> The IMI 5012H is I am told a clone of the
Shugart ST-512, which is a  
 type 1
  > drive, can anyone confirm this?  I am, working to
resurrect an IBM AT.   
  > Silly me I disconnected the battery and lost the
configuration  
settings.  I
 Obvious question : Did it work before you disconencted the battery? In
 other words do you know the problem is just due to misconfiguration?
  
Yes.  It worked fine before I disconnected the battery.  I assumed it was
dead and I was planning on replacing it with a new one.
 There is a 3rd party setup program that will run on the real IBM AT (I
 know this, becuase it's what I use on mine). I has the advantage that
 when you select a particualr drive type, it displays the actual
 parameters (cylinders/heads/etc) too.
 That way you could at least check you're selecting someting that makes  
sesne.
 Are you using the orignal IBM (Western Digital, actually) controller  
board?
   
Yes.  original board.
What I plan to do next is put the drive in an XT, because in an XT there is
no battery needed and I can use spinrite to determine the drive number.
It's possible given I was getting a 1780 error that there is a problem with
both my controllers.
Bill