      ectest -acpi \_SB.ECT0._FST
+      Start-Sleep -Seconds 1
+  }
+  ```
+- **Linux**：若 ectool 支持读 FAND 或 EC RAM 中对应偏移，可写脚本轮询；或通过 cros_ec 接口读 thermal/风扇相关节点（视内核暴露而定）。
+
+### 13.3 “监视过 FAND，但 DPTF 似乎没有改变 FAND”的排查
+
+| 检查项 | 说明 |
+|--------|------|
+| **1. 当前是否为 DPTF 控扇配置** | 若固件为 **EC 全权控扇**（`CONFIG_MINIPC_EC_FULL_FAN_CONTROL=y` 且 `CONFIG_DRIVERS_INTEL_DPTF_DISABLE_ACTIVE_FAN=y`），DPTF 风扇设备被隐藏（_STA=0），Windows **不会**调用 \_FSL，FAND 仅由 EC 在写 0xFF 后按自身 thermistor 变化。此时“DPTF 没改 FAND”是预期行为。若要验证 DPTF 控扇，需先改为 DPTF 控扇配置并重新刷写。 |
+| **2. Windows 是否识别 DPTF 设备** | 设备管理器中查看是否有 **Intel Dynamic Platform and Thermal Framework** 或 ACPI 下的 **INT3400、INT3404** 等。若无 INT3404/DPTF 风扇设备，说明驱动未加载或 ACPI 未暴露，DPTF 不会写 FAND。 |
+| **3. 是否安装 DPTF 驱动** | 从 Microsoft Update Catalog 搜索 “Intel DPTF” 或 “Dynamic Platform Thermal”，或从 OEM（如 Acer）下载该机型的 DPTF/热管理驱动并安装。未安装时 OS 不会根据 DPTF 表调用 \_FSL。 |
+| **4. 电源/热管理策略** | Windows 电源选项中是否有“Intel DPTF”或“平台热管理”相关项；部分 OEM 软件会关闭 DPTF 控扇或固定为静音策略，导致不写 FAND。可切换电源方案（平衡/高性能）后再观察 FAND。 |
+| **5. 负载下观察** | 在确认固件为 DPTF 控扇、且设备管理器中有 INT3404 的前提下，对 CPU 施加负载（如压力测试），每隔数秒读一次 `\_SB.ECT0._FST`。若 FAND 始终不变，可判断为 DPTF 驱动未调用 \_FSL 或策略未生效。 |
+
+### 13.4 小结
+
+- 监视 \_FSL = 轮询读 FAND（通过 ECT0._FST 或等效接口）。
+- FAND 不变时：先确认是 **EC 控扇** 还是 **DPTF 控扇** 的固件；若为 DPTF 控扇则检查 Windows 是否安装并加载 DPTF 驱动、INT3404 是否存在、电源/热管理策略是否启用 DPTF 控扇。
+
+### 13.5 如何检查 \_SB.ECT0._FST 是否暴露给系统
+
+`\_SB.ECT0` 仅在固件开启 **CONFIG_DRIVERS_INTEL_DPTF_ECTST_FAND_DEBUG=y** 时存在；未开启则 ACPI 里没有该设备，无法读 _FST。
+
+**方法一：直接尝试执行（最直接）**
+
+- **Windows**：安装 [ec-test-app](https://github.com/OpenDevicePartnership/ec-test-app)（ectest），在**管理员** PowerShell 中执行：
+  ```powershell
+  ectest -acpi \_SB.ECT0._FST
+  ```
+  - 若返回数值（如 FAND 0–255）→ 已暴露。
+  - 若报错 “object not found” / “method does not exist” / 无法解析路径 → 未暴露或固件未开上述 CONFIG。
+
+- **Linux**：用 ACPI 调试接口（需 root）：
+  ```bash
+  # 若内核有 ACPI 调试，可尝试（部分内核未启用）
+  echo '\_SB.ECT0._FST' > /sys/kernel/debug/acpi/custom_method
+  cat /sys/kernel/debug/acpi/custom_method
+  ```
+  或使用 **acpi_call** 等模块/工具调用 ACPI 方法（若已安装）。
+
+**方法二： dump DSDT/SSDT 看是否有 ECT0 与 _FST**
+
+- **Windows**：
+  1. 用 [SSDTTime](https://github.com/corpnewt/SSDTTime) 选 “Dump DSDT” 得到 DSDT.aml；或用 [ACPICA acpidump](https://acpica.org/downloads/binary-tools)：`acpidump -b -n DSDT` 得到 DSDT.dat（改名为 DSDT.aml）。
+  2. 用 [iasl](https://acpica.org/downloads/binary-tools) 反编译：`iasl -d DSDT.aml`，得到 DSDT.dsl。
