Question about Dell Motherboards
Dont worry about the amber light blinking,it just means that your harddrive is working.
Posted on Oct 22, 2008
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Jun 18, 2014 | MSI PM8M-V Motherboard
For the Optiplex 320, a flashing amber light with no sound indication can mean 3 things.
1) Your power supply has failed
2) Your motherboard failed, most likely from a bad capacitor.
3) The front panel board (where the power button is located) is faulty or not connected properly.
I've worked with 10's of 1000's of Dell Optiplex's over the past 8 years and the flashing amber light is well known as a tell-tail sign of one of those three failure. Always start your trouble shoot with a PSU tester, then inspect the motherboard for domed or split/leaking capacitors...then on to the front panel which would require another panel and ribbon from the same model.
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