PC Power & Cooling Silencer Mk II 650 W Power Supply Review
Overload Tests
Contents
Below you can see the maximum we could pull from this power supply. If we tried to increase one amp at any given output, the unit would shut down, showing that one of its protections kicked in, which is always the desired behavior. During this test, the noise level at -12 V output was at 223.4 mV and the +3.3 V output was below the minimum allowed, at +3.04 V. The other outputs were still inside specs. Interesting enough the maximum amount of power we could pull from this unit matches precisely the peak wattage advertised by the manufacturer (780 W).
| Input | Overload Test |
| +12VA | 30 A (360 W) |
| +12VB | 30 A (360 W) |
| +5V | 10 A (50 W) |
| +3.3 V | 10 A (33 W) |
| +5VSB | 1 A (5 W) |
| -12 V | 0.5 A (6 W) |
| Total | 797.4 W |
| % Max Load | 122.7% |
| Room Temp. | 45.4° C |
| PSU Temp. | 44.6° C |
| AC Power | 990 W |
| Efficiency | 80.5% |
| AC Voltage | 101.4 V |
| Power Factor | 0.996 |