Efficiency

Using the results we gathered so far, we plotted a chart showing the PSU's efficiency at low loads and loads ranging from 10 to 110 percent of the maximum-rated capacity.




Thanks to the bridgeless APFC converter, the platform achieves high efficiency numbers in all load regions.

10%–110% Load Testing

These tests reveal the PSU's load regulation and efficiency levels under high ambient temperatures and show how the fan-speed profile behaves under harsh operating conditions.


The PSU can handle high operating temperatures, but with a full load at 46 °C, don't expect it to be quiet. That having been said, noise output is low with up to 80% load, and at up to 40% load, the fan spins at very low speeds despite high ambient temperatures.

Light Load Testing

In the following tests, we measure the PSU's efficiency at loads significantly lower than 10 percent of the maximum capacity—the lowest load the 80 PLUS standard measures. This is important for when a PC is idle with its power-saving features turned on.


Efficiency levels are high with light loads, and the PSU's fan spins at very low speeds, which keeps noise output very low.

Ultra-Light Load Testing

The applied load in this test is only 10 W for PSUs with 500 W and less capacity. This is because we dial in 2% of the maximum-rated capacity for all other PSUs and only run this test with 115 V input.


The PSU easily breaks the 70% mark with 2% load.

5VSB Efficiency

The 5VSB rail needs an efficiency boost.

Power Consumption in Idle and Standby

Power consumption is quite high in standby and 230 V input.