My dad's computer has a dire problem.
The day before yesterday, I was informed that his computer wasn't working. I went down to look at it, and it really wasn't. It didn't even turn on. I've (obviously) done all of the obvious things. I've checked the power cord going from the surge protector to his computer, made sure that port in the surge protector worked (I plugged his monitor into it and its LED powered up, and it made sounds like normal CRT monitors do). I also swapped his power cord, I even took the power cord and his computer to a completely different circuit and it still doesn't power up.
Yesterday, I was talking to my friend about the problem (after I had decided it was likely the power supply). He said he had an extra power supply that was just collecting dust under his bed (literally), so he ran up to his house, got it and brung it down. A few minutes ago, I tried puting in the new power supply. I plugged both the 20-pin and 4-pin connectors to the motherboard...still nothing (I also made sure the wall socket I was using worked). I even went as far to pry off the front bezel on his case and make sure that his power switch was intact and there was no short circuits (even if there were, the computer would just automatically power up when plugged in). I made sure the switch was plugged into the motherboard too. NOTHING. It's still as dead as a rock. I've also taken out all PCI devices and tried booting it up (since his computer is a stock eMachine computer there isn't much to take out--just a PCI modem). Still, nothing.
At this point, my best guess is that there was some bizarre power surge that hit only his circuit, or his motherboard is completely fried.
Does anyone have any ideas or suggestions on how to get him back up and running? Thanks.