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  1. #1
    New Lounger figarsd's Avatar
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    How do you test a power supply?

    I thought I'd ask this as a separate thread to followup on my previous question: Is there a way to test a power supply to see if it's been fried without buying a lot of equipment?

    Thanks.

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    Super Moderator CLiNT's Avatar
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    How to test a power supply

    See also "the paperclip test" (PDF), & multimeter testing.
    Last edited by CLiNT; 2011-08-13 at 09:43.

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    Was "multimeter testing" supposed to be a link?

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    Plutonium Lounger Medico's Avatar
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    Bronze Lounger DrWho's Avatar
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    Cool

    Yes, if you have a digital volt meter and the know-how, you can test a power supply, but for the price of a decent meter, you can also buy a dedicated power supply tester. I have one and use it quite often.

    Of course, the easiest way is to take your PSU to someone qualified to test it for you.

    Just a thought,
    The Doctor

    PS: As tutorials go, this one is pretty thorough.
    http://www.techrepublic.com/article/...imeter/1056686
    Last edited by DrWho; 2011-08-13 at 10:11.
    Experience is truly the best teacher.

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  7. #6
    New Lounger figarsd's Avatar
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    Thank you all for the advice and links. I've dug up an older computer that works for now and will attempt one or more of the above in the near future.

  8. #7
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    I have a bad power supply also. I tested it with one of the Thermltake Dr. Power. When I plug the power supply in it shows a bad power supply but if I move the wires around it test fine. The fan in the power supply does not come on. Should it? Is the power supply dead?

    Thanks

    Marc

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    Super Moderator Deadeye81's Avatar
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    Quote Originally Posted by Check Marc View Post
    I have a bad power supply also. I tested it with one of the Thermltake Dr. Power. When I plug the power supply in it shows a bad power supply but if I move the wires around it test fine. The fan in the power supply does not come on. Should it? Is the power supply dead?

    Thanks

    Marc
    If the fan in the power supply does not come on, then it is time to install a new power supply.

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