Question about Dell OptiPlex GX280 PC Desktop

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Dell optiplex gx 280 locking up and running out of control

A few weeks ago I added a video graphic card to my computer, It was a Nvidia 9500. Well my son played with it for the weekend and now all my computer will do is start up and then the fan will run out of control and the computer will lock up. I removed the video card but the system still locks up. The next thing that I did was replace the system power unit, but that did not fix the problem either. I do know that at first when this happened I could still use the computer but just couldn't run to many operations but as time went on the more it would lock up. Any suggestions.

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  • darts68 Jan 27, 2009

    I checked the leds and they are all green across the board, even when the computer locks up they are all still green. I can get the computer to stay on for a little while as long as I don't try to do anything fancy. I do appreciate your help.

    When I put the new video card in I did not have the required amount of power supply in it do you think that that could have fried the MB and is there any other checks that I can run before taking it to someone else to fix or can I fix it myself

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THe GX280 had 2 sets of LEDs that provide information on the POST. First is the POWER LED, if it is Solid Amber or Flashing Amber then there is a MB or Power issue.

The othre indicators are on the BACK near the PS2 ports, 4 LEDs Marked ABCD. These LEDs normally cycles then stop all 4 green (GGGG indication) if they stop in a different configuration (AAGG is a memory issue for example) then that can clue you in to the fault.

From the basic description, I'd say the MB has failed.

Posted on Jan 27, 2009

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