This server lives underwater! - Hypertec Immersion Cooling
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Promos
Learn more about MSI's back to school sale and giveaway here: msi.gm Cooling is an expensive business for servers and datacenters, often involving HVAC. As CPUs and GPUs pull more power, more exotic solutions are needed – Enter immersion cooling! Discuss on the forum: linustechtips.com Purchases made through some store links may provide some compensation to Linus Media Group. ► GET MERCH: lttstore.com ► SUPPORT US ON FLOATPLANE: floatplane.com ► AFFILIATES, SPONSORS & REFERRALS: lmg.gg ► PODCAST GEAR: lmg.gg FOLLOW US --------------------------------------------------- Twitter: twitter.com Facebook: @LinusTech Instagram: @linustech TikTok: @linustech Twitch: twitch.tv MUSIC CREDIT --------------------------------------------------- Intro: Laszlo - Supernova Video Link: youtube.com iTunes Download Link: itunes.apple.com Artist Link: soundcloud.com Outro: Approaching Nirvana - Sugar High Video Link: youtube.com Listen on Spotify: spoti.fi Artist Link: youtube.com Intro animation by MBarek Abdelwassaa @mbarek_abdel Monitor And Keyboard by vadimmihalkevich / CC BY 4.0 geni.us Mechanical RGB Keyboard by BigBrotherECE / CC BY 4.0 geni.us Mouse Gamer free Model By Oscar Creativo / CC BY 4.0 geni.us CHAPTERS --------------------------------------------------- 0:00 Intro 0:52 Mineral oil? No... 2:19 Why dunk your server? 3:18 No HVAC and no fans means lower power and better reliability 4:05 We're gonna need it real soon 4:43 Nothing goes to waste 5:44 Dunk the ports, too, it's all good 6:21 What about dust, dirt, and other problems? 7:19 Conclusion - Who's this for?
This video presents Hypertec’s immersion cooling rack, a radical approach to cooling servers that forgoes traditional HVAC and fans. The host explains that the setup uses a dielectric, non-conductive coolant instead of mineral oil, emphasizing that the mixture is lighter than many alternatives and safer for the environment. The show tank demonstrates how heat is transferred from the hot components to an exterior box that exchanges energy with a cold water loop in a single-phase configuration, effectively keeping the rack itself quiet and largely independent from building-scale cooling. The discussion highlights several benefits: reduced noise due to the absence of fans, potential for retrofitting into existing data center layouts without raised floors or internal chillers, and significant power savings from eliminating or reducing HVAC usage inside the room. Hypertec claims industry-leading hardware longevity and a substantial drop in cooling costs, driven by fewer moving parts and optimized sensor integration that communicates with the hardware BIOS to monitor coolant temperature rather than conventional component temperatures. The speaker also touches on broader implications, such as the possibility of capturing up to 99 percent of the heat for reuse in building hot water loops or radiant heating, which could translate to meaningful energy savings and lower operating costs for data centers. The video connects these technical details to real-world deployments, including large GPU and CPU workloads with a focus on future hardware trends, while also acknowledging practical considerations like maintenance, filtration, and the need to address potential contamination or dust within the dielectric loop. The host closes with reflections on environmental impact, the potential for scalable adoption, and a light touch of sponsorship and future exploration, teasing more coverage of similar cooling technologies and related SIGGRAPH-style demonstrations.
Topics · immersion cooling · data center technology · energy efficiency · green energy
Questions answered
- What cooling medium is used in Hypertec's immersion rack and why is it significant?
- The system uses a dielectric, non-conductive coolant instead of mineral oil, which is lighter and safer for the environment, enabling effective heat transfer while reducing fire risk and electrical hazards.
- How does the heat transfer work in this immersion setup?
- Heat is transferred from the hot components to an exterior box that exchanges energy with a cold water loop in a single-phase arrangement, keeping the rack quiet and avoiding the need for in-rrack HVAC components.
- What are the claimed benefits in terms of efficiency and longevity?
- Hypertec claims 30 to 40 percent lower cooling costs, up to 60 percent longer hardware lifespan, and fewer moving parts due to the lack of fans, aided by sensors that monitor the coolant rather than traditional component temperatures.