PSUs

darkFlash UPMOST 1250W ATX v3.0 PSU Review

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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% 8.556A 1.994A 1.967A 0.986A 124.967 85.745% 1188 34 40.01°C 0.987
12.080V 5.015V 3.356V 5.072V 145.495 42.8°C 114.71V
20% 18.138A 2.992A 2.953A 1.187A 249.972 89.994% 1227 34.5 40.57°C 0.995
12.078V 5.013V 3.353V 5.055V 277.769 43.75°C 114.83V
30% 28.019A 3.493A 3.447A 1.389A 374.436 91.074% 1312 36.7 41.2°C 0.997
12.077V 5.011V 3.351V 5.04V 411.137 45.26°C 114.79V
40% 37.962A 3.993A 3.941A 1.593A 499.617 91.139% 1446 39.3 41.77°C 0.998
12.076V 5.01V 3.35V 5.024V 548.195 46.31°C 114.74V
50% 47.570A 4.992A 4.929A 1.798A 624.949 90.78% 1603 41.4 42.36°C 0.998
12.076V 5.008V 3.348V 5.007V 688.412 47.29°C 114.69V
60% 57.118A 5.994A 5.919A 2A 749.454 90.239% 1759 43.8 42.54°C 0.998
12.074V 5.006V 3.346V 4.991V 830.518 47.87°C 114.65V
70% 66.731A 6.995A 6.909A 2.212A 874.762 89.539% 1937 46.6 43.48°C 0.998
12.074V 5.005V 3.344V 4.973V 976.959 49.45°C 114.6V
80% 76.338A 7.994A 7.899A 2.319A 999.56 88.744% 1974 47.8 43.97°C 0.999
12.074V 5.003V 3.342V 4.959V 1126.34 50.89°C 114.55V
90% 86.337A 8.496A 8.38A 2.427A 1124.957 87.847% 1981 47.9 44.73°C 0.999
12.074V 5.002V 3.342V 4.944V 1280.6 52.79°C 114.5V
100% 96.265A 8.997A 8.89A 2.536A 1249.704 86.831% 1985 47.9 45.95°C 0.999
12.076V 5.001V 3.341V 4.929V 1439.232 55.52°C 114.43V
110% 105.908A 9.998A 9.97A 2.543A 1375.117 85.555% 1986 47.9 46.79°C 0.999
12.079V 5V 3.341V 4.917V 1607.281 58.51°C 114.38V
CL1 0.114A 11.993A 11.804A 0A 101.28 81.986% 0 <6.0 46.46°C 0.984
12.088V 5.019V 3.363V 5.094V 123.372 40.22°C 114.64V
CL2 0.114A 19.898A 0A 0A 101.337 80.077% 1300 36.3 41.41°C 0.983
12.094V 5.023V 3.356V 5.096V 126.433 46.25°C 114.62V
CL3 0.114A 0A 19.579A 0A 67.395 74.572% 1190 34 40.19°C 0.977
12.092V 5.012V 3.372V 5.096V 90.375 43.42°C 114.89V
CL4 103.601A 0A 0A 0A 1249.547 87.339% 1995 48.2 45.79°C 0.999
12.061V 5.007V 3.347V 5.017V 1430.714 59.42°C 114.46V

Load regulation is tight on all rails but 5VSB, where it doesn’t matter much.

Ripple Suppression

Test 12V 5V 3.3V 5VSB Pass/Fail
10% Load 15.4 mV 14.6 mV 15.4 mV 15.5 mV Pass
20% Load 15.7 mV 15.3 mV 14.6 mV 14.5 mV Pass
30% Load 16.4 mV 15.2 mV 15.1 mV 16.1 mV Pass
40% Load 15.9 mV 16.2 mV 15.7 mV 16.6 mV Pass
50% Load 18.2 mV 16.2 mV 15.7 mV 14.9 mV Pass
60% Load 19.1 mV 17.4 mV 18.7 mV 20.1 mV Pass
70% Load 21.3 mV 18.4 mV 17.3 mV 18.3 mV Pass
80% Load 24.4 mV 19.4 mV 21.0 mV 18.9 mV Pass
90% Load 31.1 mV 21.1 mV 22.0 mV 18.0 mV Pass
100% Load 55.6 mV 22.5 mV 25.5 mV 19.3 mV Pass
110% Load 63.9 mV 24.6 mV 25.3 mV 18.6 mV Pass
Crossload 1 14.8 mV 20.7 mV 23.7 mV 14.0 mV Pass
Crossload 2 17.5 mV 20.0 mV 16.9 mV 13.3 mV Pass
Crossload 3 14.0 mV 21.3 mV 20.0 mV 14.1 mV Pass
Crossload 4 56.8 mV 20.3 mV 19.9 mV 18.5 mV Pass

Ripple suppression is mediocre at 12V, the most important rail. As you can see in the table above, ripple gets a notable increase from 90% to the 100% load test, which shows that the platform is stressed at full load.

Pages:
  1. Prologue & Technical specifications
  2. Box & Bundle, Product Photos & Cables
  3. Part Analysis
  4. Load Regulation & Ripple Suppression
  5. Transient Response
  6. Hold-Up time, Inrush Current & PSU Timings
  1. Efficiency, Power Factor, 5VSB & Vampire Power
  2. Protection Features
  3. Noise Output
  4. Overall Performance
  5. Epilogue
Pages: 1 2 3 4 5 6 7 8 9 10 11
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3 thoughts on “darkFlash UPMOST 1250W ATX v3.0 PSU Review”

  2. UPMOST? XD
    It’s nice to see that there is so much optimism and imagination around.
    This should lead to improvement.

    Reply

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