Ripple and Noise Tests
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, both inputs were connected to the power supply’s single +12 V rail.
|Input||Test 1||Test 2||Test 3||Test 4||Test 5|
|+12VA||4 A (48 W)||7.5 A (90 W)||11 A (132 W)||14.5 A (174 W)||18 A (216 W)|
|+12VB||4 A (48 W)||7.5 A (90 W)||11 A (132 W)||14.5 A (174 W)||18 A (216 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 A (5 W)||1.5 A (7.5 W)||2 A (10 W)||2.5 A (12.5 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||104.4 W||209.8 W||313.8 W||416.1 W||520.4 W|
|% Max Load||20.1%||40.3%||60.3%||80.0%||100.1%|
|Room Temp.||44.8° C||43.9° C||44.0° C||45.2° C||47.2° C|
|PSU Temp.||45.5° C||45.3° C||45.4° C
|46.0° C||47.0° C|
|Ripple and Noise||Pass||Pass||Pass||Pass||Pass|
|AC Power||123.5 W||243.6 W||366.8 W||495.3 W||632.0 W|
|AC Voltage||115.5 V||114.0 V||112.7 V||111.5 V||109.3 V|
The Antec High Current Gamer 520 W can really deliver its labeled wattage at high temperatures.
Efficiency was between 82.3% and 86.1%, which is terrific, as time after time we see 80 Plus Bronze power supplies that aren’t capable of reaching 82% efficiency at full load at high temperatures, which didn’t happen with the reviewed unit.
Voltages were closer to their nominal values (3% regulation) during all tests, which is great. 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.