Hello all,
first of all, wanted to give the biggest shoutout to @Big Ben for doing literally doing everything regarding modding the 7100 rom, and of course a huge shoutout to all who found the ROMS and got em uploaded for the community to make use of.
I would like to kind of recreate big bens guide. I found myself kinda struggling trying to follow his guide, but Im certain that its PEBKAC but im making this regardless in case anyone falls into the same issues as me.
Step 1:
you're gonna wanna get yourself a T48 TL866 programmer, can be commonly found on amazon or similar sites.
you're also gonna wanna grab this sopp44 adapter, or similar ones, but that is the one I ordered, so I know it works.
the chips you're going to want to use are AM29F800BB-55SE I have ordered (accidentally) 70sc ones, im not sure if they will work, I will test and update.
the last thing you'll need, of course, is a PM7100 ROM Simm, but a specific model that seems quite common this one vvvvvvvv
Step 2:
label your ROMs!! I would make sure to label it however you see fit.
I just used sharpie, as I did not need it to last long, just until it was soldered on.
Step 3:
Program the ROMs! I used the program included with the t48, but im sure whatever you use will work. Big Ben did amazing work to figure out how to splice up the roms and whatnot, and I do recommend if you haven't seen it to go take a look to get the full idea of how this happened, but im just going to upload the pre spliced, pre named files.
Step 4:
Desolder the old roms.
Step 5:
Solder on the new roms
Step 6:
you're going to have to bridge WE# and RESET# on each chip to Vcc, you can do this however you'd like, on another Simm, I intend to try and make it a lot prettier, but this is what I got, just to make sure all works.
and that should be it! should just boot literally like any old school Mac, cursor, grey scree, ? floppy if ya don't have a disk in. just straight up boots like a Mac, didn't have to do anything. video works, I have not gotten the ethernet to work yet, but it does see the card in, haven't done enough I had to desolder and flash the chips twice, oddly booted to a white screen that didn't go past, but did boot into OF just wouldn't go past.
runs a tad slow, 200mhz, 196mb ram, no cache..., there is a video of it booting as well. imma try some gpus and whatnot at some point, I really wanna see if linux will boot at all, that would be awesome, but alas, I need sleep.
first of all, wanted to give the biggest shoutout to @Big Ben for doing literally doing everything regarding modding the 7100 rom, and of course a huge shoutout to all who found the ROMS and got em uploaded for the community to make use of.
I would like to kind of recreate big bens guide. I found myself kinda struggling trying to follow his guide, but Im certain that its PEBKAC but im making this regardless in case anyone falls into the same issues as me.
Step 1:
you're gonna wanna get yourself a T48 TL866 programmer, can be commonly found on amazon or similar sites.
you're also gonna wanna grab this sopp44 adapter, or similar ones, but that is the one I ordered, so I know it works.
the chips you're going to want to use are AM29F800BB-55SE I have ordered (accidentally) 70sc ones, im not sure if they will work, I will test and update.
the last thing you'll need, of course, is a PM7100 ROM Simm, but a specific model that seems quite common this one vvvvvvvv
Step 2:
label your ROMs!! I would make sure to label it however you see fit.
I just used sharpie, as I did not need it to last long, just until it was soldered on.
Step 3:
Program the ROMs! I used the program included with the t48, but im sure whatever you use will work. Big Ben did amazing work to figure out how to splice up the roms and whatnot, and I do recommend if you haven't seen it to go take a look to get the full idea of how this happened, but im just going to upload the pre spliced, pre named files.
Step 4:
Desolder the old roms.
Step 5:
Solder on the new roms
Step 6:
you're going to have to bridge WE# and RESET# on each chip to Vcc, you can do this however you'd like, on another Simm, I intend to try and make it a lot prettier, but this is what I got, just to make sure all works.
and that should be it! should just boot literally like any old school Mac, cursor, grey scree, ? floppy if ya don't have a disk in. just straight up boots like a Mac, didn't have to do anything. video works, I have not gotten the ethernet to work yet, but it does see the card in, haven't done enough I had to desolder and flash the chips twice, oddly booted to a white screen that didn't go past, but did boot into OF just wouldn't go past.
runs a tad slow, 200mhz, 196mb ram, no cache..., there is a video of it booting as well. imma try some gpus and whatnot at some point, I really wanna see if linux will boot at all, that would be awesome, but alas, I need sleep.
Attachments
Last edited:
