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View Full Version : Need troubleshooting help: PC Reboots randomly!



joebuffalo
09-28-2007, 10:55 AM
So the other day my PC started to reboot randomly. Right in the middle of wherever it is the screen goes black and then a few seconds later I am back at the BIOS.

It is not hard drive related because it also happens when all hd's are removed and booting off a ubuntu cd.

I have removed all cards except video, and it still happens.

My motherboard bows a bit from the heavy heatsink, so I though maybe it was making contact with the case, so I took everything out of the case, and it still happens.

Sometimes it works for a while...maybe a half hour or and hour. So I tried a torture test of the CPU and it never got any hotter than normal, so I know it's not a CPU overheating issue either.

I think it's either the power supply (my most likely candidate - It's a 420W Antech Neo HE that came in my P150) or the mobo/CPU.

But how can I test which it is without wasting money on a new power supply?

Or do you have some thoughts on what else it might be?

Thanks for the help. This has been driving me nuts for a few days now. :confused:

CannonFodder
09-28-2007, 02:17 PM
Maybe you can try a bit of memtest or try with one stick of ram to rule that out.

joebuffalo
10-01-2007, 01:05 PM
thanks...looks like it a busted mobo.