Corsair AXi Series 1500 W Review

Name: Corsair AXi Series 1500 W
Brand: Corsair

crmaris

on May 26th, 2014,

in Power Supplies.

Manufacturer: Corsair

Performance Rating, Performance per Dollar, Noise & Efficiency Rating »

Ripple Measurements

You will see the ripple levels we measured on the rails of the AX1500i 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 - Corsair AX1500i
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
10% Load	5.7 mV	6.8 mV	8.5 mV	4.1 mV	Pass
20% Load	7.3 mV	7.0 mV	8.7 mV	3.1 mV	Pass
30% Load	8.7 mV	7.0 mV	8.7 mV	2.9 mV	Pass
40% Load	9.2 mV	8.8 mV	9.5 mV	6.5 mV	Pass
50% Load	9.8 mV	8.2 mV	9.7 mV	5.4 mV	Pass
60% Load	10.6 mV	7.8 mV	9.4 mV	3.3 mV	Pass
70% Load	10.7 mV	8.3 mV	9.6 mV	4.2 mV	Pass
80% Load	11.4 mV	8.8 mV	9.6 mV	4.0 mV	Pass
90% Load	11.9 mV	9.5 mV	9.8 mV	4.1 mV	Pass
100% Load	13.7 mV	9.9 mV	9.9 mV	5.0 mV	Pass
110% Load	15.6 mV	10.4 mV	10.1 mV	5.5 mV	Pass
Crossload 1	13.4 mV	11.6 mV	7.7 mV	5.3 mV	Pass
Crossload 2	14.0 mV	6.9 mV	8.7 mV	6.6 mV	Pass

Ripple suppression was simply out of this world! Flextronics showed all other manufacturers what truly impressive ripple filtering looks like! We have no words to describe a PSU that registers 15.6 mV at +12V and close to 10 mV on its minor rails with 1.65 kW load. If they keep on producing units like this one, there will be no reason to take ripple measurements.

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.