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

EEVblog · demo · Watch on YouTube

Repair, teardowns & right to repairHistory of computingComputer architecture & CPUs

What it is

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.

Why Hacker News recommends it

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

  • 1 people recommended it
  • 1 different months
  • 0 strong recommendations
  • first 2021, last 2022

What HN commenters said

  1. “Dave from EEVBlog also made a video about it”

    EEVblog teardown of a vintage IBM mainframe processor module.

    nom, 2021-01 · Recommendation · in “IBM paperweight teardown: Reverse-engineering 1970s memory chips”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: ibm system/390, teardown, ceramic module, chip packaging, vintage computing

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