|System was running OK, just turned it on one morning, didn't work, opened side of case to get better look, pressed power button again, fan spins for half a second.|
It has a pci graphics card in it, PSU says 420w. I took out the graphics card and plugged monitor into onboard vga.
Tried other PSU too including a 700w thermaltake. no difference,
I decided to put it all back together and try clear the cmos, and i notice a drop of water on the motherboard. I don't think i sweating, but i cleaned it up. Turned it on and it now posts. But says new cpu installed, enter cmos to configure. Does that all the time now. I enter setup and tried different settings, to no avail. Unplugged power cable for 10mins, then plugged back, turn on pc enter cmos, to see if it held the time, it did, so battery dont seem to be flat. So next i downloaded latest bios update from asus website. Flashed the bios thru ez flash in cmos using usb stick. It flashed then rebooted. And gives me the error bad bios checksum, recovery, but it cant find my usb stick, tried plugging it into all usb ports, it wont find it. Tried clearing the cmos again, now i cant get the computer to post.