Re: Installed new HD, Windows not gives Errors

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#3991

From: Default Account
Date: Tue, 29 Mar 1994 01:43

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The 1024 cylinder limit is a BIOS limit, not a DOS one. Low level disk 
access via interrupt 13h is passed the cylinder number in ten bits, which 


The way to cope with this (assuming this is an IDE drive- you don't say 
explicitly, but master/slave is IDE talk) is to specify the drive in the 
BIOS setup as having half the actual cylinders but twice the actual 
heads.  This gives you the right capacity, and the IDE drive translates 
these parameters transparently so that the computer never realises that 
they are being faked.  You then partition the drive using the same 
(faked) parameters.

When you have done that, the drive is DOS compatible, and there is no 
need to try to hide the "too big" portion from DOS.  

Probably this doesn't have anything to do with your problems, as you must 
have done something sensible in the BIOS setup to get the drive 
recognised at all, but I just couldn't keep quiet about the BIOS/DOS mix 
up.  


Iolo Davidson
(no club, lone wolf)

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Newsgroups: comp.os.msdos.misc,aus.computers.ibm-pc,comp.sys.ibm.pc,comp.sys.ibm.pc.hardware
Subject: Re: Installed new HD, Windows not gives Errors
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Date: Tue, 29 Mar 94 01:43:09 GMT
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