Seasonic X-Series 850 W Power Supply Review
Overload Tests
Contents
Below you can see the maximum we could pull from this power supply. Because of its incredibly overspec’ed components, we could easily pull 1,000 W from it. In fact, we had to stop our test at 1,000 W only because this is the limit of our load tester, and this power supply
may be able to deliver even more. During this extreme condition, efficiency dropped to 82.4%, but noise and ripple levels were still extremely low and voltages were still within 3% from their nominal values.
| Input | Overload Test |
| +12VA | 33 A (396 W) |
| +12VB | 33 A (396 W) |
| +5V | 23 A (115 W) |
| +3.3 V | 23 A (75.9 W) |
| +5VSB | 3 A (15 W) |
| -12 V | 0.5 A (6 W) |
| Total | 998.4 W |
| % Max Load | 117.5% |
| Room Temp. | 44.8° C |
| PSU Temp. | 55.4° C |
| AC Power | 1,212 W |
| Efficiency | 82.4% |
| AC Voltage | 102.7 V |
| Power Factor | 0.997 |