DeepCool PN850M 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% 5.279A 1.986A 1.968A 0.991A 85.001 87.371% 1105 26.7 40.08C 0.96
12.011V 5.035V 3.353V 5.048V 97.286 44.36C 114.83V
20% 11.582A 2.979A 2.954A 1.192A 169.93 90.581% 1111 26.7 40.59C 0.974
12.004V 5.036V 3.352V 5.033V 187.603 45.09C 114.8V
30% 18.245A 3.476A 3.447A 1.395A 254.931 91.219% 1116 26.7 41.25C 0.978
11.997V 5.034V 3.35V 5.018V 279.469 46.28C 114.77V
40% 24.923A 3.973A 3.941A 1.599A 340.015 91.325% 1118 26.8 41.94C 0.98
11.990V 5.034V 3.349V 5.003V 372.316 47.45C 114.74V
50% 31.238A 4.967A 4.929A 1.805A 424.794 90.951% 1123 26.9 42.50C 0.98
11.982V 5.034V 3.347V 4.987V 467.058 48.58C 114.71V
60% 37.539A 5.96A 5.918A 2A 509.271 90.403% 1128 26.9 42.86C 0.981
11.975V 5.034V 3.346V 4.971V 563.336 49.41C 114.69V
70% 43.915A 6.951A 6.906A 2.221A 594.666 89.687% 1133 27.0 43.32C 0.983
11.968V 5.035V 3.345V 4.953V 663.062 50.33C 114.64V
80% 50.299A 7.947A 7.898A 2.327A 679.467 88.749% 1693 39.3 44.55C 0.984
11.960V 5.033V 3.342V 4.941V 765.604 52.59C 114.63V
90% 57.095A 8.449A 8.384A 2.435A 764.894 87.815% 2316 47.0 44.58C 0.986
11.952V 5.029V 3.339V 4.928V 871.024 53.65C 114.58V
100% 63.634A 8.952A 8.901A 3.062A 849.674 86.958% 2311 47.0 45.39C 0.987
11.943V 5.026V 3.337V 4.899V 977.107 55.45C 114.55V
110% 70.047A 9.948A 9.985A 3.068A 934.281 85.799% 2312 47.0 46.58C 0.988
11.935V 5.026V 3.335V 4.889V 1088.925 57.49C 114.53V
CL1 0.115A 13.14A 13.08A 0A 111.289 82.959% 1139 27.1 41.34C 0.97
12.010V 5.038V 3.341V 5.07V 134.148 46.85C 114.81V
CL2 0.115A 19.796A 0A 0A 101.331 80.686% 1137 27.1 40.14C 0.968
12.017V 5.049V 3.361V 5.075V 125.589 47.23C 114.82V
CL3 0.115A 0A 19.754A 0A 67.379 75.558% 1096 26.6 40.22C 0.96
12.006V 5.059V 3.341V 5.076V 89.173 49.25C 114.83V
CL4 71.096A 0A 0A 0A 849.46 87.879% 2305 46.8 45.73C 0.987
11.949V 5.049V 3.361V 5.009V 966.641 56.70C 114.56V

Load regulation is tight overall, especially on the minor rails.

Ripple Suppression

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 25.0 mV 14.1 mV 15.6 mV 8.3 mV Pass
20% Load 27.8 mV 13.6 mV 15.0 mV 8.8 mV Pass
30% Load 26.6 mV 14.2 mV 15.5 mV 12.0 mV Pass
40% Load 19.6 mV 14.7 mV 15.7 mV 10.6 mV Pass
50% Load 16.5 mV 14.2 mV 15.8 mV 11.9 mV Pass
60% Load 17.9 mV 14.5 mV 15.5 mV 14.8 mV Pass
70% Load 16.7 mV 14.9 mV 15.1 mV 15.4 mV Pass
80% Load 20.3 mV 15.9 mV 17.6 mV 17.0 mV Pass
90% Load 20.0 mV 16.2 mV 18.7 mV 15.5 mV Pass
100% Load 32.1 mV 16.8 mV 20.3 mV 18.4 mV Pass
110% Load 31.8 mV 17.7 mV 19.3 mV 18.4 mV Pass
Crossload 1 43.1 mV 15.9 mV 20.5 mV 9.6 mV Pass
Crossload 2 32.5 mV 21.9 mV 18.5 mV 10.0 mV Pass
Crossload 3 28.0 mV 14.3 mV 20.1 mV 7.8 mV Pass
Crossload 4 29.6 mV 15.9 mV 16.9 mV 11.7 mV Pass

Ripple suppression is not the best in this category, but it is still satisfactory.

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