So here my problem, my parents took away my computer for a while and kept it in a dusty closet. now when i play metro last light or any game in general, my GPU over heats. I tried lowering the graphics setter but nothing would change. i would constantly sit at 20 fps. i saw that my HDD was at around 100% so i turned off page file to put more work on my RAM. i tried cleaning my gtx 660 but nothing really changed. i even opened it up and tried to look for dust but there was none to clean yet it still overheats.i even put on a fan curve to turn the fans up to keep the gpu cool yet i STILL get low fps. is it my CPU? plz help
specs
Windows 8 Pro
Intel Core i7 3770 CPU 3.40 GHz
8.00 GB of installed memory
Nvidia GTX 660
specs
Windows 8 Pro
Intel Core i7 3770 CPU 3.40 GHz
8.00 GB of installed memory
Nvidia GTX 660