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ABSTRACT

True Liquid Cooling means removing the heat from the heat source with a liquid instead of just pre-chilling air with cold water. One of the major advantages of True Liquid Cooling over pre-chilling air is that the heat may be rejected from the internal liquid into either chilled water or computer room air, at the option of the customer.

The basic problem, which must be solved in order to achieve such a cooling system, is to get the liquid to and from the heat source without getting everything else wet. This paper describes how this is accomplished for both multichip integrated circuit packages and high wattage power supplies. Also, described is the implementation of a True Liquid Cooling system for a large central processor.