Which one of you is already running 100-plus kilowatt racks?
readers, expect liquid cooling to play a larger role in enterprise datacenters over the next few years.
As we saw at GTC, this trend could soon change. While Nvidia's HGX B100 and HGX B200 systems will still be available in air-cooled form factors, its most powerful accelerators like the 2,700-watt Grace-Blackwell Superchip will Combined with the opportunistic boost algorithms found on most modern processors, liquid-cooled systems should in theory be capable of achieving higher clock speeds than their air-cooled siblings.Despite the advantages liquid cooling offers, readers remain split as to which version of technology they will ultimately deploy.
About a sixth of respondents said they planned to use a mix of DTC and immersion cooling in their datacenters, while 61.7 percent said they had no plan to utilize either technology in the next two years. Just 6.7 percent of respondents said their average rack power was between 51 kW and 100 kW a rack, while 6.3 percent said it exceeded 100 kW. We've seen some larger RDHx systems that can handle air-cooled systems up to around 90 kW of thermal dissipation.
Among their top concerns were maintenance, complexity, and the initial cost of implementation. Liquid-cooled systems require additional resources, facility water, CDUs, and in the case of DTC, rack manifolds to distribute the coolant to the individual systems.
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