Corsair RM750e ATX v3.1 PSU Review

Load Regulation

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
10% 4.442A 1.999A 1.997A 1.004A 75.008 84.969% 0 <6.0 46.54°C 0.97
12.024V 5.002V 3.304V 4.98V 88.275 40.01°C 114.84V
20% 9.905A 3A 2.999A 1.207A 149.951 88.477% 0 <6.0 47.9°C 0.983
12.020V 5V 3.301V 4.973V 169.482 40.82°C 114.82V
30% 15.725A 3.502A 3.502A 1.41A 224.961 90.971% 0 <6.0 50.82°C 0.985
12.013V 4.998V 3.299V 4.965V 247.292 41.45°C 114.77V
40% 21.564A 4.004A 4.005A 1.614A 300.055 91.207% 0 <6.0 51.82°C 0.988
12.004V 4.996V 3.296V 4.958V 328.982 41.71°C 114.75V
50% 27.017A 5.008A 5.012A 1.819A 374.526 90.956% 405 <6.0 42.23°C 0.99
11.993V 4.993V 3.293V 4.95V 411.765 50.42°C 114.72V
60% 32.515A 6.014A 6.02A 2A 449.292 90.56% 550 <6.0 42.78°C 0.992
11.982V 4.989V 3.289V 4.942V 496.124 55.17°C 114.7V
70% 38.023A 7.02A 7.03A 2.23A 524.291 89.971% 823 17.7 43.04°C 0.993
11.971V 4.986V 3.286V 4.933V 582.734 56.32°C 114.67V
80% 43.612A 8.027A 8.041A 2.334A 599.483 89.263% 1121 28.9 43.55°C 0.993
11.960V 4.983V 3.283V 4.927V 671.591 56.51°C 114.64V
90% 49.547A 8.533A 8.535A 2.439A 674.515 88.53% 1485 37.2 44.84°C 0.994
11.948V 4.98V 3.28V 4.92V 761.912 56.41°C 114.62V
100% 55.293A 9.041A 9.061A 3.062A 749.74 87.65% 1807 42.8 45.12°C 0.994
11.937V 4.977V 3.278V 4.899V 855.376 56.43°C 114.59V
110% 60.916A 10.051A 10.17A 3.065A 824.758 86.34% 2008 45.6 46.83°C 0.98
11.926V 4.974V 3.274V 4.895V 955.257 57.7°C 114.57V
CL1 0.117A 13.275A 13.299A 0A 111.295 82.521% 1107 28.7 42.05°C 0.98
12.012V 4.987V 3.286V 5.007V 134.869 52.45°C 114.84V
CL2 0.115A 20.035A 0A 0A 101.338 81.482% 1217 32.4 42.54°C 0.979
12.017V 4.989V 3.296V 5.011V 124.367 49.11°C 114.82V
CL3 0.115A 0A 20.08A 0A 67.382 76.282% 844 18.5 41.55°C 0.971
12.016V 4.998V 3.287V 5.01V 88.333 47.64°C 114.83V
CL4 62.731A 0A 0A 0A 749.525 88.603% 1506 37.6 45.53°C 0.994
11.948V 4.992V 3.292V 4.982V 845.931 54.27°C 114.58V

Load regulation is within 1% on all major rails.

Ripple Suppression

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 20.8 mV 14.1 mV 15.0 mV 13.7 mV Pass
20% Load 20.9 mV 14.5 mV 15.2 mV 14.6 mV Pass
30% Load 23.5 mV 14.9 mV 16.4 mV 14.8 mV Pass
40% Load 22.3 mV 15.9 mV 16.4 mV 15.1 mV Pass
50% Load 23.9 mV 15.6 mV 16.7 mV 16.5 mV Pass
60% Load 24.3 mV 15.1 mV 16.6 mV 15.8 mV Pass
70% Load 26.5 mV 16.1 mV 16.8 mV 19.6 mV Pass
80% Load 39.4 mV 25.9 mV 32.3 mV 21.4 mV Pass
90% Load 42.0 mV 25.8 mV 34.3 mV 21.7 mV Pass
100% Load 45.6 mV 25.7 mV 32.2 mV 22.8 mV Pass
110% Load 51.3 mV 25.5 mV 32.1 mV 24.8 mV Pass
Crossload 1 31.2 mV 15.6 mV 17.4 mV 12.2 mV Pass
Crossload 2 30.8 mV 17.6 mV 16.5 mV 11.9 mV Pass
Crossload 3 21.4 mV 14.5 mV 19.9 mV 11.5 mV Pass
Crossload 4 47.0 mV 24.8 mV 31.8 mV 17.6 mV Pass

Ripple suppression is good at 230V but not at 115V, especially at 3.3V. Apparently the higher energy losses at 115V affect ripple at high loads.

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