PC shut downs automatically after a second

Posted by emzero on Super User See other posts from Super User or by emzero
Published on 2012-03-23T02:38:34Z Indexed on 2012/03/23 5:33 UTC
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I have this not-so-old computer that's not being used for a year or so.

Specs:

  • Motherboard: ASUS PN5-E SLI
  • CPU: Intel Core2Duo E4300
  • RAM:2x2GB SuperTalent DDR2-800
  • VGA: Zogis GeForce 7950GT
  • PSU: Vitsuba San-55-S 550w
  • HD: No hardrives yet

When I power on the computer, everything seem to start, but right away the whole system shuts down.

I've removed and changed the RAM sticks, take out the VGA, everything I could think of.

So what could it be causing this? The PSU? The motherboard is dead? The CPU? Any help to isolate the problem will be useful.

Thanks

PS: Please don't close the question, this could be helpful to anybody having a similar problem, even with different hardware.

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