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Rohan Paul Twitter · Rohan Paul (@rohanpaul_ai) · 2026-06-23

NVIDIA's Rubin AI servers adopt 45°C water-glycol liquid cooling for all chips and networking components, a shift that could reduce data center water consumption from 2.6 million gallons per MW per year to near zero in suitable climates.

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Topics: ai-hardwaredata-center-coolingnvidiasustainability

Claims

  • NVIDIA's Rubin AI servers cool all chips and networking components using 45°C water-glycol coolant rather than cold air.
  • This liquid cooling approach can reduce data center water consumption from approximately 2.6 million gallons per MW per year to near zero in suitable climates.
  • Liquid cooling at higher temperatures represents a significant environmental and efficiency improvement over traditional cold-air cooling for AI workloads.

Key quotes

NVIDIA's Rubin AI servers can now cool every chip and networking part with 45°C water-glycol coolant instead of cold air.
Cooling water use can drop from about 2.6M gallons per MW per year to near zero in suitable climates.