Enermax NAXN ADV 650 W Review

Name: Enermax NAXN ADV 650 W
Brand: Enermax

crmaris

on May 5th, 2013,

in Power Supplies.

Manufacturer: Enermax

Performance Rating & Performance per Dollar »

Ripple Measurements

You will see the ripple levels that we measured on the main rails of the ETL650AWT 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 ETL650AWT
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
20% Load	28.3 mV	11.6 mV	7.4 mV	12.3 mV	Pass
40% Load	32.5 mV	14.4 mV	7.7 mV	14.7 mV	Pass
50% Load	33.8 mV	15.9 mV	7.9 mV	17.3 mV	Pass
60% Load	35.0 mV	17.9 mV	8.2 mV	14.9 mV	Pass
80% Load	34.8 mV	23.0 mV	9.8 mV	18.6 mV	Pass
100% Load	48.3 mV	29.5 mV	15.4 mV	20.5 mV	Pass
110% Load	57.7 mV	34.3 mV	19.7 mV	24.3 mV	Pass
Crossload 1	38.7 mV	25.5 mV	7.3 mV	13.5 mV	Pass
Crossload 2	46.8 mV	15.9 mV	19.7 mV	20.2 mV	Pass

Ripple suppression is good on all rails, especially for a mainstream unit like this one. The PSU still manages to restrict ripple fairly well with even a 110% load, regardless of the high ambient in which we conducted all of our tests. This is good news since many mainstream units can't handle high loads and increased operational temperatures well.

Ripple at Full Load

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