Hotter Than a Hot Tub: The 45°C Breakthrough to Cool AI’s Biggest Machines

Nvidia has developed new AI server cooling systems that operate effectively with liquid temperatures reaching 45 degrees Celsius. By allowing the coolant to run at higher temperatures, data centers can rely more on ambient air for heat rejection rather than energy-intensive refrigeration. This shift reduces the total electricity required for cooling large-scale AI infrastructure, potentially lowering operational costs and energy consumption for facilities housing high-density computing hardware.