Question about Dell OPTIPLEX 745 PC Desktop
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.
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Posted on Sep 15, 2010
OK first of all how did you power off this computer?
Posted on Aug 28, 2010
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Posted on Jan 02, 2017
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