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asus p5ql pro 12v atx problem

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    #1

    asus p5ql pro 12v atx problem

    I have a asus p5ql pro motherboard every time I connect the 12v atx power supply to the motherboard it will not boot with out the 4pin 12v atx power supply connected the fans and hard drives will power up. I have tried another power supply so I can rule that out of the problem any help would be great
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    #2
    Re: asus p5ql pro 12v atx problem

    Not good! Try again with the board lifted away from metallic surfaces. First, clear the CMOS.
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      #3
      Re: asus p5ql pro 12v atx problem

      This almost always means shorted MOSFETs in the CPU VRM. Test them for shorts with your digital multimeter and replace as needed.
      Originally posted by PeteS in CA
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