Kingwin Power Force 850 W Power Supply Review
Overload Tests
Contents
Below you can see the maximum we could pull from this power supply. The objective of this test is to see if the power supply has its protection circuits working properly. This unit passed this test, since it shut down when we tried to pull more than what is listed below. During this test, noise and ripple levels were still low at all positive outputs, but at -12 V they surpassed the maximum allowed, at 129.8 mV. The +3.3 V was touching the minimum allowed, at +3.13 V.
| Input | Overload Test |
| +12VA | 33 A (396 W) |
| +12VB | 33 A (396 W) |
| +5 V | 20 A (100 W) |
| +3.3 V | 20 A (66 W) |
| +5VSB | 3 A (15 W) |
| -12 V | 0.5 A (6 W) |
| Total | 967.4 W |
| % Max Load | 113.8% |
| Room Temp. | 47.8° C |
| PSU Temp. | 49.8° C |
| AC Power | 1,236 W |
| Efficiency | 78.3% |
| AC Voltage | 106.6 V |
| Power Factor | 0.989 |