• Please review our updated Terms and Rules here

Best Rom for GS

The ROM 00 is functionally obsolete. Apple did a free upgrade campaign back in 1987 to bring early machines to ROM 01 which fixed many bugs. A ROM 00 machine cannot run GS/OS (System 4.x or higher) due to lack of support. It works fine otherwise as a "fast" Apple IIe with built-in peripherals.
 
Per above, it would be pretty surprising to actually have a Rev0 ROM in your machine; if you upgrade the machine you'll want to hold onto the chip you pull out because it's kind of a collector's item. (Not because it's good for anything but, yeah, rare.) A ROM0 will have Apple part number 342-0077-A on top of the chip; if it says -B then you're already upgraded.

(If you're just guessing based on the case, well, I know lots of sources claim that most "Woz" IIgs-es are ROM0, and maybe they were when they were sold, but all three of the ones I've seen in the last decade were ROM1-ed already.)
 
ITs possible. I have come across one IIgs system with a Rom 0. Didnt realize until I tried to Run GS-OS and the machine failed to run. Swap it for a Rom 01 and problem solved. Its not rare, its not worth anything. Its just an obsolete Rom as mentioned already.
 
All the GSes I’ve touched were ex-school machines so, eh, maybe they were on a service contract. I’d still say hold onto it because people are weird about assigning value to “originality”.

(Witness the dopey obsession some Macintosh people have with insisting they need an “original” 128k Mac even if it means undoing a 512k upgrade which, believe me, was done back in the day for darn good reasons.)
 
IF you only want to Run apple II software and nothing IIgs related sure. Keep the Rom. I think I have my rom 0 somewhere. I kept it because it works and thats it. I can replace a failed rom with it... it has Zero Value.
 
Eudimorphodon said:
Per above, it would be pretty surprising to actually have a Rev0 ROM in your machine; if you upgrade the machine you'll want to hold onto the chip you pull out because it's kind of a collector's item. (Not because it's good for anything but, yeah, rare.) A ROM0 will have Apple part number 342-0077-A on top of the chip; if it says -B then you're already upgraded.

(If you're just guessing based on the case, well, I know lots of sources claim that most "Woz" IIgs-es are ROM0, and maybe they were when they were sold, but all three of the ones I've seen in the last decade were ROM1-ed already.)
Click to expand...

Yep mine is a B and the other one has 2 roms
 
There is no "B". Its just 0 (or 00), 1 and 3 (3 has a different board incompatible with versions before it)
 
The easy way is to power up the machine. The ROM 01 has copyright information on the screen, while the ROM 00 just says "Apple IIgs". You can also likely spitball it based on the date the board was manufactured. Apple usually stamped them with a 4-digit year/production week. The only ROM 00 I have encountered was in a school, still in active use in 1997 as a "fast" Apple IIe. Home users were more likely to upgrade due to actually running IIgs software.
 
You must log in or register to reply here.
Back
Top