ASUS U-75HA 750 W Power Supply Review
Overload Tests
Contents
When we tried to pull more than 23 A from the +12V2 rail from this power supply the over current protection (OCP) entered in action shutting down the power supply. Since our load tester has only two inputs (and each one limited to 33 A), we were limited by our instrument, since we could “only” pull up to 33 A from the +12V1 input (which was connected to the +12V1 and +12V3 rails) and 23 A from the +12V2 input (more than that OCP would kick in, as explained). Thus it is possible that ASUS U-75HA can deliver even more than we were able to pull.
The main goal of our overload test is to see if the power supply burns or explodes and if its protections are active. Thus ASUS U-75HA 750 W passed this test.
| Input | Maximum |
| +12V1 | 33 A (396 W) |
| +12V2 | 23 A (276 W) |
| +5V | 28 A (140 W) |
| +3.3 V | 28 A (92.4 W) |
| +5VSB | 3 A (15 W) |
| -12 V | 0.5 A (6 W) |
| Total | 914.8 W |
| % Max Load | 122.0% |
| Room Temp. | 49.3° C |
| PSU Temp. | 54.7° C |
| AC Power | 1,271 W |
| Efficiency | 72.0% |
| AC Voltage | 100.5 V |
| Power Factor< /td> | 0.998 |