How do you diagnose your psu?

[jjsos77]

I think my psu is dying on me. I need to know a way to find out if the psu is dying or not so I can know if I have to ship it to the company I bought it from. Is there any way to do diagnose my psu?

 

[enigma067]

With a voltage meter.

http://www.sears.com/shc/s/p_10153_12605_03482139000P?mv=rr