Re: ROM 00 to ROM 01 upgrade

["Paul Grammens" <grammens@svn.net>]

"Steve Q" <sqnospam@superbio.notrash> wrote in message
RumorMill--118226536425148524@mail2.chatter.com">news:RumorMill--118226536425148524@mail2.chatter.com...
> Greetings, all...
>
> I've got a ROM 00 "Woz Limited Edition" boat anchor that I picked up
cheaply
> some time ago.  I got on the horn with AllTech a few days ago and asked
> about the ROM 01 upgrade that they've been known to carry, and I was lucky
> enough to hear "We have one left."  OK, it's on its way to me, and at
least
> I'll be able to boot GS/OS on this thing.
>
> My question is this:
>
> I'm not much of an electronics person, but a good friend -is.-  Let's say
> that I'd like to copy these ROM 01 upgrade chips, so that if I'm ever in
> this predicament again, I can simply roll my own (and for personal
use...I'm
> certainly not looking to pee on anybody's lawyers or anything like that).
> Is this doable?  If so, what kind of chips would I need to get?

You could program some eproms, but you'd need an expensive programmer.  The
upgrade also has a video chip, dunno if you can buy that anywhere.

The ROM 01 is by far the most common IIgs.  The ROM 03 is more desirable,
and it is easy to recognize. Pop the top, and look down along the right side
of the power supply. If you can see the battery, it's a ROM 03. On the
others, the battery is underneath the power supply.  So if it doesn't have a
visible battery, 9 times out of 10 it's going to be a ROM 01.  You can get
the parts off a ROM 01 to upgrade a ROM 00 if you want, or just swap the
motherbd.

Any
> suggestions, specs, etc, would be greatly appreciated, and thanks in
> advance.   And yes, my wife has reminded me that I pour more money into
> these systems than what they're worth, but dammit, it's not the kill but
the
> thrill of the chase. :-)
>

Ah, well, people here will be happy to sell you all the ROM 00 upgrade parts
you want.  ;-)
For all the info you could want, check the faq:

http://home.swbell.net/rubywand/A2FAQs1START.html

-Paul