I've recently built a whole new system and for some reason ,any game i play, within minutes the game will crash and an error .exe not responding message will appear. The games i've tried are team fortress 2, need for speed underground, tomb raider underworld, and dead space. I've updated to latest drivers and bios and still hasn't fixed the problem. I'm all out of ideas please help System specs: OS- windows vista 64-bit, amd 9750 quad core 2.4 Ghz, MSI k9a2 cf motherboard, xfx geforce 9800 gtx+, Coolmaster 650W PSU, 2G DDR x2