Tinkering with my trusty '95, trying to instal a different hard drive. I was getting 'A device attached to the system is not functioning' message. Eventually I took out the IDE cable for close inspection, thinking perhaps it had been handled once too often.
The end connector had a wire 'broken'. Is this by design, perhaps to enable 'cable select' to function?
This was not the cause of the trouble, it turned out.