|" Effective testing of a power supply requires far more than just connecting it to a PC and using a $10 multimeter to check the voltage rails. At the very least, it requires specialized (and very expensive) equipment. At this point, most people that actually know a few things about PSUs would say, "Yes, OK, you need an adjustable load and an oscilloscope." While it's true you need those items, you can't simply grab any old adjustable load and oscilloscope. What you really need is very precise, programmable electronic loads with transient testing built-in and an oscilloscope that should comply with exact specifications, among other meters and equipment. Then of course you need to know what you are doing, as it's not simply a matter of connecting a PSU to the equipment and pressing a few buttons; there are exact loading and testing procedures, described in technical papers and guides, that need to be followed.|
Programmable DC loads are an absolute necessity if you want to test a power supply. To that end, we acquired two high precision Maynuo M9714 1200 Watt and two Maynuo M9711 150 Watt electronic loads, which will allow us to draw up to 2400 Watts from 12 Volt lines and up to 150 Watts from each of the 3.3 Volt and 5 Volt lines. As these are quick-response programmable models, they will also allow us to perform transient tests in the future."