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    EEVblog #1341 - AMAZING $250,000 IBM Processor TEARDOWN!

    EEVblog

    1 HN recommender · recommended in 3 months, 2021–2022

    YouTube

    29:44 · 714K views · Oct 5, 2020

    Dave Jones of EEVblog tears down a 1991 IBM 9121 thermal conduction module from a System/390 mainframe, a 63-layer ceramic hybrid module with 2772 pins worth about $250,000, and demonstrates a BGA desoldering technique.

    Cited in threads on chip packaging and cooling as a vivid look at vintage IBM mainframe module construction.

    Hardware & ElectronicsRepair, teardowns & right to repairHistory of computingComputer architecture & CPUs
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    3 comments from Hacker News

    1. @nomJan 2021· in “IBM paperweight teardown: Reverse-engineering 1970s memory chips”

      All the vintage mainframe stuff is pretty mind blowing. There is an awesome hidden gem on YouTube: CPU Galaxy. He has a huge collection of vintage CPUs. IBM 9121 Mainframe CPU [LINK] Dave from EEVBlog also made a video about it this video

      RecommendsView on HN
    2. @ilytDec 2022· in “One Startup’s Cooling Chip May Surge Processor Power”

      This one does[1]. It have a bunch of pistons on springs touching each chiplet, all in mineral oil. Price bit out of range for typical desktop user tho * this video

      CitesView on HN
    3. @formerly_provenAug 2021· in “An inside look at the custom CPUs in Tesla's Dojo Supercomputer”

      The thermal solution and packaging looks a lot like mainframe systems from the 80s (IBM, Siemens, Japanese). Siemens H100: [LINK] [LINK] IBM: this video

      CitesView on HN