Noise Levels and Fan Speeds

Testing Procedure

Fan noise testing is done at 25%, 50%, and 100% fan speed, with the dBA level being recorded by a Pyle PSPL25 sound pressure level meter at a distance of 30 cm. The fan(s) RPM results are taken at the same 25%, 50%, and 100% settings. These speeds are handled by MSI's Command Center software, and a Lamptron FC6 fan controller is also used as a secondary method of confirming RPM and dBA readings in case MSI's Command Center cannot control the fan(s), which ensures that proper results can still be obtained if the software fails. To give users the noise profile of the tested CPU cooler, testing is done using fan speed percentages instead of various load levels.

Noise Levels

The Reeven Ouranos stays completely silent in most situations as you won't notice it until the fan hits 100%. It is very quiet even then, only hitting a maximum of 45 dBA.

Fan Speeds

Looking at its RPM readings at 25%, 50%, and 100%, noise levels match recorded fan speeds well. While the fan is spinning at roughly 80 RPM less than its stated maximum, that still falls within the accepted 10% range of fluctuation.