We have all seen liquid nitrogen used to cool CPUs, but have you ever seen liquid helium cool CPUs.
Since Helium has a boiling point of -268.6C and a melting point of -272C, it would be the best element to use to cool the CPU. Since -273C is Absolute Zero, I don't think you will have to worry about solid helium in your cooling system. All you need is a powerful compressor and a powerful cooler for that compressor.
I would love to have a Liquid Helium Cooled CPU.
If only if Asetek would make one.
Athlon XP 3200 3DMark05 Score: 3460
GeForce 6600 GT 3DMark05 Score: 3132
14304 SETI Results:
Athlon 64 2800
Athlon XP 3200
Athlon XP 2100
Athlon XP 1800
Pentium 3 Celeron 667MHz
If you haven't played Descent 3, you aren't a gamer.