While in normal operation (read: playing a game) the PC shut off\nunexpectedly. All attempts since then to boot has failed. The fans and\nlights will work for about 1/2 a second and then nothing. I swapped\nout the power supply to eliminate it as the cause which leads me to\neither the mainboard or the cpu.\nI had been wathcing the temps and nothing has been too high. I even\nenabled shutdown if the temp got too high so I'm not suspecting the\nchip, but how can I rule it out?\n\nAnyone have any ideas I could try other than the likely RMA?\nIs there any way to distinguish between a cpu failure and a mobo\nfailure if I dont have an extra of either to swap out?