Aerocool GT-SG 700 W Review

Name: Aerocool GT-SG 700 W
Brand: Aerocool

crmaris

on Feb 11th, 2013,

in Power Supplies.

Manufacturer: Aerocool

Performance Rating & Performance per Dollar »

Ripple Measurements

You will see the ripple levels that we measured on the main rails of the GT-700SG 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 Aerocool GT-700SG
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
20% Load	27.6 mV	8.9 mV	6.1 mV	7.4 mV	Pass
40% Load	25.9 mV	12.3 mV	6.9 mV	11.1 mV	Pass
50% Load	23.1 mV	14.2 mV	7.4 mV	11.9 mV	Pass
60% Load	24.1 mV	15.0 mV	8.4 mV	14.1 mV	Pass
80% Load	29.3 mV	17.8 mV	8.7 mV	17.3 mV	Pass
100% Load	35.6 mV	20.3 mV	10.1 mV	19.4 mV	Pass
110% Load	38.9 mV	21.6 mV	10.8 mV	20.4 mV	Pass
Crossload 1	27.9 mV	10.5 mV	7.7 mV	13.7 mV	Pass
Crossload 2	35.7 mV	19.2 mV	9.1 mV	11.8 mV	Pass

Ripple suppression is surprisingly good, especially for a PSU made by HEC; PSUs by this OEM haven't fared well in this area. They actually did a really good job with this platform by effectively suppressing ripple. Ripple at +12V never surpassed 40 mV and even stayed below a third of the limit with a 110% load and an ambient that exceeded 45°C. This is what we call fine ripple suppression!

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.