hello everyone i own a dell demension desktop 3000 that would not turn on. i checked the power supply unit and it works fine in another machine and pass all testing but when i place it in the dell it would not turn the system on. Can anyone help me

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Does it turn on any lights on the motherboard ,should be red one somewhere on the board , usually when this happens its the motherboard gone bad

yea a green light comes on on the motherboard. i think the motherboard is gone too! have a question thought does the same thing happen if the memory is bad.

yea a green light comes on on the motherboard. i think the motherboard is gone too! have a question thought does the same thing happen if the memory is bad.

green is good, yes ram could cause problems like this .

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