I need help with my home PC. I had to reformat the entire thing so I took that chance to install Windows 7. So for now, that's the only OS on my computer. Now, I don't know if this is coincidence or something, but my computer is starting to overheat when it does anything that's taxing on the graphics card. I can't play any games without the computer overheating and crashing. I don't know if it has anything to do with 7 but I can't think of anything else. I cleaned out all the dust and all 4 fans are working (graphics card, motherboard, and two case fans). I'm at a complete loss. I installed Rivatuner so I could crank up the fans but it still doesn't stop the computer from overheating.