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Thanks for the detailed answer! Didn't know about that minimum load. Do you think it's safe to say that PSU is highly probable to be good if I test it while under load and don't notice any voltage variations?
– Artur Carvalho
Commented Aug 13, 2011 at 17:17
Unfortunately not.. most problems with PSUs are harder to spot, ie. they manifest in certain pattern of loads, ie. voltages going out of spec for only brief periods.
– Zds
Commented Aug 13, 2011 at 17:21
I see, basically I can test if something is wrong (if under some load) but not if it's OK. And has a nice power supply is cheaper than an oscilloscope it seems that it's better to have a good one at hand. Thank you for the help Zds! Really appreciate it.
– Artur Carvalho
Commented Aug 13, 2011 at 17:28
If you end up buying a new one, I recommend getting some high quality one; you don't usually need high maximum wattage, but you need overall good quality power under various load conditions. The problem with PSUs is that problems from them are very hard to track down apart from swapping in another one and testing it. Meaning paying some extra for good power quality saves your nerves in the longer run.
– Zds
Commented Aug 13, 2011 at 20:32
Yeah, I'm going for a corsair AX 750. Good efficiency, quiet and modular cables. Even so it's cheaper than the oscilloscope :)
– Artur Carvalho
Commented Aug 13, 2011 at 21:14

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