-> There are devices made and sold which purport to be an "ATX Power Supply
-> Tester."   I haven't used any of these, and do not know how valuable
-> their apparent test results may be wrt any kind of "real PS testing",
-> which I tend to think would need to be done with loads attached which
-> were reasonable approximations of what might be required when the PS is
-> attached to a "real" mainboard,  drives, and etc.

 They give you a ball park test that proves the Voltages are within
specifications. As far as capable of full loading it dosne't do that But
if with the 5 Volt supply loaded and the rest of the voltages are
correct most likely the PS is GOOD.
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