Hook up a Digital MultiMeter (DMM - If you have one... if not, grab one.
 They are only $15) on the rails.  As you add load (throw a bench mark up of
some sort) the voltage on the rails should stay fairly steady.
----
Julian


On Fri, Jan 14, 2011 at 10:14 AM, Anthony Q. Martin <[email protected]>wrote:

> How do you tell if a power supply is gone bad?  I bought this Antec Neo
> Power 650 Blue in September 2007. I can't see that I need more watts. It has
> 3 12V rails at 19A each, with a 5 year warranty.  I have no real indication
> that this PS is the problem in my system, though.  By the numbers I don't
> think I need a new one.
>

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