Would anyone pay more than $20 for a ROM 0 IIgs?

[gsteemso]

Hi all,

I am the …proud? owner of two fully functional ROM 0 IIgses. I want to sell one and the board out of the other so as to swap in a ROM 3 board and be able to net-boot the latest system — but I can't find any other ROM 0 units for sale, so I don't know what to ask for them. I'm hoping that the two ROM 0 units together would cover the cost of a ROM 3 board. Anyone got hints for me?

G.

 

[Unknown_K]

That would be the board that shipped with the WOZ edition IIgs, so somebody with a dead Woz might want it. All in all it is the least wanted revision (3 being the best, 1 being the most common, 2 doesn't exist).

 

[papa_november]

I seem to remember some of the Woz editions shipped with ROM 01 boards. It looks like mine certainly did.

Also, are there any real hardware differences between ROM 00 and 01 machines? If not you should be able to upgrade just by burning/swapping in an 01 ROM.

 

[Dog Cow]

From the comp.sys.apple2 - Frequently Asked Questions (and answers) part 2 of 2 by Dan DeMaggio:

The GS represents a giant leap in the Apple // line.  It can still run //e
software, but has a better processor (16-bit), a new super-hires graphics
mode, a toolbox in ROM (just like the Mac) and a 32 oscillator Ensoniq sound
chip. It can not only run ProDos, but it can also run GS/OS, a sophisticated
operating system very much like the Macintosh's OS. The original GS ROM 00 (I
think they all have the Woz signature) one or two chips upgraded to boot/run
current software. The ROM 01 had 256K on the motherboard, while the ROM 03
has 1 MB.  Although there were a few ROM changes, the current system software
will work patch the toolbox ROMs to look identical.

...

Apple //GS:

There are 3 major versions of the GS: Check the initial power-up screen.  It
will say ROM 01, ROM 03.  If it does not say either, you have the Original
(Woz Signature edition). You must upgrade  it in order to run current system
software. The ROM 01 has 256K on the motherboard, while the ROM 03 has 1 MB
on the motherboard.   All the enhancements of the ROM 03 (except the 1MB, of
course) can be added to the ROM 01 simply by booting up with current system
software.

 

[Charlieman]

I seem to remember some of the Woz editions shipped with ROM 01 boards. It looks like mine certainly did.
Also, are there any real hardware differences between ROM 00 and 01 machines? If not you should be able to upgrade just by burning/swapping in an 01 ROM.

From memory, I think that Dog Cow is mostly right. However there were some non-ROM differences between the 00 and 01 boards -- ADB and timing corrections? Most of the time, applications will not notice the difference.

My Woz IIgs came from an enthusiast who ran the latest and greatest stuff on it. It boots up to declare itself as a ROM 01, but like most like it, it's an original board with ROM swap.

 

[ClassicHasClass]

I couldn't get a ROM 03 into my Woz fast enough. Who cares if it's not original; that, some RAM, a Transwarp and an AE HD make it a wonderful little box.