Question about Abit AB9 Pro Motherboard

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AB9 Pro motherboard

I am building a computer and have everything in brand new power supply and when I go to turn it on nothing happens. The fan doesn't even run on the power supply. Jumper configurations are all correct. Any advice?

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Do this test this will tell you if your power supply is good or bad we will do the process of elimination ok.
How do I test if the power supply is bad?
Warning This test is for those with extensive electronics training. Do not try this if you do not have extensive electronics training. Make sure there is enough load connected to the power supply before testing ( at least motherboard and one hard drive)!
AB9 Pro motherboard - atxpin.jpg
atx2.jpg
ATX power connector layout isshown above. 5VSB constantly provides 5V power to the connector through pin 9. If you have a voltmeter, while the power supply fan does not turn on, you could identify which pin is pin 9. Normally there is a clip on the connector between pin 15 and 16. If one can identify pin 14 (the only green wire goes to pin 14), this is the power-on pin. Onee can use a piece of wire to short pin 14 and 15 (or any other black wired ground pin). If you power supply has power connected to it and power switch on the power supply is on, the fan should be turning by now. Otherwise, your power supply may have problem.

Posted on Dec 27, 2007

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Well.. if anything didnt spark and smelled burned.. you can still connect it up correctly.. or is the socket from t he wall that is not working...

does any led turns on? or does it beep when you try to turn it on? because that must mean its not getting any electricity

Posted on Dec 27, 2007

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Does the FAN in SMPS run? if the FAN in SMPS runs see if FAn in mother board runs

Posted on Dec 27, 2007

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  • dewan nafees ahmed Dec 27, 2007

    the 1st phase where poer enter the system is the SMPS. that is located along with the cabinet.
    1st chech if SMPS is reciving power by seeing if SMPS fan is spinning. it can be seen visibly from outside.
    if this is not occuring. try different socket or try different wires

  • dewan nafees ahmed Dec 28, 2007

    and one more thing to be noted....
    if SMPS fan itself is not rotating means there is no supply from your UPS. try connecting the SMPS to direct power and test if it is working. so that you can isolate the problem that you are facing.

  • dewan nafees ahmed Dec 28, 2007

    if SMPS is supplying power its it can be checked as follows.

    there will be four wires for each power output.
    red to black must give out 5 v... tis s meant for data i think
    yellow to black 12 v.. ths s meant for operation of device i think.

    you can test it using a multimeter...

    but this test is necessary only when SMPS fan is not running.


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