Computer won't turn on

[gamekid]

while i was away from home at school, my family killed my desktop at home, somehow. It stopped turning on.

situation:
if i press the power button, nothing happens. However, if i turn the psu off, then turn it back on, wait a second, and then press the power button, the fans will get some power and start to spin and then stop right away.

i looked online and was lead to believe that there's an electrical short somewhere. so i disconnected everything from the psu and motherboard except the fans and processor. the same thing still happens. i don't see any blown capacitors or anything on the motherboard.

so my question is, what does this sound like? The psu, processor, or motherboard?

 

[Dangman]

Follow the stickied 'Basic Troubleshooting Guide" on what to do when the PC does not POST.