- Nvidia’s closed-loop liquid cooling system virtually eliminates water waste
- Direct-to-chip cooling transfers heat more effectively than air
- It enables higher performance-per-watt and higher rack densities
Data centers aren’t without their fair share of criticism – energy-intensive compute raises temperatures and giant campuses consume considerable amounts of air and/or water to keep them running optimally.
Land scarcity and financial incentives have also been pushing new developments closer to high-risk areas, including drought-prone regions, ultimately leading to even higher cooling requirements.
But Nvidia knows this, and it knows traditional air cooling has pretty much reached its limits as AI hardware becomes denser and denser.
Closed-loop cooling virtually eliminates water waste
With cooling now a core part of AI infrastructure design, Nvidia’s latest liquid-cooled AI systems promise higher thresholds to reduce the burden, driving down water and energy consumption as a result.
By running coolant at higher temperatures – 45°C or 113°F, to be specific – it enabled simpler cooling systems and lowers electricity consumption. Nvidia’s concept uses 75% water, 25% glycol as a coolant, noting that it can run about 5-7°C higher than hot tubs.
Compared with traditional evaporative cooling towers, Nvidia’s latest proposition involves a closed-loop system where coolant continuously circulates through servers to remove excess heat from chips. The warm coolant then cycles through external dry coolers leaving virtually no water evaporation.
The company boasted that cooling-related water consumption can be reduced by as much as 100% in suitable climates subject to the occasional extreme day, with cooling towers totally eliminated.
“The Nvidia DSX reference design…

















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