218-pound PC built inside a cast-iron Victorian radiator — cooling an RTX 5090 'probably out of the question'

Cast-iron radiator PC build.

Billet Labs is back and has finalized its cast-iron Victorian radiator gaming PC build. Alex from the London-based PC cooling innovators shared a detailed hour-long video with insights into the build, which should answer all your what, why, and how queries. However, he thought that even for this impressive radiator-as-a-PC build, “cooling something like a 5090 is probably out of the question,” so an RTX 5080 and Ryzen 7 9800X3D combo were judged to be the sweet spot.

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