12V line problems? Motherboard or PSU?

[Lister]

I purchased a new case and I moved an older AMD 900mhz pc into it. Well, after somehow killing my ATI 7000, I got it to boot up with a spare card and I got a bios error saying there was a monitoring problem. According to the BIOS, my 12v rail is only putting out .36v. I tried a different PSU and the BIOS still reported the rail at .36v. I'm assuming I somehow damaged the Motherboard???

 

[Lord Evermore]

I'm not sure you'd even be able to get into the BIOS options screen to look at the voltages if the CPU was receiving that little voltage. That's so little it may as well be compared to not having a CPU at all, but maybe it's just enough to let the board boot and get to CMOS.

Can you boot the machine past the error message? Do you have another motherboard to test the CPU in? (I'd say test the CPU in another machine, not put a known good CPU into a possibly bad board.)

 

[compudog]

It could be the Winbond (or whatever your board uses) monitor chip is bad. It sound to me like a motherboard problem and not CPU or power supply IMO.

 

[Lister]

Yea, well, I can't seem to get the motherboard to boot off of the CD drive. I have no idea what the problem is. I'm going to change parts one by one, till I can get it to work