Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!cs.utexas.edu!uunet!crdgw1!ge-dab!peora!joel
From: joel@peora.ccur.com (Joel Upchurch)
Newsgroups: comp.sys.ibm.pc
Subject: Re: BIOS Shadowing / Memory usage???
Message-ID: <3921@peora.ccur.com>
Date: 17 Jul 89 13:31:52 GMT
References: <6541@athertn.Atherton.COM>
Distribution: usa
Organization: Concurrent Computer Corp, Orlando FL
Lines: 17

In article <6541@athertn.Atherton.COM>, jimb@athertn.Atherton.COM (Jim Burke) writes:
> only find 640Kb of memory.  I contacted the company I bought the system
> from and they said the other 384Kb is used by the system for system stuff
> like bios shadowing, etc.  My question is this: is this a reasonable 
> explaination?  Does bios shadowing actually capture main memory and make
> it transparent to DOS?  What other system features use main memory this
> way?  Seems to me that I didn't get a 1Mb machine, but rather a 640Kb
> machine.

My computer is a 16 MHz 286 using the NEAT chipset and the AMI BIOS.
It will let the 384kb either be configured as extended memory or be
used for ROM shadowing. It won't let it be configured as expanded
memory though, which is what I have the other 3 megs configured as.
-- 
Joel Upchurch/Concurrent Computer Corp/2486 Sand Lake Rd/Orlando, FL 32809
joel@peora.ccur.com {uiucuxc,hoptoad,petsd,ucf-cs}!peora!joel
Telephone: (407) 850-1040   Fax: (407) 857-0713