Ga-990FXA-UD3 mb/Sapphire HD7850 OC edition/AMD 8120 8core cpu/850 Corsair PS/WD 500GB 10k rpm HDD/aftermarket cpu cooler w/2 120mm fans. Tower has total of 2-200mm & 6-120mm fans , not counting the 2 smaller on the GPU. I have tried with both Windows 8.1 and also 7 Ultimate . My GPU is getting very hot and freezing my manuverability in games, both FPS and others like Warthunder. What shld I do? help plz.