Enermax Revolution X't 630 W Review

Name: Enermax Revolution X't 630 W
Brand: Enermax

crmaris

on Nov 14th, 2013,

in Power Supplies.

Manufacturer: Enermax

Performance Rating, Performance per Dollar & Noise Rating »

Ripple Measurements

You will see the ripple levels we measured on the main rails of the ERX630AWT 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 Enermax ERX630AWT
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
20% Load	23.8 mV	16.9 mV	21.6 mV	16.0 mV	Pass
40% Load	32.3 mV	23.0 mV	30.6 mV	20.0 mV	Pass
50% Load	37.9 mV	26.5 mV	33.8 mV	22.8 mV	Pass
60% Load	43.3 mV	29.8 mV	37.1 mV	25.4 mV	Pass
80% Load	54.7 mV	36.7 mV	43.3 mV	31.3 mV	Pass
100% Load	66.1 mV	41.2 mV	47.3 mV	36.1 mV	Pass
110% Load	73.1 mV	44.2 mV	49.9 mV	38.9 mV	Pass
Crossload 1	31.4 mV	20.3 mV	28.2 mV	18.4 mV	Pass
Crossload 2	62.9 mV	39.6 mV	43.9 mV	33.6 mV	Pass

Unfortunately, ripple suppression isn't among this unit's strongest attributes, since all rails registered high readings with the 3.3 V rail being the worst performer of all. We don't want to see ripple over 40-50 mV on the +12V rail of such a unit, and ripple over 40 mV on the minor rails just looks plain bad. Enermax should look into their design since they have the necessary know-how to drastically improve ripple suppression.

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 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.