To learn how we measure ripple, please click here.
The following table includes the ripple levels we measured on the EVGA SuperNOVA 650 P2's rails. The limits, according to the ATX specification, are 120mV (+12V) and 50mV (5V, 3.3V and 5VSB).
Super Flower's Leadex platforms simply do not have issues with high ripple, and the 650 P2 demonstrates its quality with the results listed above. Even in a worst-case scenario, the ripple at +12V was only 8mV. And only the 3.3V rail went above 10mV.
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.