Hey Mike,

I agree.

I don't think its the power supply, why would it output all the
voltages correctly when not plugged in?

I think the short is maybe causing the current to be pulled over the
specs, so that causes the power supply to cut off (some sort of
protection circuit built into these things?).

I will unmount the mother board and unplug everything, plug it all
back up, and cross my fingers!

Thanks for the tip!

Cheers!

Nate