jeff0172
Experienced Member
is there any way to tell what rom it is by just looking at the mobo? i know the rom 3 has more ram but does anyone know the mobo number for a rom 3?
ROM3 has different physical layout. ROM0 and ROM1 cannot be easily distinguished without powering the unit since a lot of ROM0 were upgraded to ROM1 (ROM chip swap, and maybe VGC too) You can probably find out the part number of ROM chips for ROM0 and ROM1 and look it up that way. Google is your friend.is there any way to tell what rom it is by just looking at the mobo? i know the rom 3 has more ram but does anyone know the mobo number for a rom 3?
is there any way to tell what rom it is by just looking at the mobo? i know the rom 3 has more ram but does anyone know the mobo number for a rom 3?
The upgrade kits are considered uncommon today because the cost of the upgrade kit was nearly that of a new IIGS, so very few people bother to upgrade their IIe. Earlier production of board in IIGS'es were common with the board in the upgrade kits, as evident by a large number of ROM0/ROM1 IIGS with IIe keyboard header populated. After Apple cease production of the upgrade kit, boards for ROM1 IIGS no longer populate the IIe keyboard header, though the solder pads are still present.ROM0 and ROM1 have solder pads for a //e's keyboard, for the fairly rare "//e to IIgs upgrade" apple sold.
The upgrade kits are considered uncommon today because the cost of the upgrade kit was nearly that of a new IIGS, so very few people bother to upgrade their IIe. Earlier production of board in IIGS'es were common with the board in the upgrade kits, as evident by a large number of ROM0/ROM1 IIGS with IIe keyboard header populated. After Apple cease production of the upgrade kit, boards for ROM1 IIGS no longer populate the IIe keyboard header, though the solder pads are still present.
No. ROM3 boards are laid out differently. The link I posted has pics of both ROM0/1 and ROM3. As-is doesn't mean broken, it means people don't want to deal with returns. "Unknown" is the one that sets off alarms in my head...anyway i can upgrade my rom1 to a rom3? or would it just be cheaper to buy a rom 3 mobo? i found a few rom 3 mobos on ebay but they all want 100.00+ for them and they are as-is so as-is on ebay basicly means broken lol
Agreed, newer ROMS are not always better ROMS, it depends on your end plans.........You probably want to stay with ROM1 anyways since it has less compatibility issues with software.
Agreed, newer ROMS are not always better ROMS, it depends on your end plans.....
If your goals are running older classic Apple II titles, stick with a ROM1/0 they are more compatible.
If your goal is running only GSOS and GSOS apps, then ROM3 may be your best bet due to more GSOS routines in ROM, and more RAM.
Even if your goal is GSOS only, the cost of a ROM3 board kind of negates the benefits of it, you can still do all the GSOS stuff on a ROM0/1, just with a bit less RAM on the board (you can still add more RAM to either). 4MB is really enough for just about anything that will run on a IIgs, and you can get up to that much on ROM0/1 systems just as easily as a ROM3 (with a 4mb upgrade card, a ROM0/1 will have 4.25mb and a ROM3 would have 5mb).
i have seen a couple of 4mb cards but they are to pricey could i just mod my current one with 1mb ram simms?
What compatibility issues do you speak of? I've been using the ROM03 for ages and the only software I've had issues with is Skate or Die and Shufflepuck Cafe. The ROM03 has more built-in RAM and is faster with GS/OS so unless playing these 2 games is the deal-breaker, I see the ROM03 as the better option.You probably want to stay with ROM1 anyways since it has less compatibility issues with software.
Here is a page of someone who has done just that. I don't know your level of soldering experience so I cant say if that would be something you could undertake or not. If you are not comfortable with a soldering iron the only EASILY found option is the card from Briel Computers, you can buy it without RAM to save some money if you have a stock of 1mb 30pin simms already.
What compatibility issues do you speak of? I've been using the ROM03 for ages and the only software I've had issues with is Skate or Die and Shufflepuck Cafe. The ROM03 has more built-in RAM and is faster with GS/OS so unless playing these 2 games is the deal-breaker, I see the ROM03 as the better option.
i am fine with soldering i have been in the rc hobby for 9 years now witch requires me to solder almost everyday
Then you can probably undertake the 4mb upgrade to your existing 256kb/1mb card. Would save yourself some money since you could build this mostly just for the cost of the SIMMS.
yup the only problem no is that he didnt post a wireing diagram i see that he added some 22awg wire to the card
think these would work?