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.
The Cooler Master HAF XM is intended for demanding systems that generate more heat than 200 watts, but for the sake of being complete we will begin with that test anyway.
200 W 7 V
With fans at low speed the Cooler Master HAF XM is just above the middle point of the chart, but its 25.4 degrees is still acceptable. It does a bit better than the deluxe Bitfenix Shinobi XL.
200 W 12 V
With the fans on high the difference diminish, and the Cooler Master HAF XM falls in the middle of the road. The difference with the Shinobi XL increases, and the similarly priced Corsair Carbide 500R is surpassed.