Now, the main problem of this extreme overclocking is the actual cooling part. We work with temperatures around -78°C (dry ice) and -196°C (liquid nitrogen) and we need to find a way to use these small pieces of ice and the fluid nitrogen to cool down the hardware. How? With containers or pots of course. Basically, you drill a hole in a piece of metal, attach that piece of metal to on your CPU or GPU and throw in the dry ice or liquid nitrogen. It's quite hard to explain using words only, but you'll understand it much better when I'm actually showing you the pictures of today's extreme cooling units.
FULL STORY @ MADSHRIMPS (http://www.madshrimps.be/?action=getarticle&articID=876)