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From: chiu@ucsee.berkeley.edu
Newsgroups: comp.sys.apple2
Subject: Re: IIe to Enhanced IIe
Summary: Mother board swap? Hardly.
Message-ID: <1991Jun19.071818.18354@agate.berkeley.edu>
Date: 19 Jun 91 07:18:18 GMT
References: <nctams1!nctams1!pnet16!tomj@HUMU.NOSC.MIL> <9106190519.AA09423@apple.com>
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In article <9106190519.AA09423@apple.com> $CSB205@LSUVM.BITNET (Mark Orr) writes:
>
>|From:         Tom Jenkins <nctams1!nctams1!pnet16!tomj@HUMU.NOSC.MIL>
>|Subject:      IIe to Enhanced IIe
>
>|Could someone post a brief discussion about upgrading a stock IIe to an
>|enhanced unit?  Does this require a chip or chips?  And if so, what are they
>|and where can they be purchased?
>|
>|--Tom
>
>Going from an old //e to an enhanced //e requires a motherboard swap.
>The Enhanced //e motherboard contains a r65c02 processor, and changes the
>ROMs to support Mousetext characters. I'm pretty sure this can be done for
>less than $100 at your Apple dealer, but you can probably get it cheaper
>at a mail order place - like Roger Coats - or maybe that used component list
>posted here a couple of days ago.
>
I fear that you may have been misleaded by someone (an unknowledgable Apple
dealer perhaps?) Upgrade from a IIe to ehnanced IIe requirs mere replacement of
several chips -- character generator ROM (for mouse text), CD, EF ROM
(for new 80-column text firmware; old version contains some annoying bugs)
and a new CPU (65C02).

But if you're talking about from a Rev.A board, that's a whole different
ball game... (sort of)

Interesting thing about the enhancement upgrade -- The 'enhancement kit'
I purchased through mail order did not contain REAL Apple ROM chips!
(well, they certainly did not carry proper copyright stickers), although
they are functionally identical to the real thing. (Why hasn't Apple's
law-suit-happy lawers spring into action, YET?)

>|UUCP: humu!nctams1!pnet16!tomj
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>
>--------------------------------   "We were having a great time, but
>! Mark Orr                     !    Macintosh wasn't selling that well.
>! $CSB205 @ LSUVM.SNCC.LSU.EDU !    The Apple II was paying our way."
>!         @ LSUVM.BITNET       !                  - Guy Kawasaki
>--------------------------------      From his book: The Macintosh Way

-Dave C.