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From: andy@thelink.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Re: 768K on Leading Edge PC
Message-ID: <90@thelink.UUCP>
Date: Thu, 5-Feb-87 22:52:45 EST
Article-I.D.: thelink.90
Posted: Thu Feb  5 22:52:45 1987
Date-Received: Sat, 7-Feb-87 19:10:13 EST
References: <40@excalibur.UUCP>
Organization: The Link, South Bend, IN
Lines: 16

Re: Memory in Leading Edge D's.

About 4 months ago, Leading Edge changed their board design to use
all 41256 RAMs.  Previously it came with two rows of 4164's, with
two empty rows that you could stuff.  Now it comes with two rows
of 41256's with room for another row.  Yes, this is 768K.  Can you
access it?  Yes and no.  The next 64K above 640K is unused, unless
you have EGA.  There was a small assembly language program published
in the Byte IBM PC issue November 1986 that would tell the BIOS you
had 704K of RAM, initialize the extra RAM, and reboot.  I have not
actually tried this program, but it's something to try.  The other
64K of RAM is most likely mapped out, since this is where CGA and
MGA RAM start.

Andy Dustman ({ihnp!alpha,iuvax!ndmath}!ack!andy)
Computer Specialists