[comp.sys.ibm.pc] Need help making 360K dirves work with 1.2Meg drives on a AT

wiltonh@copper.MDP.TEK.COM (Wilton Hart) (05/13/89)

In setting up an IBM AT, I have found a problem.  The 360K drives will not
work at all.  The high density drives work just fine.  Here is the data on
what I am using:

      IBM AT Mother Board  -- The Rom numbers are 6181028 and 6181029
      Western Digital MM2, MFM Controller -->Has one strap which I have
                                             no documentation for.
      DOS 2.1 and DOS 3.3   --> Tried both versions
      Drives   SA455 Sugart

The setup program was told that "A" would be hi-density and "B" low-density.
It seeks the head and the motor runs but it will not read data.

The setup program was told that "A" would be low-density and that there were
no other dirves in the system.  It still would not read the 360K drive.

Can you help me?

Email Adress      wiltonh@copper.MDP.tek.com