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From: ear@wpi.wpi.edu (Eric A Rasmussen)
Newsgroups: comp.sys.ibm.pc
Subject: Re: 1.2 meg floppy on XT help
Message-ID: <6259@wpi.wpi.edu>
Date: 13 Dec 89 16:45:12 GMT
References: <5715@mentor.cc.purdue.edu> <31290@iuvax.cs.indiana.edu> <20557@pasteur.Berkeley.EDU>
Reply-To: ear@wpi.wpi.edu (Eric A Rasmussen)
Distribution: usa
Organization: Worcester Polytechnic Institute, Worcester ,MA
Lines: 35

In article <20557@pasteur.Berkeley.EDU> wooters@icsib13 (Chuck Wooters) writes:
>
>I need a bit of advice on installing a 1.2 Meg drive on
>my XT.  I have a 360k drive now and I want to put in a 1.2
>Meg as drive A, with the 360k as drive B.  

stuff about cable deleted...

Ok, first of all, unless you have a floppy controller for an XT that is
specifically designed to support high density drives (1.2M and 1.44M), you
cannot use your current controller.  As far as I know, there are no
multifunction cards that support high density drives in XT's.  Therefore, it
is quite likely that you will need to get another floppy controller card and a
seperate I/O and clock card.  The best high density floppy controller I have
seen for an XT is the DTK Mini-Micro card.

Second, if you are going from one floppy drive to two floppy drives, you
must change some of the dip switches on your motherboard.  For most clones,
the proper settings are as follows: On switchblock 1 (sw1) you must set switch
7 off and switch 8 on for two floppy drives. For one floppy drive, 7 and 8
should both be on.

Third, you are correct about the cable.  The connector with the twist goes to
drive A and the connector with the cable flat goes to drive B.  The only other
thing you usually have to check is that the drive select jumpers on your
floppy drives are both set to DS1 if labeled 0-3, or on some mutant drives DS2
if the range is 1-4.  Generally, you won't have to worry about changing the
jumper because most drives come with it set correctly.

Hope this helps.

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