Thermaltake Toughpower GF A3 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% 5.203A 1.975A 1.967A 0.99A 85.002 87.719% 0 <6.0 44.23C 0.974
12.185V 5.065V 3.355V 5.05V 96.906 39.97C 114.84V
20% 11.415A 2.968A 2.959A 1.192A 169.931 90.784% 1040 26.4 40.70C 0.971
12.180V 5.055V 3.346V 5.032V 187.181 45.39C 114.81V
30% 17.980A 3.468A 3.461A 1.396A 254.924 91.745% 1041 26.5 41.46C 0.979
12.173V 5.047V 3.337V 5.015V 277.859 46.56C 114.78V
40% 24.550A 3.969A 3.965A 1.601A 340.001 91.858% 1043 26.5 41.81C 0.984
12.171V 5.04V 3.329V 4.998V 370.142 47.39C 114.75V
50% 30.751A 4.969A 4.969A 1.808A 424.777 91.517% 1044 26.5 42.13C 0.988
12.171V 5.032V 3.32V 4.979V 464.169 48.21C 114.72V
60% 36.918A 5.973A 5.98A 2A 509.23 90.802% 1046 26.6 42.69C 0.991
12.176V 5.023V 3.311V 4.96V 560.811 49.24C 114.69V
70% 43.153A 6.979A 6.997A 2.227A 594.61 90.162% 1251 32.1 43.39C 0.993
12.178V 5.015V 3.302V 4.94V 659.498 50.44C 114.66V
80% 49.401A 7.99A 8.019A 2.335A 679.451 89.463% 1253 32.2 43.91C 0.994
12.177V 5.007V 3.292V 4.924V 759.476 51.98C 114.63V
90% 56.039A 8.502A 8.528A 2.445A 764.923 88.632% 1576 38.5 44.39C 0.995
12.178V 4.998V 3.283V 4.908V 863.036 53.43C 114.59V
100% 62.437A 9.018A 9.072A 3.081A 849.773 87.681% 2160 46.7 45.09C 0.995
12.173V 4.99V 3.274V 4.869V 969.167 55.17C 114.56V
110% 68.706A 10.036A 10.202A 3.087A 934.336 86.772% 2165 46.7 46.64C 0.996
12.168V 4.982V 3.264V 4.859V 1076.767 57.57C 114.53V
CL1 0.113A 11.933A 11.907A 0A 101.277 84.931% 1039 26.4 40.36C 0.972
12.185V 5.044V 3.334V 5.078V 119.242 45.88C 114.84V
CL2 0.113A 19.812A 0A 0A 101.363 83.544% 1038 26.3 40.35C 0.971
12.186V 5.046V 3.349V 5.084V 121.33 47.43C 114.84V
CL3 0.113A 0A 19.809A 0A 67.376 78.908% 1038 26.3 40.35C 0.97
12.183V 5.059V 3.332V 5.081V 85.385 49.44C 114.85V
CL4 69.814A 0A 0A 0.001A 849.498 88.789% 1448 36.1 45.06C 0.995
12.168V 5.011V 3.296V 5.025V 956.765 56.03C 114.57V

Load regulation is extra tight at 12V, the most important rail. Unfortunately, this is not the case for the rest rails, where load regulation is loose.

Ripple Suppression

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 8.3 mV 10.8 mV 8.1 mV 4.4 mV Pass
20% Load 11.2 mV 11.0 mV 8.9 mV 4.8 mV Pass
30% Load 13.3 mV 12.4 mV 9.3 mV 5.6 mV Pass
40% Load 18.2 mV 12.1 mV 10.8 mV 6.2 mV Pass
50% Load 22.8 mV 12.8 mV 11.5 mV 6.9 mV Pass
60% Load 21.6 mV 14.7 mV 13.1 mV 7.6 mV Pass
70% Load 25.1 mV 14.2 mV 13.9 mV 8.4 mV Pass
80% Load 27.0 mV 15.0 mV 15.1 mV 9.0 mV Pass
90% Load 29.8 mV 16.0 mV 15.9 mV 9.7 mV Pass
100% Load 39.0 mV 17.9 mV 19.1 mV 12.0 mV Pass
110% Load 42.2 mV 20.1 mV 20.5 mV 12.9 mV Pass
Crossload 1 17.1 mV 15.5 mV 13.2 mV 8.4 mV Pass
Crossload 2 15.9 mV 17.9 mV 12.0 mV 8.5 mV Pass
Crossload 3 11.6 mV 12.8 mV 12.0 mV 11.7 mV Pass
Crossload 4 35.7 mV 15.7 mV 17.6 mV 13.6 mV Pass

Ripple suppression is decent but not competitive, especially at 12V. In any case, I cannot call below 40mV ripple on the 12V rail at full load and 47C as mediocre.

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