Hi I am currently running a gaming pc with an

amd fx-4100 OCed@ 4ghz

Amd radion hd 6670 ddr3 version

16 gb ram

500 watt psu.But whenever I start MW3 my pc freezes for a few seconds and then restarts. I Have tried other games and they work fine and all my drivers are all up to date. Does anyone know what the problem is and know how to fix it?

Thanks,

Tom

EDIT: I have done a BIOS update now and when i lanch single player it crashes and says there is a error with iw5sp.exe and multiplayer its iw5mp.exe