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% | 8.564A | 1.989A | 1.981A | 0.995A | 124.954 | 87.511% | 0 | <6.0 | 44.45C | 0.985 |
| 12.069V | 5.028V | 3.332V | 5.026V | 142.762 | 40.21C | 114.83V | ||||
| 20% | 18.163A | 2.99A | 2.981A | 1.198A | 249.952 | 91.418% | 882 | 26.2 | 40.72C | 0.996 |
| 12.060V | 5.018V | 3.321V | 5.01V | 273.409 | 45.26C | 114.79V | ||||
| 30% | 28.085A | 3.494A | 3.488A | 1.402A | 374.41 | 91.7% | 885 | 26.3 | 41.16C | 0.998 |
| 12.048V | 5.009V | 3.312V | 4.993V | 408.372 | 46.23C | 114.75V | ||||
| 40% | 38.083A | 4A | 3.997A | 1.608A | 499.601 | 91.358% | 888 | 26.5 | 41.86C | 0.998 |
| 12.036V | 5.001V | 3.303V | 4.977V | 546.971 | 47.43C | 114.7V | ||||
| 50% | 47.767A | 5.009A | 5.012A | 1.815A | 624.933 | 90.806% | 1002 | 29.7 | 42.34C | 0.998 |
| 12.025V | 4.992V | 3.292V | 4.96V | 688.162 | 48.42C | 114.66V | ||||
| 60% | 57.404A | 6.023A | 6.033A | 2A | 749.351 | 90.054% | 1198 | 34.1 | 42.52C | 0.998 |
| 12.014V | 4.982V | 3.282V | 4.943V | 832.128 | 49.02C | 114.61V | ||||
| 70% | 67.132A | 7.041A | 7.062A | 2.234A | 874.779 | 89.053% | 1417 | 38.2 | 43.58C | 0.999 |
| 12.002V | 4.972V | 3.272V | 4.924V | 982.318 | 50.66C | 114.56V | ||||
| 80% | 76.874A | 8.002A | 8.096A | 2.342A | 999.294 | 87.963% | 1635 | 41.3 | 43.93C | 0.998 |
| 11.990V | 4.962V | 3.261V | 4.91V | 1136.056 | 51.98C | 114.51V | ||||
| 90% | 87.021A | 8.579A | 8.609A | 2.45A | 1124.974 | 86.857% | 1852 | 44.5 | 44.22C | 0.998 |
| 11.980V | 4.954V | 3.252V | 4.898V | 1295.212 | 53.27C | 114.45V | ||||
| 100% | 96.929A | 9.099A | 9.159A | 3.083A | 1249.749 | 85.728% | 2066 | 46.9 | 44.97C | 0.998 |
| 11.968V | 4.945V | 3.243V | 4.865V | 1457.783 | 54.98C | 114.4V | ||||
| 110% | 106.727A | 10.13A | 10.303A | 3.09A | 1374.355 | 84.41% | 2073 | 46.9 | 46.67C | 0.998 |
| 11.956V | 4.935V | 3.232V | 4.853V | 1628.148 | 57.61C | 114.33V | ||||
| CL1 | 0.116A | 14.45A | 14.402A | 0A | 121.292 | 80.974% | 943 | 28.2 | 40.64C | 0.988 |
| 12.071V | 4.996V | 3.312V | 5.059V | 149.831 | 46.14C | 114.83V | ||||
| CL2 | 0.114A | 19.994A | 0A | 0A | 101.354 | 78.835% | 881 | 26.2 | 40.10C | 0.979 |
| 12.075V | 5V | 3.33V | 5.065V | 128.515 | 47.11C | 114.83V | ||||
| CL3 | 0.114A | 0A | 19.889A | 0A | 67.375 | 73.925% | 880 | 26.2 | 40.79C | 0.947 |
| 12.071V | 5.028V | 3.318V | 5.059V | 91.185 | 49.80C | 114.85V | ||||
| CL4 | 104.341A | 0A | 0A | 0A | 1249.535 | 86.461% | 1952 | 46.0 | 45.65C | 0.998 |
| 11.975V | 4.977V | 3.263V | 4.98V | 1445.277 | 56.59C | 114.41V |
Load regulation is not tight overall. Only the 12V rail is within 1%.
Ripple Suppression
| Test | 12V | 5V | 3.3V | 5VSB | Pass/Fail |
| 10% Load | 14.0 mV | 7.9 mV | 10.5 mV | 5.4 mV | Pass |
| 20% Load | 13.6 mV | 7.8 mV | 10.4 mV | 5.5 mV | Pass |
| 30% Load | 17.8 mV | 9.3 mV | 10.9 mV | 6.0 mV | Pass |
| 40% Load | 22.5 mV | 9.0 mV | 11.6 mV | 6.2 mV | Pass |
| 50% Load | 27.2 mV | 9.0 mV | 12.4 mV | 7.2 mV | Pass |
| 60% Load | 28.2 mV | 9.0 mV | 12.3 mV | 7.2 mV | Pass |
| 70% Load | 29.5 mV | 10.1 mV | 13.2 mV | 8.0 mV | Pass |
| 80% Load | 33.3 mV | 10.2 mV | 13.9 mV | 8.3 mV | Pass |
| 90% Load | 35.3 mV | 11.5 mV | 16.2 mV | 9.3 mV | Pass |
| 100% Load | 38.9 mV | 13.9 mV | 23.5 mV | 11.1 mV | Pass |
| 110% Load | 40.3 mV | 15.3 mV | 22.2 mV | 12.0 mV | Pass |
| Crossload 1 | 16.7 mV | 11.3 mV | 15.0 mV | 10.8 mV | Pass |
| Crossload 2 | 16.8 mV | 15.2 mV | 12.0 mV | 9.4 mV | Pass |
| Crossload 3 | 57.2 mV | 8.5 mV | 15.5 mV | 10.9 mV | Pass |
| Crossload 4 | 37.7 mV | 10.5 mV | 20.6 mV | 12.6 mV | Pass |
Ripple suppression is decent at 12V, good at 5V and 5VSB, and there is room for improvement at 3.3V (at full load).
Pages:
I believe the images are not for this PSU in page 3, and instead are from the SeaSonic series. Notice the AC mains connector is using a different connector than the one in Page 2. Also, there is no “purple” anodized heatsinks, everything’s just black. Refer to the GX III 1050W review to see how it should look. Please fix this problem, thank you.
My bad, fixed. Thanks!
Excellent! Checking the review gallery now.
Also a big thanks for your exact component part number listings on page 2 of each variant of this PSU’s family (1250W, 1050W, 850W, 750W), it helped me a great lot to decide exactly which one of them to consider buying. Shame that Cooler Master doesn’t publish this information, but I always prefer to actually do a comparison between the internal components before considering to purchase a product, so as your review are an excellent source of information, thank you!