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IBM 5162  -  Floppy Drive Support


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Cable and Termination

• A diagram is at here.

• You need to use the particular cable shown at here.  The IBM controller expects it.  The cable manipulates both the motor-on and drive-select lines.

• Do not accidentally use the hard drive type of twisted cable.  Difference shown at here.

• For 5.25" drives, terminate as appropriate, per the diagram at here.


5.25" 360K floppy drives

DOS:  DOS 2.0 or later  (2.0 introduced DOS support for 360K floppies).
BIOS:  The IBM BIOS on the IBM 5162 motherboard has full support for 360K drives/floppies.
Hardware:  The floppy controller that IBM supplied in the IBM 5162 supports 360K drives.


5.25" 1.2M floppy drives

DOS:  DOS 3.0 or later  (3.0 introduced DOS support for 1.2M floppies).
BIOS:  The IBM BIOS on the IBM 5162 motherboard has full support for 1.2M drives/floppies.
Hardware:  The floppy controller that IBM supplied in the IBM 5162 supports 1.2M drives.


3.5" 720K diskette drives

DOS:  DOS 3.2 or later  (3.2 introduced DOS support for 720K diskettes).
BIOS:  The IBM BIOS on the IBM 5162 motherboard has full support for 720K drives/diskettes.
Hardware:  The floppy controller that IBM supplied in the IBM 5162 supports 720K drives.


3.5" 1.44M diskette drives

DOS:  DOS 3.3 or later  (3.3 introduced DOS support for 1.44M diskettes).
BIOS:  The IBM BIOS on the IBM 5162 motherboard has full support for 1.44M drives/diskettes.
Hardware:  The floppy controller that IBM supplied in the IBM 5162 supports 1.44M drives.


If you try to use the IBM 5162 diagnostic floppy to set the floppy drive type in SETUP to 1.44M, you will discover that a 1.44M option does not exist.
To set 1.44M in a 5162, use either the BASIC or GSETUP methods shown at here.