Path: utzoo!attcan!uunet!husc6!bloom-beacon!tut.cis.ohio-state.edu!bgsuvax!drich
From: drich@bgsuvax.UUCP (Daniel Rich)
Newsgroups: comp.sys.apple
Subject: Re: Upgrading Apple II
Message-ID: <2850@bgsuvax.UUCP>
Date: 16 Sep 88 13:56:45 GMT
References: <8809152358.AA09359@crash.cts.com>
Organization: Bowling Green State University B.G., Oh.
Lines: 62

Since I may be one of the last remaining Apple ][/][+ techies still
using my computer :-), I will see if I can answer your questions....
(I will warn you though, this is all from memory, my manuals are back
at my aparment.)

From article <8809152358.AA09359@crash.cts.com>, by jeffj@pro-avalon.cts.COM (Jeff Jungblut):
> ----- 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.  

As long as your computer has Applesoft Basic installed on the
motherboard, it is a ][+.

> It has a Rev. 4 motherboard.
... description of the motherboard ...
> These two things cause me to suspect it may actually be an Apple ][.  

It has been a long time since I have seen an Apple with less than a
rev 7.  It sounds like your board is closer to the rev 0 talked about
in the Reference Manual.

> I would like to expand it to 64k.  I installed a 
> known good 16k RAM card (from an Apple ][+ ) in slot 0. 
... installation and testing description ...
> ...Is there something special I need to do because I have a REV. 4
> motherboard? 

I would suggest putting the 16K card into your computer and then
booting with your system master.  If it loads integer basic correctly,
than you have a working card.  You might also want to try any other
programs you have that access the card.  Remember on the ][+, you can
never truly have 64K.  The expansion memory is bank switched into the
same locations as the Applesoft Basic roms.

> 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?

This one is tricky.  My best suggestion (having never dealt with a rev
4 motherboard) would be to find an EPROM with the same pinout as the
2316B.  Then have someone copy your 2716 onto it.

> 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)

That sounds like it should do it....(I hope)  Just remember, I have
never dealt with a rev 4 motherboard.  I am assuming that it is more
like a rev 0 then the rev 7 I am used to.

	- Dan Rich	UUCP:	...!osu-cis!bgsuvax!drich
			CSNET:	drich@andy.bgsu.edu
			PHONE: (419) 372-6002

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