be quiet! Pure Power 10 600W Power Supply Review

Efficiency, PFC and Voltage Regulation

Voltage Regulation

To test voltage regulation we load the power supply to five different load scenarios that give an equal spread of load across every single rail. So that means 20% on all rails, 40% on all rails and so on. We then calculate the average deviance of each rail from its expected voltage.

Voltage regulation is pretty solid here, with only a small % droop on the 5V and 3.3V, but both are still within a comfortable range, especially between 40-80% load. The ones that really matter, such as the 12V rails are much better, giving pretty consistant results in general, but again drooping a little more at 20% and 100% load, but all far from being a problem.

Power Efficiency

Power efficiency is measured by calculating actual supplied wattage divided by the wattage drawn at the wall/plug, multiplied by 100 to give a percentage. We then compare that to the particular 80 Plus certification the company claims to see if it meets that. You can see the 80 Plus certifications below, we always test 230v power supplies.

80 Plus Silver efficiency is certain a welcome bonus while buying a PSU, but the Pure Power 10 makes easy work of the Silver rating and is pushing into the territory of 80 Plus Gold, so that’s certainly excellent value for money.

Power Factor Correction

Power Factor Correction is the ratio of the real power flowing to the load, to the apparent power in the circuit. The aim of PFC is to make the load circuitry that is power factor corrected appear purely resistive (apparent power equal to real power). In this case, the voltage and current are in phase and the reactive power consumption is zero. The closer the number to one the better as this allows the most efficient delivery of electrical power (Source – Wikipedia).

The closer to 1 the better when it comes to this score, and for what is basically a budget unit from be quiet! the Pure Power 10 does a fantastic job here, with fantastically reliable results.