Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > System starts then shuts down seconds later

System starts then shuts down seconds later

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - System starts then shuts down seconds later

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grindy   10-09-2009 at 12:51:56 AM

Hi,

My second system is a P4 desktop. It was working fine, no symptoms of any problems - then yesturday it would start briefly and then completly shut down after about 5 seconds. No POST beeps at all, just shuts itself down.



Here's what I've done:



Switched the PSU with a known good one, same problem.

Removed video card and all RAM, unpluged power from all drives - same problem.



Is there anything besides an overheating CPU that can cause this? Both fans spinup at startup without problem.



All ideas welcome.

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cmichael138   10-09-2009 at 01:29:29 AM

Could be MB but definitely sounds more like the CPU.

Reply to cmichael138
grindy   10-09-2009 at 02:36:59 AM

How would I go about confirming the CPU (without having a replacement to use)?

Reply to grindy
cmichael138   10-09-2009 at 03:28:03 AM

Maybe one of the regulars knows of something, but the only options I can think of are Your CPU in another MB or another CPU in your MB. Sorry.

Message quoted 1 times
Reply to cmichael138
grindy   10-17-2009 at 08:23:03 AM

cmichael138 wrote :

Maybe one of the regulars knows of something, but the only options I can think of are Your CPU in another MB or another CPU in your MB. Sorry.



Thanks cmichael138, but I don't have that luxery.

Reply to grindy
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