short circuits on mobo laptop

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  • scooby01
    Member
    • Dec 2011
    • 28
    • uk

    #1

    short circuits on mobo laptop

    I am sure this has been posted upteen times, but what is the best way to check for short circuits that are not obvious. Is there a method. I hear a crayon trick? I have 2 motherboards that just kill the psu. Got no idea how to tell what's causing it without going through lots of new psu's. One is a imedia Acer media system which pops the psu and at £49 a go cannot afford it.
  • b700029
    Banned
    • Sep 2010
    • 640

    #2
    Re: short circuits on mobo laptop

    Get a low voltage high current bench supply with current limiting. Set it to the rated voltage and 0 current, then gradually turn up the current to a few hundred mA while feeling the board for hot/warm parts.

    Comment

    • ratdude747
      Black Sheep
      • Nov 2008
      • 17136
      • USA

      #3
      Re: short circuits on mobo laptop

      Moved out of FAQ.
      sigpic

      (Insert witty quote here)

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