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Thread: broken PSU - Quick Qs

  1. #1
    Senior Member wannabgeek's Avatar
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    broken PSU - Quick Qs

    Hi my PC suddenly turned off and will not start. Inside the case the mobos green lite is on suggesting there is power from the psu but i have just done a quick test by putting a voltage tester on the molex connector (negative on the black and positive on on yellow/red) When pc is turned on my non digital voltage connector will lite fully up to the 400v but will then just dissapear with only the + green lite on the right liten up, just as if you were testing the voltage tester. Does this mean psu is broken. Ps forgive my brief description on testing but i am in no way a electriacian as youve probably guessed. LASTLY IF I DO THE PAPERCLIP TEST WHERE DO I PUT IT PS?Thanks in advance

    ps ive checked the power switch wiring on front case but its not faulty. Also the voltage tester is a Steinel master check 3.2. PSU is a Enermax



    ps jUST TRIED THE PAPERCLIP ON THE atx GREEN AND BLACK WIRES BUT FAN DID NOT SPIN SO I AM GUESSING PSU IS DEAD...iS THIS CORRECT?
    Last edited by wannabgeek; 18-01-2012 at 10:44 PM.
    Windows 7 64 Ultimate
    AMD x6 1055T Phenom @3.3ghz
    Asus M4A89GTD-Pro-USB3
    HD 6850 1GB GDDR5
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    Tx 650w Corsair PSU
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    200GB Maxtor Dmax10 IDE
    LG Sata2 DVD/RW
    Lancool K62 Case

  2. #2
    Senior Member Pob255's Avatar
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    Re: broken PSU - Quick Qs

    yep sound like it

    Paper clip in the green and black, turn it on, if the fan's not turning then it's probably dead.
    It's often worth plugging in a fan via a molex adaptor, just in case, as that's a good indication of any 12v output. (although a multimeter is best, a fan is easy and quick to do)
    http://www.overclock.net/t/96712/how...and-components
    try sniffing it, you can often spot a dead psu by the smell.

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