Question about Dell OPTIPLEX 745 PC Desktop

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I powered off my Dell Optiplex 745 as normal one night before bed. The next morning I went to turn it on and it just displayed a yellow flashing light where it normally displays a green light. The fan did not turn on or anything just a yellow flashing light. I held down the power button and the yellow light stopped, I then pressed the power button again and it just did the same thing... Does anyone know what this problem could possibly be?

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  • Dell Master
  • 1,684 Answers

Hello,

This model has been having problems with the motherboard that can cause that exact problem, Not powering up, Flashing yellow light or locking up right after booting up. The first thing to check is parts called capacitors on the motherboard. We have an article posted on our web site at: http://www.ccl-la.com/blog/index.php/dell-optiplex-745-repair/ that has detailed pictures and information about this issue. The pictures are of the tower case Optilpex 745 but the board is the same for your unit. Check it out and see if your board has this issue. If you can solder then you should be able to fix it yourself for less than $15.00 If your board does not have the bad capacitors then the blinking yellow light is a failure in the power supply unit.

I hope this helps, if so please rate our solution.

CCL_Tech
Corporate Computer
www.ccl-la.com

Posted on Sep 15, 2010

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  • Contributor
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OK first of all how did you power off this computer?

Posted on Aug 28, 2010

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