Asus ROG Loki SFX-L 850W 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% 5.263A 1.968A 1.975A 0.992A 84.983 88.679% 0 <6.0 44.81C 0.959
12.044V 5.08V 3.34V 5.037V 95.83 40.51C 114.91V
20% 11.542A 2.953A 2.965A 1.193A 169.889 91.577% 0 <6.0 45.54C 0.965
12.043V 5.078V 3.338V 5.027V 185.513 40.79C 114.89V
30% 18.175A 3.445A 3.461A 1.395A 254.882 92.385% 0 <6.0 46.29C 0.975
12.041V 5.078V 3.336V 5.017V 275.891 41.22C 114.87V
40% 24.819A 3.938A 3.958A 1.598A 339.963 92.473% 0 <6.0 47.33C 0.983
12.038V 5.077V 3.334V 5.007V 367.637 41.64C 114.85V
50% 31.102A 4.926A 4.952A 1.802A 424.776 92.124% 1126 23.9 42.36C 0.988
12.034V 5.074V 3.331V 4.995V 461.095 48.45C 114.84V
60% 37.364A 5.914A 5.946A 2A 509.272 91.678% 1314 30.3 42.93C 0.99
12.031V 5.072V 3.329V 4.985V 555.5 49.46C 114.82V
70% 43.695A 6.903A 6.943A 2.212A 594.618 90.75% 1580 36.9 43.68C 0.992
12.027V 5.07V 3.327V 4.973V 655.22 50.75C 114.79V
80% 50.037A 7.893A 7.938A 2.317A 679.457 90.065% 1760 40.5 44.05C 0.993
12.023V 5.067V 3.325V 4.964V 754.4 52.14C 114.77V
90% 56.778A 8.39A 8.425A 2.422A 764.877 89.338% 1985 43.1 45.04C 0.994
12.019V 5.065V 3.322V 4.955V 856.16 54.10C 114.76V
100% 63.469A 8.885A 8.942A 2.528A 849.616 88.493% 2011 43.2 45.62C 0.995
12.013V 5.065V 3.32V 4.945V 960.093 55.63C 114.71V
110% 69.900A 9.877A 10.033A 2.532A 934.996 87.594% 2005 43.1 47.48C 0.996
12.006V 5.063V 3.318V 4.938V 1067.43 58.39C 114.7V
CL1 0.116A 13.058A 13.074A 0A 111.287 84.892% 1506 36.4 42.81C 0.968
12.035V 5.07V 3.342V 5.047V 131.093 48.30C 114.9V
CL2 0.116A 19.751A 0A 0A 101.402 83.697% 1138 24.9 40.93C 0.969
12.042V 5.064V 3.346V 5.053V 121.151 48.00C 114.89V
CL3 0.116A 0A 19.751A 0A 67.372 80.093% 1226 29.1 40.46C 0.944
12.040V 5.089V 3.341V 5.049V 84.117 49.56C 114.91V
CL4 70.759A 0A 0A 0A 849.631 88.799% 1998 43.0 46.29C 0.995
12.008V 5.078V 3.321V 5.003V 956.802 56.99C 114.72V

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

Ripple Suppression

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 8.9 mV 10.3 mV 13.5 mV 3.8 mV Pass
20% Load 9.7 mV 13.0 mV 15.2 mV 4.0 mV Pass
30% Load 10.5 mV 10.5 mV 13.1 mV 4.5 mV Pass
40% Load 11.2 mV 10.6 mV 13.4 mV 4.7 mV Pass
50% Load 12.0 mV 10.3 mV 13.8 mV 4.9 mV Pass
60% Load 13.4 mV 10.7 mV 13.4 mV 5.2 mV Pass
70% Load 14.0 mV 11.5 mV 14.4 mV 5.2 mV Pass
80% Load 15.3 mV 12.1 mV 14.6 mV 5.3 mV Pass
90% Load 16.2 mV 12.4 mV 15.4 mV 5.9 mV Pass
100% Load 22.8 mV 13.6 mV 16.2 mV 6.5 mV Pass
110% Load 24.0 mV 13.2 mV 16.2 mV 7.4 mV Pass
Crossload 1 17.1 mV 12.3 mV 15.6 mV 16.9 mV Pass
Crossload 2 17.3 mV 15.1 mV 12.8 mV 17.8 mV Pass
Crossload 3 15.8 mV 9.1 mV 17.0 mV 17.5 mV Pass
Crossload 4 21.0 mV 11.7 mV 15.4 mV 18.1 mV Pass

Ripple suppression is good.

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