IBM 5406 System/3 Restoration 2021


Dan and Alex went to Arlington and picked up the System/3. Unfortunately in the confusion the sheet metal panels that go on the processor cabinet next to the desk were left behind, and were scrapped. We can make some replacement covers out of painted plywood, and it will look fine.

We received a large stack of the original IBM documentation that came with this machine, a CE disk pack, and a CE cassette for loading disk diagnostics.

The disk is a 5444-1, the low density version. By moving a microswitch in the drive, changing a jumper on the disk controller backplane, and reformatting the fixed disk and any removable disk packs, we could change it to a 5444-2 and double the drive capacity.