Question about Dell Dimension 8400 PC Desktop

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Random shutdown When running the PC for a while (sometimes days, sometimes hours or minutes) the PC will shut down. When it does this, I can't turn it back on right away. I have to let it sit for 20-30 minutes. It sounded like a heat problem so I cleaned the inside of the case (looks new) and I removed the CPU heatsink - cleaned the old paste (with cleaner) used new paste and remounted the heat sink. This seemed to help and it ran for days with no problems. However, it's right back to where it was before. I'm thinking power supply. Any thoughts?

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Re: Random shutdown

TRY I think is your power supply.
GOOOd luck!

Posted on Oct 28, 2007

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Re: Random shutdown

The power supply would have been my 2nd option too. It can build up quite a bit of dust which gets very hot inside and overheats. Good thing power supplies are cheap. I assume since you cleaned the heatsink area that your fan is working and plugged in. A bigger fan might be needed too.

Posted on Oct 28, 2007

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