Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!fernwood!uupsi!dorsai!skipm
From: skipm@dorsai (Dorsai SysOp)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Compaq Portable and 720K floppy drive
Keywords: Compaq Portable 720K floppy
Message-ID: <RRJs31w163w@dorsai>
Date: 31 May 91 06:05:26 GMT
References: <14008@ur-cc.UUCP>
Organization: The Dorsai Diplomaitc Mission (+1.212.431.1944)
Lines: 30

gwni@troi.cc.rochester.edu (G. Wayne Nichols) writes:

> So I removed one of my 5 1/4" floppies and installed the 3 1/2" drive.
> Results?  It doesn't work.

Check the following : 
 
a) Are you using the correct cable with a fat twist between the two 
   connectors?
 
b) Drive A:, or the first device in the chain, always gets the last
   position on the cable. Subsequent floppy or floppy-like devices
   get the next position in the cable, etc.
 
c) Check the DRIVE SELECT jumper on the drive - usually a jumper marked
   DS on the side or top of the drive close to the power connector.
   This jumper on a 3.5" floppy is normally set to 2, you may have
   to change it to 1 to get the drive to function as the first device.
 
d) It seems as if you have the cable in correctly from the drive to
   the controller since the drive will spin, however, make sure the
   red edge of the cable is connected to pin 1 of the controller's
   jack or pins. If your controller doesn't have an etched "1" on
   the board telling you where pin 1 is, flip the board over to the
   solder side and look for the pin that is soldered SQUARE as 
   opposed to ROUND. The SQUARE one is pin 1.
 
Hope this helps...
 
Skip