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I run 24 fans in my build and I have a couple of these as the final stop in the wiring chain in the back and run almost exclusively in Linux these days so this is absolutely welcome.

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Out of curiosity, how does someone cram two dozen fans into a single machine? Even a quad socket Dell R940 only has 8 fans.

Maybe a monster case with three quad fan radiators in push pull...

This is it. The Corsair 1000D is actually a dual-system case and just has massive room. Two quad radiators and a triple 140 in push-pull, plus 2 rear fans. The two quads support one cooling loop (for one of the systems) and the triple supports another.

https://imgur.com/gallery/U2KZD07

(I don't actually keep the fans lit up like this all the time, this was post-build in a very dark garage.)

Now try to get the same cooling power without the noise a rack server makes. -> more larger, slower fans.

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