Liquid Cooling, the Full System From Chip to Data Center

Cold Plate Sets the Chip-Side Ceiling, CDU Sets Stability: The Two Parts That Define the Whole Rack's Thermal Headroom

Liquid cooling rewrites the heat boundary of dense compute: single AI chips have passed 700 watts and rack power moves toward 400 kilowatts where air cooling faces heat flux limits, density capped around a dozen kilowatts and rising fan energy, and a liquid-cooled server runs as a closed loop of cold plate, CDU, pump, manifold and couplings. Three routes answer heat removal: cold plate supports chips above 800 watts on a mature supply chain, immersion sinks the server into dielectric fluid for extreme density, and rear-door exchange retrofits cheaply but cannot serve the highest-power chips. The core judgment is that plate and CDU matter most, plate setting the chip-side ceiling and CDU setting stability. EXTRCOOL provides one-stop liquid cooling solutions.

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Area 51, NV, USA

EXTRCOOL INDUSTRY LIMITED

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CDU Selection, the Decisions Behind a Liquid-Cooled Data Center

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CDU selection opens with central versus distributed, the hardest decision to reverse: central units sit outside the racks with secondary piping and must hold rack-to-rack differences within about 10 percent, while distributed units ride in each rack, remove secondary piping and confine an outage to one cabinet. Redundancy carries the trap that cold plate servers often ho...

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Liquid Cooling, the Thermal Foundation of High-Density AI Compute

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The CDU, the Heat-Exchange Logic at the Core of Liquid Cooling

Two Loops, One Plate Wall, 95% Exchange Efficiency: The Indirect-Exchange Design That Keeps Outdoor Water Out of the Server Loop

The CDU works not by producing cold but by transferring heat between the outdoor cold source and the server loop through controlled exchange, and the design rests on two independent loops joined by a plate exchanger so fluids never mix: the primary loop runs to the cooling tower, dry cooler or chiller at 15 to 22 degrees, and the secondary loop carries a dedicated insula...

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