EVGA SuperNOVA NEX1500 Classified 1500 W Review

Name: EVGA SuperNOVA NEX1500 Classified 1500 W
Brand: EVGA

crmaris

on Sep 10th, 2012,

in Power Supplies.

Manufacturer: EVGA

Performance Rating & Performance per Dollar »

Ripple Measurements

In the following table, you will see the ripple levels that we measured on the main rails of the NEX1500. According to the ATX specification, the limits are 120 mV (+12V) and 50 mV (5V, 3.3V, and 5VSB).

Ripple Measurements EVGA NEX1500
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
20% Load	8.8 mV	6.3 mV	8.2 mV	11.7 mV	Pass
40% Load	11.5 mV	6.5 mV	10.0 mV	15.2 mV	Pass
50% Load	12.5 mV	6.7 mV	10.5 mV	16.6 mV	Pass
60% Load	12.7 mV	7.3 mV	10.7 mV	18.1 mV	Pass
80% Load	15.5 mV	7.8 mV	11.3 mV	21.9 mV	Pass
100% Load	23.3 mV	10.9 mV	14.4 mV	27.4 mV	Pass
110% Load	25.7 mV	13.4 mV	21.2 mV	29.6 mV	Pass
Crossload 1	8.7 mV	6.8 mV	9.3 mV	11.5 mV	Pass
Crossload 2	23.6 mV	26.6 mV	27.2 mV	27.7 mV	Pass

Ripple suppression at +12V is excellent and very good on the minor rails. EVGA and ETASIS did a very good job here, which is crucial for a PSU. The 5VSB rail also registered trouble-free ripple suppression, although its reading was not even close to the best we have seen. The trouble this 5VSB rail had with 100% and 110% load, and significantly increased ripple on the same tests, makes us think about the possibility of a defective 5VSB circuit in our sample. Unfortunately, test samples of this PSU are rare like a Unicorn, so the possibility of testing another one is pretty low.

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 to 0.01 V) as standard.