To learn how we measure ripple, please click here.
The following table includes the ripple levels we measured on the RM650x's rails. The limits, according to the ATX specification, are 120mV (+12V) and 50mV (5V, 3.3V and 5VSB).
Corsair's ripple suppression is amazing! This platform is the only one we've seen able to match Super Flower's Leadex design, which is used by EVGA's high-end models. Corsair, enlisting CWT's expertise, managed to build a ripple-proof platform under all operating conditions. There are only a few PSUs out there able to offer similar performance.
Ripple Oscilloscope Screenshots
The following oscilloscope screenshots illustrate the AC ripple and noise registered on the main rails (+12V, 5V, 3.3V and 5VSB). The bigger the fluctuations on the screen, the bigger the ripple/noise. We set 0.01V/Div (each vertical division/box equals 0.01V) as the standard for all measurements.