Question about Gateway GM5472 PC Desktop

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Do not turn on I change the power supply and still doing nothing

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Assume you have made the connections on the main atx plug to the motherboard AND the smaller 4 pin Black and yellow wired plug (cpu power).

If the PSU you have just installed was sure to be a good one, then the issue lies with the motherboard or the switch to the power supply on the board (2 pin wire connector labelled PW). Try to remove the connector and then bridge the connection manually with an insulated screwdriver by BRIEFLY touching the 2 pins on the board. If the switch was faulty, this will bypass it and the computer will boot.

If it still will not boot, try removing all non -essential components. leave only 1 stick of ram and the video connection. if it boots, replace each in turn and see which one causes the computer not to boot.

If that fails, examine the board carefully, look closely at the capacitors ( small cylinders) on the board if any are bulging or the top is leaking a rusty coloured crust, the board is dead and will need replacing

Posted on Mar 26, 2011


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Can't turn on computer

you may try:
1)open cover take out all exterior devices like cdrom/HD/PCI card/AGPcard then power on, go next if nothing change.
2)open cover see any fan turning when power on , if nothing run, check biger power supply plug pin(Ps-on and 5Vsb)all at 5V are OK, less than 3V or nothing is power supply box damage. change new power box to test. still same trouble go next
2)open cover you can see a LED light on on the motherboard
and check power on button is working well(switch).
3) check all biger capacitor top, any one bulged shows motherboard DC damage and need to repair by PC specialist.
4) nothing change above, you have to change motherboard.

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