Hacker Phame has taken a low powered Raspberry Pi mini PC, which is
available to purchase for around $35, and added a pimped up cooling
system creating a water cooled Raspberry Pi mini computer.
To re-cap the Raspberry Pi mini computer which is manufactured in
Wales, UK, is equipped with a a 700 MHz ARM11 processor, which can
safely be overclock it to 1 GHz if desired.
If you would like to go even higher than that you might then nee to
think about upgrading to something similar to the water cooled Raspberry
Pi version created by Phame.
The water cooled Raspberry Pi took a few months to build and uses
neon-pink water pumped to three of the hottest points on the Raspberry
Pi board. The cooling water pumps on the Raspberry Pi draw their power
directly from the board, so only a single power adapter id required to
drive the system.
Source: Geek : bit-tech : Liliputing