Multimeter and Motherboard/ Power Supply

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smackedass - 25 Feb 2007 00:41 GMT

Hello,

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,

smackedass

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Tom Biasi - 25 Feb 2007 18:58 GMT

> Hello,
>
[quoted text clipped - 4 lines]
>
> smackedass

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.

Tom

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w_tom - 26 Feb 2007 06:46 GMT

On Feb 24, 7:41 pm, "smackedass" <kemanospamcompu...@verizon.net>
wrote:

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

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 alt.windows-xp at:
http://tinyurl.com/yvf9vh

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.

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smackedass - 28 Feb 2007 01:35 GMT

> 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 alt.windows-xp at:
> http://tinyurl.com/yvf9vh

Thank you.

sa

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Homer J Simpson - 26 Feb 2007 19:52 GMT

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

Why do you want to do this? What do you expect will be the results?

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smackedass - 27 Feb 2007 03:03 GMT

> Why do you want to do this? What do you expect will be the results?

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.

sa

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Electronics Forum / Basics / February 2007

Multimeter and Motherboard/ Power Supply