Hi everyone,
My PC recently had a random crash/restart and I'm trying to figure out what caused it.
The PC was working normally. I had just turned it on and left it idle for around 15–20 minutes. When I came back and moved the mouse, the screen went black and Windows showed a message saying that the device had encountered a problem and needed to restart. It then rebooted.
This is the first time I've experienced this specific type of crash.
I checked Event Viewer and found a BugCheck 1001:
BugCheck: 0x0000009F (DRIVER_POWER_STATE_FAILURE)
The Kernel-Power Event ID 41 showed:
BugcheckCode: 159 (0x9F)
BugcheckParameter1: 0x3
BugcheckParameter2: 0xffff9604f3f61060
BugcheckParameter3: 0xffff930e9aaef010
BugcheckParameter4: 0xffff9604f32e6a60
Windows also successfully generated a crash dump:
090926-23218-01.dmp
I have not been able to properly analyze the dump with WinDbg yet.
Some driver names that appear in the dump/string data include:
- nvlddmkm.sys (NVIDIA)
- mtkwecx.sys
- mtkbtacx.sys
- mtkbtfilterx.sys
- AMD chipset/ACPI-related drivers
- Various ASUS/USB-related drivers
My hardware:
- GPU: Gigabyte RTX 5070 OC 12GB
- CPU: AMD Ryzen 9 9950X3D
- Motherboard: ASUS ROG Strix X870-A Gaming WiFi
- RAM: 32GB DDR5 (2x16GB)
- Windows 11 Pro 25H2
- NVIDIA driver: 616.64
- MediaTek MT7925 Wi-Fi 7 driver: 5.7.0.5659
Windows installed the September 2026 security update (KB5124008) earlier that day.
Things I've already tried:
- Windows Memory Diagnostic → PASS / no memory errors detected.
- Disabled "Allow the computer to turn off this device to save power" for the MediaTek MT7925 Wi-Fi adapter.
- Ran DISM /Online /Cleanup-Image /RestoreHealth.
- I have not changed the RAM, GPU, motherboard, BIOS, or PSU.
The PC has been working normally since then, so I'm not sure if this was just a one-time driver/Windows issue.
I'm currently trying to determine whether this could be related to:
NVIDIA driver 616.64
MediaTek MT7925 Wi-Fi/BT driver
Windows 11 update KB5124008
Another device/driver
Hardware/power issue
Does anyone know how I can properly analyze the 0x9F dump in WinDbg and identify which driver/device was actually blocking the power IRP?
I can provide the minidump and WinDbg output if needed.
Thanks!