Pentium 3s

I'm repairing an old 478 pin pentium rig for a friend but it keeps switching off, anyone know why?

Basically, it's a right antique, but the mainboard and 430W power supply are brand new. I've tried removing/replacing the 2x512Mb RAM modules and graphics card but every time I switch it on, it powers up then just dies after about 5 seconds. I can only place it down to either a dodgy processor, or possibly a short in the case wiring? Any suggestions (apart from telling my mate to upgrade this crap, haha). Cheers.

Public Comments

1. I had this problem and it was a short in the case switch. I replaced everything before I found it. Perhaps a computer shop near you has a junk bin you could snatch one out of...good luck man.
2. Question -? did you hock up all cables and the fan ? Paste under CPU ? Check your cables-had the same problem some time back-cable lose.