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H2Ceramic cooling
H2Ceramic cooling (also called H2C or Hot-to-Cold) is a computer cooling product offered as an option in Dell's XPS gaming systems, advertised specifically as facilitating CPU overclocking. H2C is a two-stage Liquid/Thermoelectric (TEC) hybrid cooling system that combines a liquid-to-air heat exchanger (much like a liquid radiator), a thermoelectric fluid chiller, and control circuitry to optimize CPU cooling with minimal power.
The components are delivered as a single unit designed to last a minimum of 5 years without service or liquid refilling. The XPS 710 H2C and Dell XPS 720 H2C featured a design where all components were mounted in a single plastic chassis and which only cooled the CPU. This design only matched motherboards with a very specific CPU socket location and was later replaced by a new and more flexible design featuring a separate pump unit which made it much easier to fit a broader range of motherboards with different CPU socket locations. The new design allowed the unit to cool the motherboard chipset as well.
== Components ==
The front of the unit (facing the front of the PC case) has a 120 mm Radiator which is the primary heat exchanger. It is cooled by a fan. After passing the radiator, the cooling liquid moves through a thermoelectric fluid chiller consisting of a liquid cooling block with two Peltier plates. The pump includes an integrated reservoir and spring-loaded floor, to keep the unit pressurized while still allowing small amounts of liquid to bleed out over time.
The first version of the H2C cooled the CPU only. Later versions cooled both the chipset and CPU using a design with automotive rubber tubing to allow greater flexibility in the placement of the cooling plates.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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