asus p5ql pro 12v atx problem

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  • bloodline
    New Member
    • Dec 2012
    • 6
    • spain

    #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
  • RJARRRPCGP
    Badcaps Legend
    • Jul 2004
    • 6304
    • USA

    #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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    • Th3_uN1Qu3
      Believe in
      • Jul 2010
      • 6031
      • Romania

      #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
      Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
      A working TV? How boring!

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