Deepcool PQ850G 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% 5.183A 1.976A 1.976A 0.976A 84.997 86.928% 911 22.5 40.49C 0.973
12.233V 5.06V 3.34V 5.124V 97.78 44.72C 114.82V
20% 11.372A 2.966A 2.968A 1.175A 169.915 90.333% 971 24.7 40.55C 0.979
12.225V 5.056V 3.335V 5.108V 188.099 45.13C 114.79V
30% 17.916A 3.463A 3.467A 1.374A 254.923 91.162% 1068 28.0 41.27C 0.987
12.217V 5.053V 3.332V 5.093V 279.636 46.32C 114.77V
40% 24.476A 3.96A 3.966A 1.576A 340.024 91.215% 1195 31.4 41.60C 0.992
12.208V 5.05V 3.328V 5.078V 372.774 47.24C 114.74V
50% 30.685A 4.955A 4.967A 1.778A 424.847 90.834% 1337 34.8 42.20C 0.994
12.200V 5.046V 3.322V 5.062V 467.721 48.23C 114.71V
60% 36.879A 5.952A 5.97A 1.982A 509.388 90.274% 1492 37.8 42.81C 0.995
12.191V 5.041V 3.317V 5.046V 564.267 49.31C 114.68V
70% 43.144A 6.95A 6.977A 2.187A 594.696 89.541% 1693 41.8 43.20C 0.996
12.182V 5.037V 3.312V 5.03V 664.16 50.30C 114.64V
80% 49.419A 7.948A 7.985A 2.293A 679.506 88.724% 1900 45.1 43.94C 0.997
12.174V 5.032V 3.306V 5.016V 765.862 52.01C 114.62V
90% 56.093A 8.45A 8.478A 2.399A 764.931 87.91% 1913 45.6 44.29C 0.997
12.166V 5.029V 3.302V 5.003V 870.127 53.39C 114.59V
100% 62.708A 8.952A 9.003A 2.505A 849.619 87.036% 1916 45.7 45.64C 0.997
12.158V 5.026V 3.299V 4.99V 976.171 55.73C 114.55V
110% 69.075A 9.955A 10.113A 2.511A 935.011 85.864% 1916 45.7 46.95C 0.998
12.150V 5.022V 3.293V 4.979V 1088.951 57.78C 114.52V
CL1 0.113A 11.955A 12.006A 0A 101.277 83.636% 1053 27.6 41.25C 0.985
12.222V 5.035V 3.306V 5.135V 121.095 51.09C 114.81V
CL2 0.113A 19.867A 0A 0A 101.325 82.346% 1040 27.3 40.06C 0.985
12.226V 5.031V 3.336V 5.139V 123.049 50.90C 114.82V
CL3 0.113A 0A 20.057A 0A 67.378 76.107% 1037 27.2 41.29C 0.971
12.226V 5.055V 3.291V 5.139V 88.531 49.36C 114.83V
CL4 69.806A 0A 0A 0A 849.456 87.797% 1923 45.8 45.89C 0.997
12.169V 5.05V 3.331V 5.074V 967.527 53.82C 114.56V

Load regulation is within 1% at 12V and 5V, not tight at 3.3V, and loose at 5VSB.

Ripple Suppression

Ripple Measurements DeepCool PQ850G -115V
Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 16.8 mV 11.4 mV 12.0 mV 6.7 mV Pass
20% Load 15.7 mV 11.6 mV 13.6 mV 6.6 mV Pass
30% Load 16.2 mV 12.8 mV 14.3 mV 7.3 mV Pass
40% Load 17.0 mV 13.2 mV 14.5 mV 7.9 mV Pass
50% Load 18.1 mV 13.8 mV 15.4 mV 8.1 mV Pass
60% Load 17.8 mV 14.7 mV 17.9 mV 8.4 mV Pass
70% Load 18.7 mV 16.2 mV 17.1 mV 9.3 mV Pass
80% Load 21.9 mV 16.1 mV 19.0 mV 10.2 mV Pass
90% Load 17.8 mV 16.6 mV 20.9 mV 10.5 mV Pass
100% Load 29.8 mV 19.0 mV 22.2 mV 13.0 mV Pass
110% Load 31.3 mV 20.0 mV 24.7 mV 14.2 mV Pass
Crossload 1 23.2 mV 15.4 mV 16.5 mV 21.7 mV Pass
Crossload 2 18.7 mV 18.2 mV 15.1 mV 7.1 mV Pass
Crossload 3 17.2 mV 16.8 mV 16.1 mV 7.4 mV Pass
Crossload 4 29.8 mV 18.2 mV 20.0 mV 24.8 mV Pass

Ripple suppression is decent.

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