How we fight coil whine in the RM Series power supplies

Over the past few years, Corsair has refined its ZeroRPM fan technology. Our power supply fans remain silent until 20%, 40% and even 60% load. We’ve developed quieter fans with quieter fan motors and fan blades designed specifically for moving air through the crowded PCB of a power supply. But we haven’t forgotten that there are power supply noises that come from other than from the fan, and in this article I will detail some of the additional steps we have taken to limit PSU noise in our new RM Series power supplies.