Asetek : WaterChill™ High end water-based processor cooling
The WaterChill product line consists of a number of components, which in combination offers the demanding PC end user a state-of-the-art processor cooling system. Utilizing the effective heat transfer capacity of fluid cooling the WaterChill system allows the end user to realize two value objectives normally mutually exclusive: Maximum PC performance AND an extremely low noise level.
Everything you want to know can be found in this review:
Madshrimps reviewI tested the Athlon 64 with the waterchill fan on 7V and on 12V. On 7 V it's silent, but on 12 V it's loud, not extremely loud, but too loud for me...
Time for the results...