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From: cramer@kontron.UUCP (Clayton Cramer)
Newsgroups: net.micro.pc
Subject: Re: Memory addressing problem on PC-1
Message-ID: <770@kontron.UUCP>
Date: Tue, 6-May-86 14:29:15 EDT
Article-I.D.: kontron.770
Posted: Tue May  6 14:29:15 1986
Date-Received: Thu, 8-May-86 20:49:40 EDT
References: <162@pecnos.UUCP>
Distribution: net
Organization: Kontron Electronics, Mt. View, CA
Lines: 14

> I have and older IBM PC with a 64K motherboard.  I have added more memory
> with a multifunction card but I can only address 544K.  The switch settings
> for 640K don't work (and weren't documented in my original Operations
> Guide).   Does anyone know a way around this?  
> 
> -- 
> Jim Moseman @ CONCURRENT Computer Corporation, Tinton Falls, N.J.
> ...!vax135!petsd!jjm

I also have an antique PC-1.  You need to replace the ROM BIOS on the
motherboard.  IBM sells it on an exchange basis for $50.  This also makes
it capable of booting from a hard disk directly.

Clayton E. Cramer