Solved Whats the meaning of 1, 3, 4 green lights on Dell desktop

July 13, 2015 at 19:52:43
Specs: Windows 7
ok so i have this optiplex dell 780 and for a while it was working fine and then it won't boot up now and showing blinking green light 3 so how to fix or what is the problem or solution for this type of problem

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#1
July 13, 2015 at 21:17:02
The 'blink codes' should be in at least one of these service manual downloads:

http://www.dell.com/support/home/us...

That should give some information about the problem.


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#2
July 14, 2015 at 05:25:27
✔ Best Answer
Here's a direct link to the diagnostic light codes. 1-3-4 is not listed as a combination. 3 is listed as possible processor failure.

http://ebay.redplanettrading.com/de...


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