Alert! shut down - thermal event

Dell/Optiplex GX270
March 31, 2008 at 15:22:35
Specs: XP Home, P4 2.8/512

When I went to my computer I noticed it was off (which i leave it on all the time). When I powered up my pc after the dell load screen I got a bios Alert message that said "Alert! Previous shut down due to thermal event" I checked the motherboard and tested with another processor. I also tested the processor in another board. checked all the fans as well. I used Artic Silver thermal compound and reset the bios error report. Booted the pc with no problems. Ran fine for a couple of days. Now I turned the pc on after being off allday and I get a Dell load screen then it shuts off or the power button will still be green but nothing loads. Any help appreciated.

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March 31, 2008 at 15:47:55

Did you check the temperature after installing the Arctic compound. I'm wondering if you used too much. It's a common mistake.

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March 31, 2008 at 16:26:06

You should have checked in the BIOS to see what the temperature setting to shutdown was set at. If too low a temp is selected then you will have that problem.

Did you clean off the old thermal compound first?

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April 1, 2008 at 17:23:17

It's the capacitors on the MOBO. Open the case again, and take a look. If you can't see them all, lift up the protective plastic cover for the case fan. You'll see that they are popped up. That's the cause of your Thermal Event and the inability of the machine to boot.

If the desktop is still under warranty, you can get a replacement MOBO from Dell. Dell's out of warranty replacement for these boards ran out on 31 Jan, so, if you're machine is out of warranty, you'll either need to buy a board (appx $500), or buy another computer.

Life's more painless for the brainless.

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April 1, 2008 at 20:15:06

Thank you Jennifer SUMN, thats exactly it. I was doing a little reading about the bad capacitors on the 270's before checking back here. 6 out of 8 capacitors on the board have bulged tops. Thanks for all responses.

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April 2, 2008 at 07:37:55

Welcome. Oh, btw, the Power Supplies die too. :) Also in the Optiplex 755s and the Optiplex 620s.

Life's more painless for the brainless.

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