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Article View: comp.sys.ibm.pc.hardware
Article #18703

8inch floppy help needed

#18703
From: Tim Oerting
Date: Fri, 28 Jun 1991 16:54
29 lines
2097 bytes
I want to hook up an 8" drive to my '386 (no I don't need it..this is just
for the heck of it). My problem is this: 
	I have a CMOS setup which only allows me to specify 3.5 or 5.25"
drives [unless I somehow set it up as a hard drive.. is this possible? 
problems? I can use a non-standard setup for HDs on the CMOS and can set
the following: # cyl, # heads, write precomp cyl?, landing zone cyl, physical
sectors per track].  My other problem would be that I don't know how many
tracks, cylinders, sectors/track, etc.. are on the HD. Are there standards
for this? I believe the drive is 2S but don't know on density...any ways to
check this out easily?

	If I decide to try to hook it up as a 5 1/4 inch floppy then could I 
just connect it using the standard 34 pin cable (anyone done this?).  Looking
at the pinout signals for the 34pin and 50pin (8inch), it seems like I could
make the connection except for the following which I am uncertain about:

     34 pin pin number    	50 pin connector pin number
-------------------------      -----------------------------
	16 Motor on -->to ?-->	22 Drive ready
	4 In use --->to------>  16 In use &(?) 8 Drive Busy
	8 Index  ------------>	20 Index & (?) 24 Sector
	                      /  2  Head Current Switch (?)
   I need to know what these <-	11  2 Sided
  do exactly and what their   \ 24  Sector
  active states are. 

Thanks for your help,
Tim  ---> toerting@mcs.kent.edu
 
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From: toerting@kentvax.mcs.kent.edu (Tim Oerting)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: 8inch floppy help needed
Message-ID: <1991Jun28.165413.8640@mcs.kent.edu>
Date: 28 Jun 91 16:54:13 GMT
Sender: news@mcs.kent.edu (News Administrator)
Organization: Kent State -- In other words no organization here
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Nntp-Posting-Host: kentvax.mcs.kent.edu