+  3. 在 DSDT.dsl 中搜索 `ECT0`、`_FST`：若在 `Scope (\_SB)` 下存在 `Device (ECT0)` 且其内有 `Method (_FST, ...)`，则固件已暴露该对象（是否可用还取决于 _STA 等）。
+
+- **Linux**：
+  ```bash
+  sudo cat /sys/firmware/acpi/tables/DSDT > DSDT.aml
+  iasl -d DSDT.aml
+  grep -n "ECT0\|_FST" DSDT.dsl
+  ```
+
+**方法三：设备/驱动侧（辅助）**
+
+- **Windows**：设备管理器中查看 ACPI 设备列表，是否有与 “ECT” 或 “DPTF ECT” 相关的设备（名称因 OEM 而异，不一定叫 ECT0）。
+- 若固件未开 `CONFIG_DRIVERS_INTEL_DPTF_ECTST_FAND_DEBUG`，DSDT 中不会出现 ECT0，方法一、二都会得到“未暴露”的结论。
+
+### 13.6 实测：ECT0.\_FSL 写入未生效的情况
+
+- 环境：当前这台 Chromebox 刷入的 coreboot 配置为 **EC 全权控扇**（推测存在 `CONFIG_MINIPC_EC_FULL_FAN_CONTROL=y` 之类），同时打开了 DPTF ECT 调试接口（`CONFIG_DRIVERS_INTEL_DPTF_ECTST_FAND_DEBUG=y`）。  
+- 实测命令：
+
+  ```powershell
+  # 1）读当前 FAND
+  ectest -acpi \_SB.ECT0._FST
+  # Argument[1] = 0xff （EC 自动控扇）
+
+  # 2）写入 0x80
+  ectest -acpi \_SB.ECT0._FSL 0x80
+
+  # 3）再读
+  ectest -acpi \_SB.ECT0._FST
+  # Argument[1] 仍为 0xff
+  ```
+
+- 同样逻辑用 `Test_ECT0_FST_FSL.ps1` 自动化验证时，效果一致：  
+  - `[1] Current FAND from _FST:  FAND = 0xff`  
+  - `[2] Writing FAND via _FSL(0x80) ...` 执行成功，ACPI 返回 Arg0=0x80；  
+  - `[3] Read-back FAND after _FSL:  FAND = 0xff`，后续轮询 `_FST` 仍为 0xff。
+
+**对 `_FST/_FSL` 返回值的具体解读：**
+
+- **[1] `_FST` = 0xff**  
+  - `_FST` 返回包里的 `Argument[1] = 0xff`，表示 EC 侧 **当前 FAND=0xFF**，即“自动控扇模式”。
+- **[2] `_FSL(0x80)` 返回 0x80**  
+  - 这里的 `Argument[0] = 0x80` 只是这次 `_FSL` 调用把参数“原样回显”，说明 ACPI 方法被成功执行，**并不等于 EC 里的 FAND 已经变成 0x80**。
+- **[3] 再次 `_FST` 仍然 0xff**  
+  - 再读 `_FST` 时 `Argument[1]` 还是 `0xff`，说明 **EC 看到的 FAND 一直没有从 0xFF 变成 0x80**，要么 `_FSL` 根本没写到 EC.FAND，要么写了但被 EC 逻辑立即覆盖回 0xFF。
+- **[4] 持续监控 `_FST` 也一直是 0xff**  
+  - 说明在一段时间内 FAND 从未被真正设为 0x80，EC 自始至终都工作在自动控扇模式。
+
+**结论（就当前固件配置）：**
+
+1. 虽然 ACPI 中存在 `\_SB.ECT0._FST / _FSL`，但 `_FSL` 调用并**没有真正改掉 EC 侧的 FAND 字段**；  
+2. 更可能的实现是：coreboot 的 ACPI 里为调试方便加了 `_FST/_FSL` 方法，但在 EC 全权控扇配置下，`\_FSL` 要么只是“回显参数”（`Return(Arg0)`），要么即便临时写入 FAND，也被 EC 策略立即覆盖回 0xFF；  
+3. 因为 FAND 始终为 0xFF，EC 始终工作在“自动控扇”模式，DPTF/ECT0 这条路径**实际处于旁路状态**。
+
+---
+
+*文档由分析过程整理，便于后续改 EC 或排查温控时查阅。*
+### 13.6 实测：ECT0._FSL 写入 0x80 后 FAND 始终为 0xFF 的根因
+
+- 环境：当前 Chromebox 上已启用 DPTF + ECT0（`CONFIG_DRIVERS_INTEL_DPTF_ECTST_FAND_DEBUG=y`），通过 `ECT0._FST/_FSL` 读写 FAND。  
+- 实测命令（节选自 `logs.txt`）：
				`@@ -0,0 +1 @@`
				`30a2421f4faf288d02063c4adecfabefe54a1894 coreboot_edk2-kaisa-mrchromebox_20260224.rom`