To learn how we measure ripple, please click here.
The following table includes the ripple levels we measured on the SuperNOVA 850 P2's rails. The limits, according to the ATX specification, are 120mV (+12V) and 50mV (5V, 3.3V and 5VSB).
Super Flower proves once again that its engineers are the masters of ripple suppression. The AC deviations are so low that you'd need a very clear AC source and good oscilloscope to get ripple measurements. The 850 P2 sets a new standard here; the competition would have a difficult time creating an alternative with similar performance.
The table above contains some of the lowest ripple readings we've ever measured, and we believe that only digitally-controlled PSUs will be able to do better.
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.