IBM

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Useful documents

Diagnostic Information for Micro Channel Bus Systems - Ever wonder what those 3-digit hex codes on the front of your system actually mean? Find youself in front of a flashing 888 without a clue? Look here for all the answers!
Adapters, Devices, and Cable Information for Micro Channel Bus Systems - Are you holding some random unknown MCA card in your hand, and are trying to figure out what it does? Well look for a white sticker saying something like "1-4", look in this document, and you shall find out!

Diagnostic disks (9.3M) - This tarball contains images of 13 1.44M floppy disks needed for diagnostics and startup configuration of an older RS/6000 machine. The machine is meant to be booted directly off disk 1, with the key set to service mode. They are then fed sequentially until the machine is alive enough to tell you otherwise. These disks are invaluable for resurrecting that old POWERstation, when all you know is that it shows 3-digit hex codes, and haven't a clue what device it is configured to boot off of by default. (If anyone has a problem with me distributing these ancient floppy images, please kindly let me know and I will react appropriately.)