Teardown of a $250,000 1991 vintage IBM 9121 TCM Processor module from a System/390 ES9000 Enterprise Server mainframe computer,.<br />Amazing state of the art 63 layer ceramic hybrid module construction with 2772 pins!<br />And Dave demonstrates an amazing BGA desoldering technique that can only be done on these ceramic hybrid PCB's.<br />TCM PDF: https://eevblog.com/files/ibm-system390-air-cooled-alumina-thermal-conduction-module.pdf<br />Forum: https://www.eevblog.com/forum/blog/eevblog-1341-amazing-$250-000-ibm-processor-teardown/<br /><br />Subscribe on Library: https://lbry.tv/@eevblog:7<br />EEVblog Web Site: http://www.eevblog.com<br />The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2<br />EEVdiscover: https://www.youtube.com/eevdiscover<br />Support the EEVblog through Patreon! http://www.patreon.com/eevblog<br /><br />AliExpress Affiliate: http://s.click.aliexpress.com/e/c2LRpe8g<br />Buy anything through that link and Dave gets a commission at no cost to you.<br /><br />Donate With Bitcoin & Other Crypto Currencies!<br />https://www.eevblog.com/crypto-currency/<br /><br />T-Shirts: http://teespring.com/stores/eevblog<br />#IBM #Vintage #Teardown
