Hi! I have just recently built a PC. My specs are a XFX R9 280, 12GB's of RAM, AMD FX-8350, Gigabyte GA-970A-D3P Motherboard, 500w PSU, and a BitFenix Comrade Mid Tower ATX Case. Just recently it has started freezing while in any game after an hour or so, I go to feel the top of the case (which...