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From: djs@ttrdc.UUCP (Dennis J. Svobod)
Newsgroups: net.micro.mac
Subject: Engorge Your Mac problews?
Message-ID: <412@ttrdc.UUCP>
Date: Wed, 11-Sep-85 12:40:30 EDT
Article-I.D.: ttrdc.412
Posted: Wed Sep 11 12:40:30 1985
Date-Received: Thu, 12-Sep-85 11:06:38 EDT
Organization: AT&T, Computer Systems Division, Skokie, IL
Lines: 28

Has anyone else out there had any success/problems with implementing
the 'Engorge your Mac' memory upgrade posted to the net? I
had a terrible time getting mine to work. I finally had to borrow
a logic analyser to determine the problem. It seems to me that
some of the circuitry is unnecessary, and additional circuitry needs
to be added. I have piggy-backed rams on top of the bottom ones, done
the modifications that I thought neccesary and finally got the thing
to work. I can't see how the unmodified 'Engorge your Mac' circuitry
would EVER work. Perhaps putting the circuitry on a separate board
adds some delay which somehow makes it work by sheer luck, but it
does'nt seem too likely to me.

	After getting mine to work, I have been using it quite alot. 
The 512K above the screen is used exclusively for RamDisk. This is not
that bad, since you can have a large system file plus a couple of
applications on the ram disk without eating away at your Fat-Mac's memory.
It's also handy in a development environment. I use Aztec-C and can fit
all necessary tools (compiler,assembler etc.) , plus all the 
Toolbox include files on the Ramdisk. The only problem I have found
is that all the files that I want to preload the Ramdisk with don't
fit on a single 400K diskette. This means a second disk must be inserted
to get these files loaded. Oh, well, I guess this problem will go away
when the 800K drive is out.
	Since doing the 1M upgrade I don't need the external drive. (It would
be nice for transferring files from disk-to-disk, but is not neccesary)

	..ihnp4!ttrdc!djs	(a friend's account) 
	Frank Owen