Well, after messing around with three HD floppy drives and two ribbon cables, I've got one combination that seems to be working somewhat. I have a few disks that the drive won't mount, but it will mount almost 800k disk I put in it. It will initialize HD disks and mount ones that it has formatted. The few I have been using while trying all this out won't mount though. I am going to try to rewrite them in my SE/30 and see if they work then. I am also going to try to read the disks I formatted with this drive in the SE/30 and make sure they can be read on another machine.

One thing that seemed to help is using the bottom floppy connector on the logic board (when the screen is facing down, like when you're working on it) instead of the top one. I didn't think that mattered, perhaps I've got a bit of corrosion on the top one?

Hopefully I'm close to getting this one working again,

J White