Several months ago Corvalent uploaded an interesting video to YouTube in which they demonstrate a PC submerged into a chemical made by 3M called Novec 7000. This fluid has a low boiling point and can dissipate over 4000W of heat with only 200cc of fluid. Novec 700 costs about $300 per gallon and the visual effect of your computer being cooled by a boiling liquid is really nice.
This is a video of an engineering experiment we conducted cooling a computer by completely submerging it in liquid. This liquid submersion cooling system is NOT using mineral oil, or any type of oil cooling. This experiment was done using a chemical made by 3M called Novec™ 7000. It has a low boiling point, and leaves no residue or any trace whatsoever behind on the motherboard. The board was equipped with an i3 processor, running at 100% load. Very interesting cooling results, and strange to see a computer processor without a heatsink, boiling liquid to keep cool.