Water-based cooling systems for personal computers first appeared about half a decade ago. Like in many “enthusiast-oriented” market sectors, everything was started by a few fans who were trying to improve the parameters of their own PCs. Water cooling was going to remove both heat and noise problems. Overclockers needed efficient cooling and relative quiet too, since multiple-fan monsters were unbearably noisy. So they had to turn to the high heat-conductive properties of water for the answer.



Link: X-bit Labs