Test results cooling 200 watts
We perform a total of four measurements. The first set of measurements is with a heat production of 200 watts, the second set with 400 watts of heat. Both sets are done once with fans running on low speed and once running at high speed. This is done by setting the voltage of the fans at 7 V (low speed) and 12 V (high speed). When a chassis registers temperatures above 30 degrees during the first set of 200 watt measurements, we typically don't run the 400 watt tests. If temperatures exceed 40 degrees, we usually halt the test altogether.
200 W 12 V
With fans on high and the equivalent of a mid-range system, the Phanteks Enthoo Primo take fourth place, and is close enough for a shared third or even second place.
200 W 7 V
With fans on high the Phanteks Enthoo Primo ends up in the middle of the chart, but the average temperature of 27.6 degrees is still outstanding. The PWM control ensures that the fans never spin faster than they need to.