Hello, 

I have recently had an issue with my computer shutting down in the middle of minor activity.   This first occurred about one and a half weeks ago, then again yesterday, twice.  Each time it restarted and ran chkdsk, all was fine, seemed to be fine in every respect.  Then the next time this happened, the computer was up for only 10 minutes or so, I was working and then poof..it went off.  I started it again, and as soon as it was completetly up, again it shut down. 

I have assumed it was the power supply, but seem to recall that it could as well be the MB.  Can anyone offer clues as to how to determine what it is for certain?

Thank  you as always for any help....
Intel Pent 4, 2.8, Soyo dragon2 mb.  System is approx 4 years old...Power supply currently is 475, not sure what more you need to know to help...Thank you,

Kathleen LaValley

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