Hey folks, turning here for desperation help.
Windows 10 64bit
GTX 1080 TI
Over the past week or so, nearly all 3D games I start will run for a couple of minutes (rarely more than 2-3) before getting a screen freeze and crash with the D3D Device Lost (HUNG) error a short while later. Windows does not crash, I can just tab out and kill the process, no restart required, no BSODs. Going back roughly a week or so I only had a single crash (freeze) once every hour or so if I was unlucky, but over the past 2 days it has escalated to being every couple of minutes, making most of my games unplayable.
Now! … 2 weeks ago I did a Windows re-install because my old installation was 2+ years old and was due for a cleanup. Take note that I had NEVER had any crashing issues during those years, my system was super stable and no games ever crashed (like almost literally, nothing ever crashed). The issue slowly started after the re-install I did roughly 2 weeks ago. I've tried re-installed Windows 3 times tonight in hopes it was just a faulty installation, I even tried 2 different copies of Windows, but the result is always the same. 2-3 minutes in, games crash, regardless of drivers or settings or anything else.
When just operating windows normally there are no issues what-so-ever. It is strictly tied to running 3D games - so far Killing Floor 2 + the SDK, Deep Rock Galactic, Borderlands 2 and Doom 2016 have been tested and they all freeze within minutes. They all ran perfectly fine only 2 weeks ago on my old Windows installation.
I'm not sure what could have caused it, although I did turn on Asus Optimizer in BIOS roughly a week ago I believe, which I believe is some form of overclocking. I think that's roughly when the crashes slowly started to happen (not entirely sure as I didn't pay much attention to the timing as I wasn't expecting this to happen.) I've since reverted the BIOS overclock back to normal but the problem still persists.
So I searched around the net for the issue and after a long while I saw some forum thread talking about Boost 3.0 and clock speeds. That prompted me to monitor my GPU while running games, and the clock speeds get boosted all the way to 2000 MHz, then drops down to around 1930-1970 MHz. Now again, I don't know if this is normal or not, and I did not deliberately overclock my GPU. I'm not sure if the Asus BIOS boost thing could have done so - nor how to revert the GPU boost if that is the case.
Another thing to note is that my GPU temperatures are seemingly fine. Even at 2000 MHz running at load the temperature stays around 62-65 degree Celsius at the time of crash, so it doesn't seem like overheating problems?
I'm pretty damn stumped as to what to do and even more so as to what has actually happened?
Any feedback would be greatly appreciated as my PC currently is effectively useless for gaming, which is... not desirable.