Someone called me saying their computer keeps shutting off. I brought it home to troubleshoot.
It's an HP Pavilion 513c
The computer powers on normally, but almost immediately powers off. Sometimes it manages to make it to a fully loaded desktop, and other times it powers off during the boot process.
The hard drive still spins but there is no video and the CPU fans quit spinning. The power has to be unplugged before you can turn it back on again.
I'm thinking it's either a motherboard or power supply issue. I don't have a spare of either component laying around to test with.
Any guess on which part is more likely to be the culprit?