Quote Originally Posted by 'Tynk',index.php?page=Thread&postID=167748#post167 748
check out http://www.biohazard-computers.com/ and take a look at the nuclear winter machines.

Quoted from the site "the phase-change cooling system keeps CPU operating temperatures at -20°C to -30°C"
Yep, phase cooling is about as good as it gets without needing to refill nitrogen tanks. A few years ago I had an Asetek Vapochill unit that kept the CPU (P4 Northwood) at around -40*C, but constant 100% humidity in Florida made it a pain in the ass to keep condensation from forming all over my motherboard. I had to cake nearly the entire motherboard with Vasoline and keep WARM air blown on it just to prevent condensation. I'm sure it'd be a great way to cool a CPU in Arizona or Nevada, but you have to deal with insulation and condensation too much in humid states to worry about shorting out components.

I'll stick to water cooling from now on.. since you're always at least 1-2*C above ambient, you don't have to worry about condesation since you'll never go under the dew point indoors.