Efficiency Testing


Overall, the efficiency numbers put out by Antec’s Quattro 1000W were extremely good when compared to the competition. Even though it is too bad that we can’t measure the actual efficiency in percentages, it certainly looks like the 80Plus certification of this unit is warranted. What is slightly more exciting is that this power supply actually stayed on during the Extreme Load test since we were almost positive that we would have tripped one of the OCP circuits while powering 3 graphics cards. This proved to be a bit of a head-scratcher for us but who are we to complain about a positive result?


Voltage Regulation Testing


+3.3V Regulation


As usually, there isn’t much to see here since we don’t have a system that puts much load on the +3.3V rail


+5V Regulation


Just like we saw with the +3.3V regulation, our system (an most modern systems for that matter) do not put sufficient load on the +5V rail and thus we see very little movement from it.


+12V Regulation


While +12V regulation isn’t as tight as some other (more expensive) units on the market, the Quattro provides very stable performance all the way into the Extreme Load test. With this power supply feeding 3 graphics cards and 6 processor cores, there was a pretty drastic drop in voltages but they still stayed well within ATX specified norms. Without a doubt, this is an excellent result that Antec should be proud of.