Multimeter and Motherboard/ Power Supply

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

Diagnosing a power supply 'system' is rather easy and described in a previous post "When your computer dies without warning....." starting

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.

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

Thank you.

sa