Enermax NAXN 82+ 550 W Power Supply Review
Overload Tests
Contents
Below you can see the maximum we could pull from this power supply. We couldn’t pull more than that because the power supply shut down, showing that its protections were working well. During this test, voltages were still within 3% of their nominal values, except at +12VA (+11.53 V) and +12VB (+11.51 V), which were still inside the proper range, though. Ripple and noise levels increased, but were still relatively low (69.2 mV at +12VA, 70.8 mV at +12VB, 21.2 mV at +5 V, and 19.4 mV at +3.3 V).
| Input | Overload Test |
| +12VA | 25 A (300 W) |
| +12VB | 25 A (300 W) |
| +5 V | 8 A (40 W) |
| +3.3 V | 8 A (26.4 W) |
| +5VSB | 3 A (15 W) |
| -12 V | 0.5 A (6 W) |
| Total | 662.4 W |
| % Max Load | 120.4% |
| Room Temp. | 47.8° C |
| PSU Temp. | 54.8° C |
| AC Power | 937 W |
| Efficiency | 79.1% |
| AC Voltage | 111.8 V |
| Power Factor | 0.995 |