NVIDIA's Rubin AI servers run 100% liquid cooling at 45°C for greater energy efficiency
By
Josh Parker
Summary
NVIDIA's upcoming Rubin generation of AI servers achieves 100% liquid cooling with coolant temperatures up to 45°C (113°F) — hotter than a typical hot tub. This counterintuitive approach eliminates all fans from the system and significantly boosts energy efficiency in data centers. The higher coolant temperature allows for more efficient heat rejection and reduces the overall power consumption of AI infrastructure, marking a major leap in data center cooling technology.
Source
Hacker NewsNVIDIA's Rubin AI servers run 100% liquid cooling at 45°C for greater energy efficiencyblogs.nvidia.comKey quotes
· 3 pulledThe Rubin generation of NVIDIA AI infrastructure is the world's first to achieve 100% liquid cooling — every chip, every networking component, cooled entirely by liquid in a closed loop with no fans anywhere in the system.
Hotter Than a Hot Tub: The 45°C Breakthrough to Cool AI's Biggest Machines
That higher temperature limit is precisely what makes them more energy efficient.
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