Rosewill HIVE 650 W Power Supply Review
Load Tests
Contents
We conducted several tests with this power supply, as described in the article, “Hardware Secrets Power Supply Test Methodology.”
First we tested this power supply with five different load patterns, trying to pull around 20%, 40%, 60%, 80%, and 100% of its labeled maximum capacity (actual percentage used listed under “% Max Load”), watching the behavior of the reviewed unit under each load. In the table below, we list the load patterns we used and the results for each load.
If you add all the powers listed for each test, you may find a different value than what is posted under “Total” below. Since each output can have a slight variation (e.g., the +5 V output working at +5.10 V), the actual total amount of power being delivered is slightly different than the calculated value. In the “Total” row, we are using the real amount of power being delivered, as measured by our load tester.
The +12VA and +12VB inputs listed below are the two +12 V independent inputs from our load tester. During this test, the +12VA and +12VB inputs were connected to the power supply’s single +12 V rail.
| Input | Test 1 | Test 2 | Test 3 | Test 4 | Test 5 |
| +12VA | 5 A (60 W) | 10 A (120 W) | 14.5 A (174 W) | 19 A (228 W) | 23.5 A (282 W) |
| +12VB | 5 A (60 W) | 10 A (120 W) | 14 A (168 W) | 19 A (228 W) | 23 A (276 W) |
| +5 V | 1 A (5 W) | 2 A (10 W) | 4 A (20 W) | 6 A (30 W) | 8 A (40 W) |
| +3.3 V | 1 A (3.3 W) | 2 A (6.6 W) |
4 A (13.2 W) | 6 A (19.8 W) | 8 A (26.4 W) |
| +5VSB | 1 A (5 W) | 1.5 A (7.5 W) | 2 A (10 W) | 2.5 A (12.5 W) | 3 A (15 W) |
| -12 V | 0.5 A (6 W) | 0.5 A (6 W) | 0.5 A (6 W) | 0.5 A (6 W) | 0.5 A (6 W) |
| Total | 142.2 W | 273.4 W | 393.4 W | 521.2 W | 650.2 W |
| % Max Load | 21.9% | 42.1% | 60.5% | 80.2% | 100.0% |
| Room Temp. | 44.8° C | 44.6° C | 44.9° C | 46.9° C | 49.8° C |
| PSU Temp. | 47.2° C | 46.1° C | 46.3° C | 47.9° C | 51.7° C |
| Voltage Regulation | Pass | Pass | Pass | Pass | Pass |
| Ripple and Noise | Pass | Pass | Pass | Pass | Pass |
| AC Power | 168.5 W | 318.7 W | 461.6 W | 623.4 W | 791.0 W |
| Efficiency | 84.4% | 85.8% | 85.2% | 83.6% | 82.2% |
| AC Voltage | 119.2 V | 117.5 V | 116.1 V | 114.5 V | 112.7 V |
| Power Factor | 0.947 | 0.969 | 0.981 | 0.988 | 0.992 |
| Final Result | Pass | Pass | Pass | Pass | Pass |
The Rosewill HIVE 650 W passed our tests with flying colors.
Efficiency was between 82.2% and 85.8% during our tests, correctly matching the values promised by the 80 Plus Bronze certification. If you follow our power supply reviews, you know that several products with the 80 Plus Bronze certification can’t provide 82% minimum efficiency when delivering their labeled wattage under a real-world scenario. We were happy to see that this is not the case with the HIVE 650 W.
Voltage regulation was very good, with all voltages closer to their nominal values than required (three percent regulation), except on test five, where the -12 V output was at -12.38 V, the +3.3 V output was at +3.17 V, and the +5VSB was at +4.78 V. These outputs were still inside the allowed range. The ATX12V specification states that positive voltages must be within 5% of their nominal values, and negative voltages must be within 10% of their nominal values.
Let’s discuss the ripple and noise levels on the next page.