Path: utzoo!attcan!uunet!husc6!mailrus!ames!pasteur!ucbvax!pro-avalon.cts.COM!jeffj
From: jeffj@pro-avalon.cts.COM (Jeff Jungblut)
Newsgroups: comp.sys.apple
Subject: Upgrading Apple II
Message-ID: <8809152358.AA09359@crash.cts.com>
Date: 15 Sep 88 23:53:09 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: pnet01!pro-avalon!jeffj@nosc.mil
Organization: The Internet
Lines: 27

----- Forwarded Message -----
From: tomk (Tom Kelly)

I am attempting to upgrade my Apple ][ computer.
The case says it is an Apple ][+ but I have my 
doubts about that.  It has a Rev. 4 motherboard.
In location A5 it has a 2513 chip rather than a 2316B. 
It has 48k of RAM and configuration blocks on the motherboard. 
These two things cause me to suspect it may actually be an 
Apple ][.  I would like to expand it to 64k.  I installed a 
known good 16k RAM card (from an Apple ][+ ) in slot 0. 
I removed the chip from E3 and put it on the RAM card. 
I plugged the ribbon cable from the RAM card into the E3 socket .
Both ends of the cable were installed properly.  All RAM chips have been 
verified to be good.  When I run a test of the memory, the 48k checks 
good but the extra 16k checks bad.  If I put the RAM card back in my 
other Apple ][+ the extra 16k checks good.  Is there something special I 
need to do because I have a REV. 4 motherboard?  I would also like to 
get lower case characters.  The problem is I can't just plug in the chip 
that is used in my other Apple ][+ (a specially programmed 2716 EPROM) 
because the pinout of a 2513 isn't the same as a 2316B and 2716. 
How can I get lower case without getting an 80 column card?
If anyone can help me with these problems, I will be very grateful. 
I can do the work if someone will tell me what needs to be done.
********** Thanks in advance.    ** Tom **

Tom Kelly (tomk@pro-avalon.cts.com)