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pc does not boot up


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#1 sahq2

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Posted 21 October 2008 - 03:43 AM

My pc does not boot up. On pressing the start button the fans start moving and there is hard disc activity but no display. On adjusting and pressing the square 4 pin ATX connector to the mother board and switching on the computer every thing works fine until I switch off. But the same problem occurs every time i start the computer. The 20 pin connecter to the mobo is fine. What could be the problem? Is it the power supply unit!! I have a ASUS p4p mother board with windows xp software. pl help?

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#2 Guest_Abacus 7_*

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Posted 21 October 2008 - 03:52 AM

My pc does not boot up. On pressing the start button the fans start moving and there is hard disc activity but no display. On adjusting and pressing the square 4 pin ATX connector to the mother board and switching on the computer every thing works fine until I switch off. But the same problem occurs every time i start the computer. The 20 pin connecter to the mobo is fine. What could be the problem? Is it the power supply unit!! I have a ASUS p4p mother board with windows xp software. pl help?


It certainly sounds like Power Supply Unit.

I would get that checked out before it possibly fries something!

Another thing to maybe do, is to give it a good Blow out with Canned Air in case Dust and Fluff is the Problem.

:thumbsup:

#3 usasma

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Posted 23 October 2008 - 10:25 AM

The pins furthers away from the securing tab should be your grounds, the other two should be pushing +12 volts DC
A multimeter should tell you if this is what's happening at your pins. Wiggling the wires around will often show if there's a short/break in the wires.

Then it becomes a matter of where the power is being interrupted - in the wires from the PSU, or in the plug on the motherboard.
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