That's the first thing that i assumed so swapped pretty much everything over, i swapped the gcar, power supply and processor. Anyhow, without me sounding like a complete idiot, i seem to have fixed the problem.  After your suggestion i thought well it couldn't hurt to re-flash the bios anyway, so i did, in doing this i went to the asus site to be sure that i was doing everything ok, my mobo even said i was running v1202, however when i looked at the site for the second time i noticed some warning instructions. MAINLY SAYING DO NOT HAVE YOUR MACHINE OVERCLOCKED WHEN ATTEMPTING TO FLASH THE BIOS.  This i hadn't seen before, i de-clocked flashed the bios, overclocked again and have been playing without a problem for 3 hours now. I can't...