Temperature and Sound

Testing will be done on our Ryzen 7 1700 processor overclocked to 3.9 GHz at 1.475 volts. This represents a very high wattage load. The CPU only test is a 1 hour test using Prine95 running SmallFFTs. For the combined test, we do a 1 hour test of Prime95 SmallFFTs, as well as Furmark to add heat to the system from the GPU. All testing is done with the coolers fan(s) at 100% speed.

Temperatures are recorded every 5 minutes using the “tdie” sensor in HWiNFO64, as well as our hardware thermocouples placed throughout the closed case.

As you can see the Cooler Master Hyper 212 Evo performed admirably during our CPU test. Temperatures were quite consistent through the 1 hour test, with peak temperatures coming right at the end of the 60 minutes at 88.8°C, and a maximum package wattage of 151.81. Throughout the test the ambient temperature of the room stayed at a fairly consistent 24.3°C, with the case temperature at the intake side of the cooler averaging 26.2°C, and the exhaust temperature of the cooler averaging 33.2°C.

Unfortunately you can see that the Hyper 212 Evo came up just the tiniest bit short in our combined test. It peaked at 93.3°C before we experienced a crash of Furmark. We saw a peak package wattage of 152.4W shortly before the Prime95 crash, however I would not put too much thought into that wattage due to the instability of the system at the time. The average case temperature at the cooler intake was 28.7°C, and the average temperature of the cooler exhaust was 39.9°C, however those averages are skewed by the two crashes we experienced before calling the test at 40 minutes in.


Sound testing is done from a distance of 4 feet from the side window of the case, using our BAFX 3370 digital sound level monitor, with case fans at 60% speed which we have found to be just barely audible. With everything turned off and the room completely silent the meter registered a sound level of 39dB(A).

The Hyper 212 Evo is a little loud, but not in an obnoxious way. There is no rattles or vibrations or whines to speak of, which is impressive as the fan was running at 1,950RPM as reported in HWiNFO64. The main sound heard is of the air rushing through the fins, coupled with a slight hum. Also note that the fan is PWM controllable, and while our testing is done at 100% fan speed, unless you are stressing the system, it can be throttled down.