On May 28, 2016 9:51 PM, <[email protected]> wrote: > > Just wondering if anyone can help us to identify a rather large IBM > processor assembly. It weighs around 60 pounds. > > The frame has a P/N of 34F5089. The frame houses 9 modules, 6 of which are > installed. The module we removed for inspection has a P/N of 34F0615.
Definitely IBM mainframe. The individual square alloy lumps are what are called MCMs - Multi Chip Modules. Insides are dozens of individual ECL ICs. Water cooling heatsinks would have been bolted to the front side in life. Can't remember what IBM called the entire assembly. 1980s, probably a 3080 or 3090 but don't quote me on that. Mike
