A strange problem I've had for months and have not found a fix whenever I search around. It seems a lot of people have had this happen but I haven't found anyone with my unique situation. After being in game for usually 20 minutes or so, sometimes maybe a little longer, I get a sudden loss of monitor signal (screen goes black, light turns orange) and my GPU fans go to a loud constant 100% speed. Ctrl+Shift+Win+B does nothing after this happens (restart video driver). This has only ever happened in older games, specifically Team Fortress 2 and Far Cry 2. I have played GTA V, Valheim, Mad Max, Horizon Zero Dawn and more for hours without ever having the issue. I watched temps and voltages with HWMonitor while playing Far Cry 2 and they stay completely fine, but I also don't know how these could be the issue since newer games don't cause the problem.
Things I've tried that didn't fix it:
I tried older drivers but not extremely old because I think it would cause worse performance on my already sub-par GPU in the newer games that play fine
I opened my GPU and dusted it and replaced the thermal paste
Specs:
Windows 10 64 bit
ROG Strix Z370-E Gaming
i7-8700k @ 4.0GHz
16GB Corsair Vengeance 3000mhz
EVGA GTX 770 2GB SC
620W Antec HCG
1TB WD HDD and 120GB Samsung 840 SSD
Things I've tried that didn't fix it:
I tried older drivers but not extremely old because I think it would cause worse performance on my already sub-par GPU in the newer games that play fine
I opened my GPU and dusted it and replaced the thermal paste
Specs:
Windows 10 64 bit
ROG Strix Z370-E Gaming
i7-8700k @ 4.0GHz
16GB Corsair Vengeance 3000mhz
EVGA GTX 770 2GB SC
620W Antec HCG
1TB WD HDD and 120GB Samsung 840 SSD