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From: jc58+@andrew.cmu.edu (Johnny J. Chin)
Newsgroups: comp.sys.ibm.pc
Subject: Re: AT harddisk in IBM PC
Message-ID: <4XsdLXy00V4-Q85Xx-@andrew.cmu.edu>
Date: 29 Jan 89 04:41:07 GMT
Organization: Carnegie Mellon, Pittsburgh, PA
Lines: 40

To install the AT hard disk into the PC is simple.

1.  Change the DS (Drive Select) jumper on the drive from DS1 to DS0 by
    moving the jumper from the second set of pins to the first.

2.  Get any Western Digital hard drive controller that supports the 40 Meg.
    (NOTE:  Old versions of WD cards will NOT work.)

3.  Get the two necessary cables for the controller card and connect the
    controller to the drive.  Observe the color edge of the cable.  The color
    edge of the cable goes to pin 1 on the controller and the edge of the
    circuit board on the drive which has a slit in it.

4.  Upgrade your power supply to at least 120 Watts, if not 150W.

5.  Plug in the power cable from the power supply to the drive.

6.  Boot up with a virgin DOS 3.2 or higher disk.

7.  Follow the instructions that came with the WD controller on how to do a low
    level format on the drive, etc.

8.  Run FDISK and FORMAT the drive.  You should be up and running.
Now, as for the 1/2" from the power supply ... DO NOT WORRY ABOUT IT.
I have a 40 Meg. (CDC) in mine which is about 1/2" from the power supply and
I haven't had any problems.  From my work experience, most drives do come
that close to the power supply.

I hope all of this didn't go over you head and will help you.

                                        -- J. Chin (a.k.a. Computer Dr.)
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Disclaimer:   The views expressed herein are STRICTLY my own, and not CMU's.