bequiet! Straight Power E9 CM 680 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 21 A from the power supply +12V2 rail because the over current protection would kick in. During this extreme configuration, noise and ripple levels were way above the maximum allowed (167.4 mV at +12VA, 172.4 mV at +12VB, 80.8 mV at +5 V, 52.4 mV at +3.3 V, and 176.6 mV at -12 V), and the +12VA, +5 V, and +3.3 V outputs were below the minimum allowed, at +11.39 V, +4.58 V, and +3.03 V, respectively.
| Input | Overload Test |
| +12VA | 33 A (396 W) |
| +12VB | 21 A (252 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 | 802.4 W |
| % Max Load | 118.0% |
| Room Temp. | 46.4° C |
| PSU Temp. | 47.1° C |
| AC Power | 979 W |
| Efficiency | 82.0% |
| AC Voltage | 106.2 V |
| Power Factor | 0.994 |