Gigabyte Odin Plus 700 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 how the reviewed unit behaved 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 power listed for each test, you may find a different value than what is posted under “Total” below. Since each output can vary slightly (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. On 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 input was connected to the power supply +12V2 and +12V3 rails, while the +12VB input was connected to the power supply +12V1 rail.
| Input | Test 1 | Test 2 | Test 3 | Test 4 | Test 5 |
| +12VA | 5 A (60 W) | 10 A (120 W) | 15 A (180 W) | 20 A (240 W) | 25 A (300 W) |
| +12VB | 4.5 A (54 W) | 10 A (120 W) | 15 A (180 W) | 20 A (240 W) | 25 A (300 W) |
| +5V | 2 A (10 W) | 4 A (20 W) | 6 A (30 W) | 8 A (40 W) | 10 A (50 W) |
| +3.3 V | 2 A (6.6 W) | 4 A (13.2 W) | 6 A (19.8 W) | 8 A (26.4 W) | 10 A (33 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 | 141.4 W | 283.2 W | 417.4 W | 550.8 W | 700.2 W |
| % Max Load | 20.2% | 40.5% | 59.6% | 78.7% | 100.0% |
| Room Temp. | 44.3° C | 44.4° C | 47.1° C | 46.6° C | 45.9° C |
| PSU Temp. | 42.5° C | 43.0° C | 44.7° C | 45.6° C | 44.8° C |
| Voltage Regulation | Pass | Pass | Pass | Pass | Pass |
| Ripple and Noise | Pass | Pass | Pass | Pass | Pass |
| AC Power | 167.7 W | 330.7 W | 492.7 W | 661.0 W | 868.0 W |
| Efficiency | 84.3% | 85.6% | 84.7% | 83.3% | 80.7% |
| AC Voltage | 116.3 V | 114.8 V | 113.3 V | 111.1 V | 109.0 V |
| Power Factor | 0.980 | 0.989 | 0.989 | 0.992 | 0.994 |
| Final Result | Pass | Pass | Pass | Pass | Pass |
Odin Plus 700 W from Gigabyte can really deliver its labeled power at high temperatures.
Efficiency was above 84% when we pulled between 20% and 60% of the labeled wattage (i.e., between 140 W and 420 W), peaking 85.6 W at 40% (280 W) load. At 80% load (560 W) efficiency was still very good at 83.3%. At full load, however, efficiency dropped to 80.7%. This unit is 80 Plus Bronze certified, but if you follow our reviews you know that Ecos Consulting (the company behind 80 Plus) tests power supplies at 23° C, a temperature that is too low, and several units can’t reach the promised efficiency during our tests since we collect data at temperatures between 45° C and 50° C (efficiency drops with temperature).
Voltage regulation was exceptional, with all voltages within 3% from their nominal values (including the -12 V output) – i.e., values closer to their “face value” than required, as the ATX12V specification allows voltages to be within 5% from their nominal values (10% for -12 V).
Even though it uses solid capacitors, this unit presented somewhat high noise and ripple levels. Below you can see the results for test five with the unit delivering 700 W. The maximums allowed are 120 mV for +12 V and -12 V outputs and 50 mV for +5 V, +3.3 V and +5VSB outputs.
Figure 19: +12VA input from load tester at 700.2 W (98.2 mV).
Figure 20: +12VB input from load tester at 700.2 W (104.4 mV).
Figure 21: +5 V rail with power supply delivering 700.2 W (14.8 mV).
Figure 22: +3.3 V rail with power supply delivering 700.2 W (34.8 mV).
Now let’s see if this unit can deliver more than 700 W.
