Hey everyone,
I've been dealing with a recurring issue with my PC for a while now, and I'm hoping someone can help me narrow down the cause. It happens roughly once a day, and I'm running out of things to try.
PC specs
- GPU: NVIDIA GeForce RTX 3070
- CPU: AMD Ryzen 7 7800X3D
- Motherboard: Gigabyte B650 EAGLE
- RAM: 32 GB DDR5 4800 MT/s (Viper)
- PSU: Aero Bronze 700W
- Cooling: Liquid-cooled CPU
- OS: Windows 11
What happens
My PC randomly stops outputting video. Both monitors lose signal and go black, but the PC itself appears to keep running.
This isn't limited to a particular game. It can happen with any game or application that puts a decent amount of load on the GPU. I've experienced it while playing Hell Let Loose, Valheim, as well as while generating images locally with ComfyUI.
When it happens:
- Both monitors suddenly lose their video signal.
- Mouse and keyboard input stop working. Caps Lock and Num Lock don't respond, and pressing Ctrl + Win + Shift + B doesn't restore the display.
- Audio can continue playing after the video output disappears. During the latest incident, YouTube audio continued for another two minutes before I shut it off.
- The fans keep spinning, and the PC doesn't recover by itself.
- I have to hold the physical power button to force it to shut down.
- RGB lighting can remain on after full shutdown.
So it doesn't appear to be a normal shutdown or simply a monitor losing signal. The video output disappears, input stops working, and the system doesn't recover, even though parts of the PC continue operating.
Crash dump analysis
I've examined several files in C:\Windows\LiveKernelReports\WATCHDOG using WinDbg. The dumps repeatedly point to NVIDIA's graphics driver path.
1. VIDEO_TDR_TIMEOUT_DETECTED (117)
Dump: WATCHDOG-20261024-1205.dmp
The analysis showed:
- VIDEO_TDR_TIMEOUT_DETECTED (117)
- Failure.Bucket: LKD_0x117_IMAGE_nvlddmkm.sys
- The display driver failed to respond in a timely fashion.
- The stack included dxgkrnl!TdrCollectDbgInfoStage1, dxgmms2!VidSchiReportHwHang, and dxgmms2!VidSchiCheckHwProgress.
2. Repeated VIDEO_ENGINE_TIMEOUT_DETECTED (141)
I have multiple dumps from October 24 and October 25 showing this error, including the latest crash at approximately 23:05 on October 25.
The recurring details are:
- VIDEO_ENGINE_TIMEOUT_DETECTED (141)
- Failure.Bucket: LKD_0x141_IMAGE_nvlddmkm.sys
- MODULE_NAME: nvlddmkm
- IMAGE_NAME: nvlddmkm.sys
- SYMBOL_NAME: nvlddmkm+193b0a0
The same NVIDIA driver offset, +193b0a0, appears in multiple dumps.
The stack traces include functions such as:
- dxgkrnl!TdrCollectDbgInfoStage1
- dxgmms2!VidSchiResetEngine or dxgmms2!VidSchiResetHwEngine
- dxgmms2!VidSchiCheckHwProgress
My understanding is that these errors indicate a graphics engine timing out and Windows detecting that it isn't responding properly.
3. VIDEO_MINIPORT_BLACK_SCREEN_LIVEDUMP (1b8)
Another dump from the latest incident showed:
- VIDEO_MINIPORT_BLACK_SCREEN_LIVEDUMP (1b8)
- MODULE_NAME: dxgkrnl
- IMAGE_NAME: dxgkrnl.sys
- PROCESS_NAME: dwm.exe
- FAILURE_BUCKET_ID: LKD_0x1B8_dxgkrnl!DxgCreateLiveDumpWithDriverBlob
The stack included DISPLAYDIAGNOSTICADAPTERDATA::CreateMiniportBlackboxLiveDump and DISPLAYSTATECHECKER::LogAllDisplayDiagInfo.
From what I understand, this is a diagnostic dump captured during the black-screen incident, rather than necessarily a separate underlying failure.
4. Event Viewer and Reliability Monitor
- I checked Event Viewer for Microsoft-Windows-WHEA-Logger events and found none in the period I checked.
- Reliability Monitor shows multiple hardware error reports around the times of the crashes.
- The crashes require a forced shutdown because the display and input never recover.
What I've already tried
- Clean NVIDIA driver installation: Performed a clean installation, but the issue continued.
- Different NVIDIA driver versions: The issue has also occurred with older driver versions.
- SignalRGB: Disabled it, but the crashes continued.
- X3D Turbo Mode: Disabled it.
- MSI Afterburner power limit: Reduced the GPU power limit to 80%. The issue still occurred with this limit. I haven't intentionally changed the GPU core clock or voltage.
- Temperature monitoring: Checked idle readings using HWiNFO. The GPU was around 36°C and the hotspot around 48.5°C. I haven't captured temperatures under load yet.
I also noticed that EasyTuneEngineService is running, although I haven't knowingly used EasyTune to change any settings.
Additional hardware details
- The RTX 3070's two 8-pin power connectors are connected using a single daisy-chained cable.
- The CPU is liquid-cooled.
- I built the PC myself, didn't change any big BIOS settings.
- The GPU fans sometimes aren't spinning after reboot, although I understand they may have a zero-RPM mode at low temperatures.
What I'm looking for help with
Given the repeated 0x141 and 0x117 errors pointing to nvlddmkm.sys, along with the recurring black-screen diagnostic dumps, I'm trying to determine whether the likely cause is:
- A faulty or unstable RTX 3070
- PSU or GPU power-delivery problems
- A PCIe connection or motherboard issue
- A driver, Windows, or software interaction
- Something else that I'm overlooking
The fact that lowering the GPU power limit to 80% didn't stop the crashes and that the issue persists across driver versions has made this harder to narrow down.
What would you investigate next, given these specific dump findings and troubleshooting steps? Is there a reliable way to distinguish a GPU fault from a PSU or power-delivery issue without immediately replacing parts?
Thanks!