Load Testing
Test 1 (73.89W Load)
| Rail | Load | Voltage | Ripple |
| 12V | 2.5A | 12.2V | 9.6mV |
| 5V | 4.89A | 4.89V | 14.0mV |
| 3.3V | 4.82A | 3.28V | 10.0mV |
| -12V | 0.1A | -11.79V | 7.8mV |
| 5Vsb | 0.5A | 5.0V | 8.8mV |
| AC Power | 81.26W | ||
| Efficiency | 90.93% | ||
| Power Factor | 0.87 | ||
| Intake Temp | 36°C | ||
| Exhaust Temp | 37°C | ||
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Test 2 (160.38W Load)
| Rail | Load | Voltage | Ripple |
| 12V | 9.4A | 12.18V | 13.4mV |
| 5V | 4.89A | 4.89V | 14.2mV |
| 3.3V | 4.82A | 3.28V | 11.2mV |
| -12V | 0.1A | -11.87V | 11.8mV |
| 5Vsb | 1.0A | 4.99V | 10.6mV |
| AC Power | 178.0W | ||
| Efficiency | 90.10% | ||
| Power Factor | 0.94 | ||
| Intake Temp | 36°C | ||
| Exhaust Temp | 37°C | ||
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Test 3 (199.96W Load)
| Rail | Load | Voltage | Ripple |
| 12V | 9.4A | 12.17V | 16.2mV |
| 5V | 9.72A | 4.86V | 14.4mV |
| 3.3V | 9.88A | 3.26V | 12.4mV |
| -12V | 0.1A | -11.9V | 10.8mV |
| 5Vsb | 0.99A | 4.97V | 14.2mV |
| AC Power | 219.16W | ||
| Efficiency | 91.24% | ||
| Power Factor | 0.94 | ||
| Intake Temp | 34°C | ||
| Exhaust Temp | 36°C | ||
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Test 4 (255.82W Load)
| Rail | Load | Voltage | Ripple |
| 12V | 14.0A | 12.16V | 19.0mV |
| 5V | 9.72A | 4.86V | 14.8mV |
| 3.3V | 9.88A | 3.26V | 13.4mV |
| -12V | 0.1A | -11.96V | 17.2mV |
| 5Vsb | 0.99A | 4.97V | 13.0mV |
| AC Power | 282.57W | ||
| Efficiency | 90.53% | ||
| Power Factor | 0.95 | ||
| Intake Temp | 33°C | ||
| Exhaust Temp | 35°C | ||
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Test 5 (311.19W Load)
| Rail | Load | Voltage | Ripple |
| 12V | 18.6A | 12.14V | 22.4mV |
| 5V | 9.72A | 4.86V | 14.8mV |
| 3.3V | 9.85A | 3.25V | 16.4mV |
| -12V | 0.1A | 12.02V | 20.0mV |
| 5Vsb | 0.99A | 4.97V | 12.8mV |
| AC Power | 345.11W | ||
| Efficiency | 90.17% | ||
| Power Factor | 0.95 | ||
| Intake Temp | 33°C | ||
| Exhaust Temp | 35°C | ||
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Test 6 (372.43W Load)
| Rail | Load | Voltage | Ripple |
| 12V | 23.2A | 12.12V | 26.2mV |
| 5V | 9.7A | 4.85V | 16.2mV |
| 3.3V | 9.85A | 3.25V | 19.2mV |
| -12V | 0.2A | -11.99V | 28.8mV |
| 5Vsb | 1.98A | 4.95V | 15.2mV |
| AC Power | 417.06% | ||
| Efficiency | 89.30% | ||
| Power Factor | 0.96 | ||
| Intake Temp | 33°C | ||
| Exhaust Temp | 35°C | ||
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Test 7 (407.54W Load)
| Rail | Load | Voltage | Ripple |
| 12V | 25.6A | 12.12V | 30.6mV |
| 5V | 9.7A | 4.85V | 17.6mV |
| 3.3V | 9.85A | 3.25V | 21.6mV |
| -12V | 0.3A | 11.96V | 36.0mV |
| 5Vsb | 2.96A | 4.94V | 15.8mV |
| AC Power | 459.7W | ||
| Efficiency | 88.65% | ||
| Power Factor | 0.96 | ||
| Intake Temp | 33°C | ||
| Exhaust Temp | 35°C | ||
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Overload Test (501.74W Load)
| Rail | Load | Voltage | Ripple |
| 12V | 30.3A | 12.1V | 44.2mV |
| 5V | 14.46A | 4.82V | 21.2mV |
| 3.3V | 14.58A | 3.24V | 28.8mV |
| -12V | 0.3A | -12.07V | 44.4mV |
| 5Vsb | 2.95A | 4.92V | 19.2mV |
| AC Power | 571.16W | ||
| Efficiency | 87.85% | ||
| Power Factor | 0.97 | ||
| Intake Temp | 35°C | ||
| Exhaust Temp | 37°C | ||
.
The 12V rail started at 12.2V, and finished at 12.12V. This gives us a maximum deviation of 0.2V (1.67%) and a drop of 0.08V (0.67%). The 5V rail started at 4.89V and finished at 4.85V, giving us 0.15V (3%) regulation, and a drop of 0.04V (0.8%). Finally, the 3.3V rail managed 0.05V (1.52%) regulation and a 0.03V (0.91%) drop. Averaged out, we have 2.06% regulation and a 0.79% variation, which is an excellent result. The only power supply I have seen which could do better was the Seasonic SSP-350GT. The load was evenly distributed between the two rails, and both had similar readings, so I didn’t see then need to add the 12V2 section to the tables.
The efficiency was pretty much what I would expect from an 80plus gold certified product on 230V – just slightly better than the minimum requirements for 80plus gold. I was able to overload the power supply to 500W without incident. The drops in voltages were only slight, and the efficiency was still above the 87% requirement for 80plus gold (although it may not have been if the power supply was tested on 110V). This power supply also ran very cool. The difference between the intake and exhaust temperatures was only 2°C throughout the testing, even though the fan never seemed to be maxed out.
| Rail | Test 7 (407.54W) | Overload Test (501.74W) |
| 12V |  |
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| 5V |  |
 |
| 3.3V |  |
 |
| -12V |  |
 |
| 5Vsb |  |
 |
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The ripple was well suppressed, staying below half the maximum allowed throughout the load testing. It was slightly above the half mark during the overload test on the 12V and 3.3V rails, but still well below the maximum.
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