Corsair TX550M 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, all voltages were still inside the tighter 3% regulation. Ripple and noise levels on the +12 V and -12 V outputs, however, skyrocketed to 138.4 mV and 115.6 mV, respectively. Efficiency was still above 82%, which is outstanding.
| Input | Overload Test |
| +12VA | 23 A (276 W) |
| +12VB | 23 A (276 W) |
| +5 V | 8 A (40 W) |
| +3.3 V | 8 A (23.4 W) |
| +5VSB | 3 A (15 W) |
| -12 V | 0.5 A (6 W) |
| Total | 638.4 W |
| % Max Load | 116.1% |
| Room Temp. | 44.9° C |
| PSU Temp. | 52.8° C |
| AC Power | 772 W |
| Efficiency | 82.7% |
| AC Voltage | 111.1 V |
| Power Factor | 0.998 |