Corsair RMx Series 1000 W Review

Name: Corsair RMx Series 1000 W
Brand: Corsair

crmaris

on Nov 17th, 2015,

in Power Supplies.

Manufacturer: Corsair

EMC Pre-Compliance Testing »

Ripple Measurements

You will see the ripple levels we measured on the RM1000x'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 RM1000x
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
10% Load	3.9 mV	4.8 mV	7.7 mV	3.6 mV	Pass
20% Load	4.8 mV	5.1 mV	8.2 mV	5.0 mV	Pass
30% Load	4.9 mV	5.1 mV	9.0 mV	5.5 mV	Pass
40% Load	5.2 mV	5.2 mV	9.1 mV	7.6 mV	Pass
50% Load	5.7 mV	5.5 mV	10.0 mV	7.4 mV	Pass
60% Load	6.7 mV	5.8 mV	10.3 mV	9.2 mV	Pass
70% Load	7.1 mV	6.8 mV	11.9 mV	9.8 mV	Pass
80% Load	7.8 mV	6.6 mV	13.1 mV	11.4 mV	Pass
90% Load	9.2 mV	7.4 mV	13.1 mV	12.6 mV	Pass
100% Load	12.2 mV	8.8 mV	16.3 mV	14.9 mV	Pass
110% Load	16.0 mV	9.3 mV	17.4 mV	16.0 mV	Pass
Crossload 1	6.5 mV	8.5 mV	11.0 mV	6.9 mV	Pass
Crossload 2	11.1 mV	8.3 mV	16.4 mV	13.7 mV	Pass

Ripple suppression is jaw-dropping. The combination of this platform with Type 4 cables that include additional ripple-filtering caps resulted in amazing ripple-filtering results. The RM1000x, like the RM1000i, will feed your system's precious components with ultra-clean DC voltages that will allow for the highest possible overclocks; that is, if you tend to overclock. Such clean rails will put sensitive components under the least amount of possible stress, which will increase their lifetime and their reliability. Ripple suppression is a key performance factor with PSUs, and we classify it as amongst the most important factors, right along with load regulation. We can tolerate a noisy PSU, but one with poor ripple suppresion will immediately be disqualified.

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.