my little sis is using my old comp which is an HP celeron 1.1ghz with 256mb ram. well anyways, it was working fine last night, but a little while ago when she went to turn it on it wouldnt turn on. i looked in the back because the psu has a little green indicator light when it is plugged in, and the light wasnt on. when i would take the wire out and put it back in the PSU, the green light will flicker real quick then turn off, so im thinking that maybe the PSU is blown out? i happen to have an extra one so im gonna try and install it, but that little HP is a pain to get the molex connecters unplugged.