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Cooling

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Cross-section schematic of a data hall: 41°C facility water enters, warms to 45°C at the rack inlet, exits at 55°C, and rises to a rooftop dry cooler. A bypassed chiller appears as a dashed outline.
Emerginganalysis

NVIDIA's 45°C Cooling Spec Isn't New Physics. It's a Forcing Function for the Supercomputing Data Center.

NVIDIA specs every MGX rack (GB200, GB300, Vera Rubin) for 45°C inlet water. Warm-water cooling is a decade old; the default on 200 kW-class racks is what's new.

AI InfrastructureData Center Infrastructure
SCN Staff·Jul 6, 2026
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