Cooling fans are the principle source of noise in workstations. The noise created by fans increases as fan speed increases. The liquid cooling solution replaces the fast spinning fan generally used by CPU air cooled designs with a very quiet liquid pump. Then liquid cooling takes advantage of spreading the heat over a large radiator surface cooled by the existing low noise chassis exhaust fan to push CPU heat out of the chassis.

The heat created by the CPU increases as the work being done by the CPU increases. With air cooling, spikes in CPU work load can cause sudden increases in fan speed frequently described as fan surge. Liquid cooling systems have much greater thermal transport capability allowing fan speeds to gradually ramp eliminating fan surging.