Thermaltake have updated their lineup of PSU testers with the Dr. Power II PSU Tester, giving digital readouts on the health of any PSU up to ATX v2.3.  With it you can measure your +12V, +5V, +3.3V, 5VSB and the -12V rails to within 1/10th of a volt.   Every connector is present for you to test barring the 4-pin floppy connector, which is so infrequently used that it is no great loss.  ProClockers have seen it in sale for $30 and highly recommend it to anyone who spends a fair amount of time testing and fixing PCs.

"I am sure many of you that frequent friends and family members PC station, the first thing you hear when the PC fails to boot is “I think the power supply is dead”. This may or may not be the case but in order to confirm this is to give the PSU a quick test to see if all the rails are working properly. Several companies have sent their version of this particular type of product to our lab. Today, we will be taking a look at the latest Dr Power II from Thermaltake. The Dr Power II has an over-sized display and able to measure idle rails voltage with pretty good accuracy."

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