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From: dwb@cpsc53.UUCP (Dave Bigelow)
Newsgroups: comp.sys.ibm.pc
Subject: Re: AT formatting problem
Message-ID: <100299@cpsc53.UUCP>
Date: Wed, 22-Jul-87 13:51:02 EDT
Article-I.D.: cpsc53.100299
Posted: Wed Jul 22 13:51:02 1987
Date-Received: Fri, 24-Jul-87 06:10:42 EDT
References: <2574@husc6.UUCP>
Organization: AT&T-IS CPSC, Atlanta, GA
Lines: 35

> 
> A while ago, there was a discussion on the net about problems formatting 1.2Mb
> disks in AT Clones.  I remember that a solution was given, but not what it was.
> At the time, I was using an XT Clone, but now I have an AT Clone.  Unfortunately,
> I am having the same problem.  Could someone be so kind as to post a summary of
> the discussion.  I'm not really sure how someone can email me something, so a
> posting would be easiest.  Besides, somebody else might want to hear it again.
> whitney%husc4@harvard	"You can't fight in here, this is the war room!"


Hi, I used to work at Mich State University, in the department of Veteranary 
Med. as one of their micro support. We had several XT's and a few AT's and came 
accross a few problems. (we had Zenith models). It boiled down to three
problems:

     1) Using non high-density disks. Specialy made for 1.2M drives is
        Memorex's 1.2M high density disk. This is a special high density brand 
        made for these types of drives.  They must be high density 1.2! 
        They must say it on the box!  Verbatums will not work.

     2) The setup for the system doesn't recognise it as a 1.2M drive.
        Go into the setup program and redefine your driver specs.

     3) Your formatted your disk, but you then used it in a different drive
        and wrote to it in that drive.  You can only read from 1.2M disks
        in non 1.2M drives, you cannot write.

     Extra possibility, your version of DOS does not recognise different drive
     types, you need a command line control to perfrom a high density format!
     Look it up in the MS-DOS handbook.  

I hope this helps! :-)


Dave the Rave