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

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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