I made a thread here http://www.mmo-champion.com/threads/...to-help-me-out
but basically it's an old GTX660.
So this is a continuation. I cleaned my PC as best as I could. And then tried Overwatch and it seemed to help a lot. My temp was around 70-75ish if I recall. Now today I come back and try to play again and it gets too hot again. While it didn't get 90C+ instantly, it was around high 80s. Why such a drastic difference when nothing has really changed?
I also wasn't really able to clean the fan on my powersupply. Could that be why? I believe this could be the real problem. I used to play games and would not have any sort of problems. I believe my fan would come on sometimes, and not others. So it's possible I've had this problem for a while and never noticed.