I have 2 radeon 7850 ghost cards running in crossfire. When i run certain games (prototype 2) Mad Max My computer completely shuts off.. With in 1 min of mad max even before the main screen the computer shuts down and within 5min of prototype it does. i got a g65 motherboard A10 chip. No its not overheating its never been of 42* I have a 730 watt power supply... I have the latest bios all the games ran just fine before i crossfired both cards work just fin on their own... Any ideas?