Also, see if jumpering it as CS(cable select) works.
If no luck, the other items in my 1st post are ok, and the HD is not from a Compaq or HP system, then if possible save the critical files to a burner on the system in which the HD was originally installed, and then format it there.
If that's no good and the original HD still exists for the different system, then reinstall it, and see if the subject HD gets recognized as Slave on IDE 2.
If that works, then save the critical files to a burner, format it there, and then see if it get recognized as Master.