*BSD News Article 86047


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From: jca@bighorn.accessnv.com (J.C. Archambeau)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Adding memory to FreeBSD: where did it go?
Date: 3 Jan 1997 19:27:55 GMT
Organization: Access Nevada Inc.
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References: <32CD1B09.261@sticky.usu.edu>
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Cc: hal@sticky.usu.edu
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Hal Lynch (hal@sticky.usu.edu) wrote:

: I added 32M to my freeBSD system and it dosen't show up when I
: boot the system.  How do I get FreeBSD to recognize the additional
: memory?????

: Here is what I know:
: 	- OS is FreeBSD 2.1.5
: 	- Hardware is Compaq DeskPro 5100

That's the problem.  You have a Compaq.  This is one of many Compaqisms
that make Compaqs very undesirable with respect to running any OS
outside of MS-DOS, Windows and perhaps OS/2.  I don't even know if
Solaris x86 or SCO has a way to get around the Compaq problem.

The Compaq BIOS maps and reports physical memory above 16 Mb in an
'undocumented' fashion.  Compaq has been of very little help to the
free *nix community in resolving this problem.

: What I don't know:
: 	- What do I need to do to make FreeBSD see all 48M of
: 	  memory?

The simple solution is getting rid of the Compaq.  Another option is
replacing the BIOS with an AMI or Phoenix that works with your Deskpro
5100.  To my knowledge there is no other way to get around this problem
with Compaqs under *BSD or Linux.  If someone knows a way, please post
it, I'd like to know.
--
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