EVGA SuperNOVA P2 1200 W Review

Name: EVGA SuperNOVA P2 1200 W
Brand: EVGA

crmaris

on Aug 1st, 2014,

in Power Supplies.

Manufacturer: EVGA

Performance Rating, Performance per Dollar, Noise & Efficiency Rating »

Ripple Measurements

You will see the ripple levels we measured on the P2-1200's rails in the following table. The limits are, according to the ATX specification, 120 mV (+12V) and 50 mV (5V, 3.3V, and 5VSB).

Ripple Measurements - EVGA P2-1200
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
10% Load	10.0 mV	5.1 mV	8.5 mV	4.9 mV	Pass
20% Load	8.4 mV	4.5 mV	8.4 mV	5.1 mV	Pass
30% Load	10.1 mV	5.4 mV	8.8 mV	5.7 mV	Pass
40% Load	10.3 mV	4.8 mV	9.5 mV	8.0 mV	Pass
50% Load	11.2 mV	4.9 mV	10.1 mV	7.4 mV	Pass
60% Load	11.6 mV	4.9 mV	10.0 mV	8.2 mV	Pass
70% Load	13.7 mV	5.1 mV	10.3 mV	8.6 mV	Pass
80% Load	14.7 mV	5.5 mV	11.0 mV	9.1 mV	Pass
90% Load	15.8 mV	5.3 mV	11.5 mV	9.5 mV	Pass
100% Load	16.3 mV	6.0 mV	11.9 mV	10.0 mV	Pass
110% Load	19.4 mV	6.4 mV	12.5 mV	10.8 mV	Pass
Crossload 1	10.7 mV	3.9 mV	8.4 mV	18.1 mV	Pass
Crossload 2	14.8 mV	5.6 mV	11.7 mV	8.0 mV	Pass

Super Flower smoked the competition in this section as even Delta's implementations would be envious of such ripple suppression. There are no words to describe our admiration for Super Flower's engineers. Ripple on +12V doesn't exceed 20 mV and is simply nonexistent on the 5V rail. With such results, there is no point in using a scope for ripple measurements.

Ripple at Full Load

You can see the AC ripple and noise the main rails registered (+12V, 5V, 3.3V, and 5VSB) in the following oscilloscope screenshots. The bigger the fluctuations on the oscilloscope's screen, the bigger the ripple/noise. We set 0.01 V/Div (each vertical division/box equals 0.01 V) as the standard for all measurements.