noisy psu

Discussion in 'PC hardware help' started by texaken, Aug 15, 2009.

  1. texaken

    texaken Member

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    my corsair hx520psu is noisy(37 db at a metre)and shows the 12v rail as only 4.80 volts. Do you think it is faulty or is this normal?
     
    texaken, Aug 15, 2009
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  2. ddp

    ddp Moderator Staff Member

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    are you certain the 12v is only 4.8v as you need about 12v +/-10% for the drives & fans to run?
     
    ddp, Aug 15, 2009
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  3. sammorris

    sammorris Senior member

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    The 4.8V is a false reading, ignore it. How are you measuring the noise? Are you sure it's the PSU? HX520 units are very quiet (typically less than 20dB at 1m)
     
    sammorris, Aug 17, 2009
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  4. texaken

    texaken Member

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    I have a multimeter that measures the noise and use Everest which shows the 12v as only 4.8
     
    texaken, Aug 17, 2009
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  5. sammorris

    sammorris Senior member

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    Yeah, a standard multimeter is ridiculously inaccurate to measure noise.
     
    sammorris, Aug 17, 2009
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  6. texaken

    texaken Member

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    Thanks for all your replies. it could be the total noise of psu,rear extract fan,gpu fan and cpu fan.
    Its an alphatek multimeter so should be good.
    the volume is really annoying me as my sons pc is nearly silent,
     
    texaken, Aug 17, 2009
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  7. sammorris

    sammorris Senior member

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    Seriously, it is very unlikely to be the PSU that's noisy. Try stopping all the other fans in your PC to find the culprit.
     
    sammorris, Aug 17, 2009
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