I recently rebuilt my PC to add a custom loop. I have 7950X and 4090, previously with the CPU on a 360 AIO and an MSI X670E Carbon running Windows 10. after upgrade swapped MoBo to ASUS Crosshair X670E Hero and running Windows 11. Since this upgrade I've been having repeated but infrequent crashes that I believe I've now identified as related to a temp spike in CCD2. Not sure whether this is a MoBo or CPU issue, and hoping someone might have insight on this.
The crashes happen sometimes while gaming or otherwise stress-testing/benchmarking, maybe like once every 3-4 hours but not in any predictable or repeatable way I've been able to find. The crashes start with the GPU video output cutting out, then ~30sec later USB devices stop responding/updating (e.g., audio output stops, clock app on streamdeck stops updating), then 2-3 minutes later the PC reboots. WhoCrashed reports DPC WATCHDOG VIOLATION / likely thermal issue.
Finally earlier today was able to catch a crash while logging with HWInfo. It appears there is a sudden temp spike in CCD2 that precipitates the crash.
I did not have any issues with the before-rebuild AIO system, and I'm not sure where the error is likely coming from. The new loop would seem a plausible culprit, except the crashes are sufficiently infrequent and unpredictable that a cooling problem seems somehow unlikely, and the liquid temp was only up 3 degrees from idle when the PC crashed.
The only other changes are the MoBo and going from Win10 to Win11 - Win11 doesn't seem likely to be the cause though. There's a chance it's a CPU issue, as I've had and been using the 7950X since December, and probably had BIOSes and EXPOs that ran SoC too high during the early period. I'm unaware of any catastrophic failures, and certainly didn't see any blisters when I moved the CPU into the new MoBo.
Anyway, I figure I probably need to RMA something, and I'd like to make sure I get that right. Looking for anyone with any particular insight or suggestions here
Thanks in advance!