The Corsair H150i Pro RGB AIO Cooler Review: The Quiet Giant

Testing Results, Low Fan Speed

Using a PWM voltage regulator, we reduced the speed of the fans manually down to half their rated speed, which is 800 RPM. The pump was also connected on the same power source, functioning properly at this low speed setting.

The Corsair H150i Pro RGB is doing much better in this test, managing to almost match the thermal performance of larger (and much more expensive) liquid coolers. Both the low and high load thermal performance of the H150i Pro RGB are exceptional, outpacing most of the smaller AIO cooler implementations. The average thermal resistance is 0.0837 °C/W, hardly worse than the figures we recorded with the cooler's fans running at maximum speed.

Under these operating conditions, we recorded a sound pressure reading of just 33.1 dB(A), a very low figure for any kind of CPU cooler. The H150i Pro RGB will virtually be imperceptible with its fans running at 800 RPM inside a typical room. A slight humming sound will be perceptible in a quiet environment but its intensity is very low and certainly tolerable by even the most sensitive-eared users.