Consistent LiveKernelEvent 141 errors causing game crashes

Hello,

I have been experiencing frequent LiveKernelEvent 141 errors sometimes accompanied by 117, and occasionally 1a8 and 1b8. My system is only about a year old, with the exception of a used 2080ti that I believe is causing the problems. I have tried seemingly everything I can find here in the forums about similar issues, but it hasn't worked for me and I would appreciate help in troubleshooting the problem.

System specs:

Win 11 Pro

AMD Ryzen 5 9600X

B850M Aorus Elite Wifi6e Ice

2x16gb Corsair Vengeance

2080ti FE

Corsair RM750x PSU

Ultrawide 1440p 144hz monitor

I have done many gpu driver reinstalls with DDU, including rolling back drivers or updating to latest. Tried both HDMI and DP cables. Gpu is powered by two separate PCIe cables. Uninstalled MSI Afterburner. Disabled MPO (I think). Manually set BIOS PCI speed to Gen 5, and then Gen 3 (2080 supports gen 3). Updated gpu bios with the nvflash program. Gpu voltage never went below 11.991v according to hwinfo even during a crash. Performed SFC and DISM commands, as well as windows memory check.

What is interesting is that this problem only appears at low to moderate load, and never during any benchmarks/stress tests/error checks. It is most reproducible by playing modded Minecraft, which crashes with exit code -1073740791. I thought it may be due to heat since the card is pretty old and the hotspot averages 15C over the gpu temp, but again, high stress games or programs don't cause the crash. When it crashes, the screen goes black (occasionally red), and my second monitor connected to integrated graphics freezes. After about 30 seconds, the screens flash and come back on, and the game will have crashed.

At one point I tested swapping in an old Radeon 6870 I had laying around, and after finding the right drivers, it seemed to perform fine without any crashes (albeit extremely slow and choppy). It seems like the problem has to be with the 2080 or the nvidia drivers.

I can provide log files if requested, I don't really know how to read them to find out what is the underlying problem. I am hoping it is not a gpu hardware failure and is unfixable as I don't have the budget for a new card right now.

Any help is appreciated!