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Datacenter
Liquid Cooling
Liquid cooling uses liquid instead of air to cool datacenter servers, enabling higher density and efficiency.
Definition
Liquid cooling is a datacenter cooling technology that uses liquid (water or dielectric fluid) instead of air to remove heat from servers. Liquid cooling is essential for modern AI workloads — a single H100 GPU server can draw 10kW+, far beyond what air cooling can handle efficiently. Approaches include: (1) Direct-to-chip — cold plates on CPUs/GPUs, (2) Immersion cooling — servers submerged in dielectric fluid, (3) Rear-door heat exchangers. Harch Corp uses direct-to-chip liquid cooling for GPU clusters, achieving PUE 1.08 and supporting 50kW/rack density.
Related Keywords
liquid coolingimmersion coolingdirect to chipdatacenter coolinggpu cooling
Related Terms
PUE (Power Usage Effectiveness)
PUE is the ratio of total facility power to IT equipment power, measuring datacenter efficiency.
Datacenter
A datacenter is a facility housing computer systems and networking infrastructure for computing and storage.
Power Density
Power density is the amount of electrical power delivered per rack in a datacenter, measured in kW/rack.