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motherboard's green light glows little and PC not started

by donraza007 / June 10, 2012 10:52 PM PDT

my motherboard's green led light glows little and my computer does not start. when i just hit the motherboard two three times from outside then light glows more and computer starts. Computer also turned off automatically at any time and green light glows little. That means when green light glows more, computer runs ok and when glows little computer turned off or not started. What should i do. need some suggestion urgent.

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Intermittent start
by pgc3 / June 11, 2012 12:33 AM PDT

It sounds as if you either have a bad connection and/or PSU starting to fail. In any event it would likely be best if you are not familiar with such things, to take it to a shop and get it looked at.

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Lacking details
by Willy / June 11, 2012 2:31 AM PDT

You provide hardly anything to ID your PC as its make-up. But, from the symptoms, it appears you have 2 areas to look at:

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Green LED indicates the presense of the control voltage

needed to latch the power supply when you press the momentary switch to start the PC. If you have a DMV, you should be able to measure that voltage. It will be a green wire on the PSU to MB harness. You should find it to measure about 5 vdc to ground. I would agree that this could well just be a bad connection. You can easily start by disconnecting the power connector to the motherboard. Examine the connector and make sure no pins have come unseated. It's not that uncommon for this to happen. Sometimes just taking things apart and putting them back together is a good first step. You might want to try that. Good luck.

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