Monday February 11, 2019

3M Demonstrates PC With Submersion Cooling

A 3M employee demoed a CPU cooled with a low-boiling-point liquid years ago, and since then, some server manufacturers have shown off similar systems. But this year, that same 3M employee decided to build a more compact version of the original demo. Check out the final build below:

At least some of the previous demos used 3M Novec 7200 or 7100 fluid, which have boiling points well below 100C. When under a stressful workload, the CPU's IHS boils the volatile liquid, which is re-condensed and cooled by what appears to be a 360mm radiator. Like the previous demo, the entire system is sealed, but it seems that 3M hopes manufacturers will make such cooling systems more accessible in the future. Fuzzie documented the entire build in a series of videos, and it looks like this isn't the end of his experimentation.

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