Computer shuts down , starts up by itself

January 18, 2011 at 17:22:12
Specs: Windows XP, 2Gb
Had this problem for a very long time. MOBO P4XP-X. I think I have fixed it so I'm posting this to help others with similar problem. My desktop would suddenly say "windows is shutting down", then it would restart by itself and sometimes get back into windows, sometimes reboot during POST or slightly after. This happened repeatedly and it would then go into BIOS settings and say that my CPU was reporting it's frequency incorrectly or some such thing. I finally found out it was a bad POWER BUTTON. Who would have thought? I think the power button contacts were either too close to each other or had some dirt accumulated that was causing a short when vibrated even slightly. I connected the reset button to the power button pins on the mobo after disconnecting the power button wires. It's now been running for 2 days continuous without a hiccup. Hope this helps someone

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#1
March 4, 2011 at 19:38:39
Thanks,I have the same problem,am going to try your tip,thanks again.

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#2
March 9, 2011 at 20:12:18
Thnak you, my brother has the same problem, I will try the switch fix.
kiri

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#3
March 11, 2011 at 08:05:15
Update
I had 2 computers (P4XP-X) with this problem. Both fixed and running now for 2 months without a hiccup. Man, am I glad to have fixed them! They are really good motherboards.
I opened the front panel and exchanged the positions of the Reset and Power buttons after disconnecting the old Power button connectors on the MOBO and hooking the Reset button pins there instead. The buttons are just held in place with hot melt glue under the front panel so they are easy to remove.
Jimmyf

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