MSI MAG A850GL PCIE5 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% 5.217A 2A 2.019A 0.986A 85 87.597% 1119 28.8 40.05C 0.957
12.153V 5V 3.269V 5.07V 97.034 44.14C 114.82V
20% 11.447A 3.002A 3.031A 1.186A 169.936 90.641% 1123 28.9 40.75C 0.977
12.147V 4.997V 3.267V 5.059V 187.48 45.10C 114.79V
30% 18.031A 3.503A 3.538A 1.387A 254.948 91.402% 1124 29.0 41.33C 0.981
12.140V 4.995V 3.265V 5.046V 278.932 45.99C 114.76V
40% 24.628A 4.006A 4.045A 1.59A 340.04 91.495% 1130 29.2 41.79C 0.978
12.134V 4.993V 3.263V 5.033V 371.646 46.84C 114.74V
50% 30.868A 5.009A 5.06A 1.793A 424.857 91.129% 1133 29.4 42.31C 0.977
12.127V 4.992V 3.261V 5.02V 466.215 47.78C 114.7V
60% 37.090A 6.012A 6.075A 1.998A 509.365 90.64% 1139 29.5 42.69C 0.979
12.121V 4.99V 3.259V 5.007V 561.963 48.76C 114.68V
70% 43.383A 7.017A 7.092A 2.203A 594.674 90.001% 1143 29.6 43.11C 0.981
12.115V 4.988V 3.257V 4.993V 660.745 50.17C 114.64V
80% 49.693A 8.023A 8.112A 2.309A 679.516 89.092% 1679 40.3 43.75C 0.982
12.107V 4.985V 3.254V 4.982V 762.71 51.83C 114.61V
90% 56.426A 8.531A 8.613A 2.414A 765.015 88.172% 2383 48.2 44.09C 0.983
12.096V 4.982V 3.251V 4.971V 867.639 53.13C 114.58V
100% 63.058A 9.035A 9.139A 2.521A 849.7 87.329% 2379 48.2 45.04C 0.985
12.092V 4.98V 3.25V 4.959V 972.994 55.09C 114.55V
110% 69.444A 10.043A 10.253A 2.525A 935.088 86.279% 2382 48.2 46.95C 0.986
12.087V 4.978V 3.248V 4.95V 1083.803 57.91C 114.51V
CL1 0.115A 13.278A 13.424A 0A 111.304 83.207% 1155 29.9 42.00C 0.972
12.161V 4.986V 3.255V 5.084V 133.771 47.48C 114.81V
CL2 0.114A 20.031A 0A 0A 101.341 81.293% 1159 29.9 41.21C 0.972
12.166V 4.99V 3.269V 5.089V 124.662 48.30C 114.82V
CL3 0.114A 0A 20.264A 0A 67.386 75.904% 1131 29.3 40.33C 0.958
12.163V 5V 3.257V 5.089V 88.779 49.42C 114.83V
CL4 70.224A 0A 0A 0A 849.566 88.212% 2393 48.3 45.98C 0.985
12.099V 5V 3.269V 5.027V 963.099 56.96C 114.56V

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

Ripple Suppression

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 17.1 mV 11.6 mV 13.1 mV 7.8 mV Pass
20% Load 20.7 mV 10.8 mV 12.0 mV 11.3 mV Pass
30% Load 23.5 mV 11.7 mV 13.6 mV 12.7 mV Pass
40% Load 21.6 mV 12.0 mV 13.9 mV 11.2 mV Pass
50% Load 14.4 mV 10.9 mV 12.1 mV 10.8 mV Pass
60% Load 13.5 mV 10.9 mV 12.2 mV 13.8 mV Pass
70% Load 14.9 mV 10.5 mV 12.5 mV 17.5 mV Pass
80% Load 16.0 mV 13.0 mV 14.4 mV 9.7 mV Pass
90% Load 17.4 mV 13.8 mV 15.0 mV 13.6 mV Pass
100% Load 27.6 mV 13.8 mV 16.0 mV 15.2 mV Pass
110% Load 26.8 mV 13.9 mV 16.2 mV 15.9 mV Pass
Crossload 1 29.6 mV 12.7 mV 14.5 mV 7.0 mV Pass
Crossload 2 20.1 mV 19.9 mV 16.1 mV 8.7 mV Pass
Crossload 3 18.8 mV 12.3 mV 18.8 mV 7.3 mV Pass
Crossload 4 25.1 mV 11.7 mV 14.8 mV 9.9 mV Pass

Ripple suppression is good on all rails.

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