Are you sure that Drive A on a PC won't work on a straight cable?
Something in the back of my mind says that I used to change the drive
select jumper *AND* make sure a terminator was installed for the floppy
to work fine on a straight cable as Drive A. I do know that not having a
terminator installed (on the last drive of the string) can make for some
really strange and intermittent behavior on both HDs and Floppy Drives.
On the hard drive cable the twist merely changed the drive select signals,
on the floppy drive cable both the drive select and motor on gets twisted.
The floppy drive cable must be twisted to have drive A work properly the
hard drive can work with or without a twist.
Randy
www.s100-manuals.com