XPG KYBER 750W 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% 4.412A 1.996A 2.007A 0.99A 75.002 86.79% 861 19.1 34.32C 0.951
12.105V 5.01V 3.289V 5.053V 86.419 38.54C 114.89V
20% 9.838A 2.996A 3.012A 1.191A 149.943 90.108% 866 19.2 34.62C 0.97
12.099V 5.007V 3.287V 5.039V 166.404 39.23C 114.86V
30% 15.620A 3.497A 3.516A 1.393A 224.948 91.109% 869 19.3 35.20C 0.979
12.093V 5.005V 3.285V 5.024V 246.899 40.13C 114.84V
40% 21.412A 3.998A 4.02A 1.597A 300.034 91.036% 874 18.8 35.65C 0.978
12.088V 5.003V 3.284V 5.009V 329.574 41.14C 114.81V
50% 26.813A 5.001A 5.029A 1.803A 374.454 90.747% 879 19.4 36.37C 0.98
12.082V 5V 3.281V 4.993V 412.635 42.20C 114.79V
60% 32.259A 6.004A 6.037A 2A 449.332 90.277% 884 19.5 36.69C 0.979
12.077V 4.997V 3.28V 4.977V 497.726 43.15C 114.76V
70% 37.712A 7.007A 7.046A 2.218A 524.308 89.59% 1110 26.6 37.30C 0.98
12.070V 4.996V 3.279V 4.959V 585.233 44.34C 114.72V
80% 43.240A 8.002A 8.059A 2.325A 599.449 88.792% 1528 35.8 37.71C 0.982
12.063V 4.992V 3.276V 4.946V 675.118 45.57C 114.7V
90% 49.111A 8.518A 8.555A 2.433A 674.536 88.064% 1919 42.1 38.35C 0.983
12.055V 4.989V 3.273V 4.932V 765.962 47.19C 114.67V
100% 54.787A 9.024A 9.082A 3.058A 749.757 87.162% 2332 46.1 39.30C 0.985
12.048V 4.986V 3.271V 4.905V 860.189 48.96C 114.64V
110% 60.332A 10.033A 10.189A 3.066A 824.778 86.224% 2333 46.1 40.49C 0.986
12.041V 4.983V 3.268V 4.893V 956.552 51.33C 114.6V
CL1 0.116A 13.266A 13.335A 0A 111.293 84.133% 900 19.7 34.22C 0.966
12.100V 4.989V 3.277V 5.061V 132.283 41.57C 114.87V
CL2 0.114A 20.017A 0A 0.001A 101.342 82.502% 897 19.6 34.95C 0.963
12.104V 4.993V 3.291V 5.067V 122.836 40.42C 114.87V
CL3 0.115A 0A 20.099A 0A 67.415 77.268% 878 19.1 34.71C 0.953
12.104V 5.015V 3.284V 5.068V 87.248 39.49C 114.89V
CL4 62.192A 0A 0A 0.001A 749.699 87.904% 2323 46.0 39.06C 0.985
12.055V 5.009V 3.287V 4.992V 852.859 47.49C 114.64V

Load regulation is within 1% on all major rails, so it is tight enough.

Ripple Suppression

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 26.3 mV 11.8 mV 13.9 mV 25.2 mV Pass
20% Load 26.9 mV 12.3 mV 16.0 mV 26.0 mV Pass
30% Load 27.2 mV 12.3 mV 16.4 mV 28.7 mV Pass
40% Load 26.1 mV 13.1 mV 15.8 mV 29.7 mV Pass
50% Load 26.3 mV 13.5 mV 15.8 mV 29.9 mV Pass
60% Load 25.3 mV 14.6 mV 16.1 mV 31.1 mV Pass
70% Load 26.6 mV 16.6 mV 24.2 mV 34.4 mV Pass
80% Load 28.8 mV 19.1 mV 19.3 mV 36.7 mV Pass
90% Load 30.3 mV 21.4 mV 21.9 mV 38.8 mV Pass
100% Load 40.7 mV 22.0 mV 21.4 mV 39.2 mV Pass
110% Load 43.1 mV 24.3 mV 22.2 mV 38.9 mV Pass
Crossload 1 46.2 mV 20.2 mV 16.9 mV 26.0 mV Pass
Crossload 2 33.8 mV 29.3 mV 15.9 mV 27.8 mV Pass
Crossload 3 40.5 mV 16.7 mV 20.9 mV 26.4 mV Pass
Crossload 4 34.8 mV 19.1 mV 22.6 mV 33.0 mV Pass

Ripple suppression is increased at 12V, mainly in the full load test, where the difference with 90% load is high. It should be below 20 mV on the minor rails, ideally. Ripple is also increased at 5VSB.

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