plugged something new inti USB and PC froze. Now I only get the Compaq flash screen and is hangs v3.14 in the corner. the bios never loads. I tried clearing cmos but may have done it wrong and made matters worse (moved jumper to clear, then booted then moved backand booted). same result it still never loads bios. i removed the battery and reseated it. the hard drive spins so i know it is not the psu. i disconnected evrything and reseated cards and memory still same thing.
one more thing, fan spins really fast then slows down.
More aboutsolved motherboard dead help
you did not say which operating system. you probably need to do a REPAIR INSTALL of the operating system, which does not erase your personal files. Well, the bios could be caved too.