Corsair HXi Series 1000 W Review 27

Corsair HXi Series 1000 W Review

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

Ripple Measurements

You will see the ripple levels we measured on the HX1000i's rails 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 HX1000i
Test12 V5 V3.3 V5VSBPass/Fail
10% Load40.7 mV5.5 mV15.8 mV3.6 mVPass
20% Load14.3 mV5.0 mV14.7 mV4.9 mVPass
30% Load12.5 mV6.3 mV15.8 mV5.2 mVPass
40% Load13.4 mV7.0 mV25.5 mV6.4 mVPass
50% Load15.2 mV7.0 mV19.7 mV7.4 mVPass
60% Load16.6 mV7.5 mV18.3 mV8.5 mVPass
70% Load18.9 mV8.5 mV20.5 mV10.1 mVPass
80% Load21.5 mV9.7 mV20.3 mV11.7 mVPass
90% Load23.2 mV10.3 mV22.6 mV13.3 mVPass
100% Load25.9 mV10.9 mV23.0 mV15.0 mVPass
110% Load29.5 mV12.1 mV23.4 mV16.2 mVPass
Crossload 117.5 mV8.0 mV16.7 mV6.8 mVPass
Crossload 225.0 mV9.7 mV21.2 mV13.2 mVPass
Ripple suppression was superb. Surely not at Super Flower's or Delta's levels, it was still close enough. CWT thankfully did a good job in ripple filtering this time around. We still remember the RM1000's lousy 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 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.



Ripple at 110% Load



Ripple at Crossload 1



Ripple at Crossload 2

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