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Multimeter and Motherboard/ Power Supply

Discussion in 'Electronic Basics' started by smackedass, Feb 25, 2007.

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  1. smackedass

    smackedass Guest


    Can anyone out there recommend a newbie-friendly illustrated online tutorial
    on how to test a power supply and motherboard with a multimeter?

    Thanks in advance,

  2. Tom Biasi

    Tom Biasi Guest

    You can test the ps voltages with a multimeter but the MB has many things
    than can not be checked.

    The +5 and +- 12 can be checked with the multimeter if the ps comes on.

  3. w_tom

    w_tom Guest

    Diagnosing a power supply 'system' is rather easy and described in a
    previous post "When your computer dies without warning....." starting
    6 Feb 2007 in the newsgroup at:

    Diagnosing a motherboard's many other functions gets rather more
    complex due to the diversity of designs and need for basic electronics
    knowledge. To better answer the motherboard part, you must limit the
    scope to particular sections or circuits. But part of a motherboard
    involved with power supply system starts with a procedure in that 6
    Feb post.
  4. Why do you want to do this? What do you expect will be the results?



  5. smackedass

    smackedass Guest

    At first, I thought that I might be able to to decide if either/both a power
    supply or motherboard might need to be replaced.

    Now, a bit better informed, I think that I can decide if a power supply is
    good, thereby (in most cases) leaving, by process of elimination, the
    motherboard as the most likely cause of a computer not booting, as far as to
    see the BIOS screen.

  6. smackedass

    smackedass Guest

    Thank you.

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