$10,000 AI-generated, 3D-printed liquid nitrogen container tested — supercools CPUs up to 3 times faster than standard pots

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$10,000 AI-generated, 3D-printed liquid nitrogen container tested — supercools CPUs up to 3 times faster than standard pots

Skatterbencher and three industry-leading partners have completed a feasibility study to see if it’s possible to build a liquid nitrogen (LN2) container using generative AI and additive manufacturing techniques, also known as 3D printing. In

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video, the partners show that it’s possible, but perhaps not financially wise, for the benefits obtained.

Pieter of Skatterbencher is an expert in overclocking and teamed up with three industry-leading companies to explore the possibilities of AI and 3D printing for LN2 cooling. These included Diabatix, a Belgian company pioneering the use of generative AI in thermal solutions, and 3D Systems, an expert in additive manufacturing. Rounding out the partnership was ElmorLabs, a well-known name in overclocking.

The project used the

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as a reference design. It tasked Diabatix’s ColdStream Next AI platform with designing a new LN2 container to improve the reference design. Once the design was complete, the team sent it to 3D Systems to produce a prototype using oxygen-free copper powder. 

AI-generated design for an LN2 container (Image credit: SkatterBencher)

The prototype’s design and manufacture cost $10,000. In comparison, the ElmorLabs Volcano CPU LN2 container used as a reference design sells for just $260.

The base performance tests compared the AI-designed LN2 container with the ElmorLabs Volcano in three categories:

• Cool-down time, how long it took the liquid nitrogen to cool the container from an ambient temperature of 28º Celsius to -194º Celsius.
• Heat up time, the time required to bring the chamber from -194º Celsius to 20º C using a 1,250W heat load.
• 500mL efficiency, the temperature delta between 28.4º Celsius and the lowest achieved temperature, using 500mL of liquid nitrogen.

In testing, the AI-generated LN2 container blew away the Volcano in the cool-down test. It reached -194º Celsius in just under 56 seconds. The Volcano took almost three minutes — three times as long as the prototype. The heat-up test also went in the AI design’s favor, but not as dramatically. The container heated to 20º Celsius 1.2 times faster than the Volcano, more than 30 seconds faster.

Finally, the AI-designed LN2 container proved 20% more efficient than the ElmorLabs design. Using 500mL of liquid nitrogen, the Volcano cooled down to just -100º Celsius, while the AI-designed prototype went down to -133º Celsius.

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Those tests don’t reflect practical considerations, so the team also conducted further tests of a more practical nature:

• An overclocking performance test using Cinebench 2024.
• Checking the temperature delta between the CPU container base and the CPU heat spreader, to see which design most efficiently transferred heat from the CPU.
• An all-out stress test to see how well the CPU fared powered by more than 600W for a couple of minutes.

The team found that while the AI-designed container did beat the ElmorLabs Volcano in real-world tests, the improvements were not nearly as pronounced. Given the dramatic price difference between the AI design and the existing product, the AI design is not a cost-effective alternative.

Performance testing of the AI-generated LN2 container (Image credit: SkatterBencher)

With the initial testing out of the way, SkatterBencher and its partners may look into performance and cost optimizations and perhaps change the intended use to be for even higher-power CPUs, like the AMD Ryzen Threadripper. The team would also like to commercialize the design but likely has a fair bit of work ahead of it to make it commercially viable.

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