hi my ex wifes pc wont boot, it has an ASUS M2npv-mx motherboard, for a while it has been problematic starting, but has no stopped booting, all lights and fans working, have reseated, and swopped memory, flashed cmos, when I turn it on the lights come on , BUT IT NO LONGER MAKES A BEEP AND ENTERS BOOT UP, I am thinking motherboard has died, any ideas?