I've got a 3070 Ti rig that I've been using for quite a while, and I've been extremely satisfied with its performance. I get incredibly smooth framerate consistently on every game I play, but as of tonight, that is not the case. My PC has been going through this cycle of "5 minutes regular performance, 5 minutes of terrible performance", where in the "terrible performance" half of the cycle, the framerate is ABSURDLY bad, like if I had to guess, maybe 1 frame every few seconds. I'm pretty sure my drivers are up to date, and I don't know WHAT could have changed between using it yesterday and using it today, since yesterday it was performing completely normal. I tried applying a Windows update that I had been putting off as well, but alas, that did nothing either. Feels like it might've even made it worse. My task manager shows my GPU usage at 100% whenever my performance is terrible, and it shows it really low (20-40%, depending on the game), when performance is really high. Even in graphically intense games such as Mordhau, I'd normally get a consistent ~75 fps, but now every 5 minutes it seems my frames will drop to ~0.5 fps for about 5 minutes. I've checked all my cables, and I know it's not a power issue because my PSU has something like 200 watts more than I actually need. I also know it's not heat, because my GPU stays somewhere around 40-50c while gaming, even when the performance crumbles. I'm honestly stumped and would appreciate any help that could be offered.