EVGA SuperNOVA G2 850 W Review

Name: EVGA SuperNOVA G2 850 W
Brand: EVGA

crmaris

on Jun 17th, 2014,

in Power Supplies.

Manufacturer: EVGA

Performance Rating, Performance per Dollar & Efficiency Rating »

Ripple Measurements

You will see the ripple levels we measured on the G2-850'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 G2-850
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
10% Load	5.6 mV	4.6 mV	7.4 mV	4.7 mV	Pass
20% Load	6.7 mV	4.8 mV	7.6 mV	4.8 mV	Pass
30% Load	7.8 mV	5.1 mV	8.0 mV	4.5 mV	Pass
40% Load	8.4 mV	5.3 mV	9.2 mV	4.8 mV	Pass
50% Load	10.1 mV	5.4 mV	8.8 mV	5.2 mV	Pass
60% Load	10.4 mV	5.8 mV	9.0 mV	5.5 mV	Pass
70% Load	10.7 mV	6.1 mV	10.0 mV	5.7 mV	Pass
80% Load	11.5 mV	6.5 mV	10.9 mV	7.6 mV	Pass
90% Load	12.7 mV	6.8 mV	11.8 mV	8.0 mV	Pass
100% Load	12.7 mV	8.1 mV	12.3 mV	10.4 mV	Pass
110% Load	13.7 mV	7.6 mV	13.1 mV	10.4 mV	Pass
Crossload 1	6.7 mV	6.5 mV	8.7 mV	9.6 mV	Pass
Crossload 2	12.6 mV	6.6 mV	12.9 mV	6.8 mV	Pass

Ripple suppression is one of the many strong points of this unit and its platform. Super Flower's implementations are among the best in this area, and the G2-850 is clear proof of this. Close to 10 mV ripple on all rails with full load and at over 47°C ambient is definitely something we don't see often!

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.