#ibmsystem/390#mainframe#eevblog
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Intermediate. Assumes working knowledge.
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HardwareHistory and cultureCPUs and computer architectureRetro computingHistory of computing
Dave Jones tears down a 1991 IBM System/390 thermal conduction module, revealing its complex 63-layer ceramic hybrid construction.
Teardown of a $250,000 1991 vintage IBM 9121 TCM Processor module from a System/390 ES9000 Enterprise Server mainframe computer,. Amazing state of the art 63 layer ceramic hybrid module construction with 2772 pins! Part 2 X-RAY! youtube.com/watch?v=xa0mieJHM94 And Dave demonstrates an amazing BGA desoldering technique that can only be done on these ceramic hybrid PCB's. TCM PDF: eevblog.com/files/ibm-system390-air-cooled-alumina-thermal-c… Another teardown with an amazing cutaway view! youtube.com/watch?v=s7lVfOi7su4 Forum: eevblog.com/forum/blog/eevblog-1341-amazing-$250-000-ibm-pro… Subscribe on Library: lbry.tv/@eevblog:7 EEVblog Web Site: eevblog.com The 2nd EEVblog Channel: youtube.com/EEVblog2 EEVdiscover: youtube.com/eevdiscover Support the EEVblog through Patreon! patreon.com/eevblog AliExpress Affiliate: s.click.aliexpress.com/e/c2LRpe8g Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! eevblog.com/crypto-currency/ T-Shirts: teespring.com/stores/eevblog #IBM #Vintage #TeardownWhat people say. Recommended for its fascinating look at vintage mainframe CPU packaging and advanced thermal engineering.
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