many of us had herard of nitrogen cooled mainframes, adn while cool, remember that here they may use superconductors which require lower temps tehn normal refigerant can offer, thayt is why liquid gas is more common in these setups. for home use, or gaming or uptime, phase change with real refigerant is the best way to go. i've ben resrching it for some time adn i hope to build a good pase chage system thys wiunter using some of the good stuff, R-12. waiting for the new opteron processors though.
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