Water Cooling is a method used to lower the temperatures of computer processors, and sometimes other components such as graphics cards, using water rather than air as the cooling medium.
Processor speeds have increased dramatically in recent years. As a result, the heat given off by processors has also increased, as has the noise associated with equipment, such as fans, used to keep them running at a safe temperature. Because water can conduct heat about 30 times faster than air can, a water cooling system allows the processor to run at higher speeds while drastically reducing system noise. Some industry experts predict that water cooling systems will become standard for personal computers in the near future.
Water cooling is increasingly used to deal with the special requirements of the data center. Because data centers are often assigned the most convenient available space, rather than a space that is specially designed, servers may be contained in too small an area or one that cannot be adequately ventilated.
Consequently, plumbing is often required for water cooling, which can limit the flexibility of data center design because systems connected to plumbing cannot be easily rearranged