ObeyDaleks
Well-known member
So here's an update. I flashed new 4.11 and 4.01 ROMs, and neither of them worked. Both of them produced a chime, but no video and the computer froze. I found a version 3.07 dump as well but don't have any more eproms, so I had to order a few more. My guess is it's not a ROM issue but rather the hardware is not capable of supporting Mac II. I read somewhere that the first release was exclusively for the IIci, which is probably what this card is. I will try the 3.07 rom, as well as any older version I am able to find.
Interestingly, the programmer was unable to read the original ROM from the card (some error indicating a pin issue), which is a mystery since the computer was able to POST with that ROM installed.
I might be doing something wrong, this is the first time I've used a programmer. But it's so straightforward, I'm not sure what I could be doing wrong. I literally pick the eprom model from the list (AT27010 PLCC32), load the rom dump, then write to the eprom. It writes and verifies. It even has a feature to verify that the eprom matches the rom dump.
Interestingly, the programmer was unable to read the original ROM from the card (some error indicating a pin issue), which is a mystery since the computer was able to POST with that ROM installed.
I might be doing something wrong, this is the first time I've used a programmer. But it's so straightforward, I'm not sure what I could be doing wrong. I literally pick the eprom model from the list (AT27010 PLCC32), load the rom dump, then write to the eprom. It writes and verifies. It even has a feature to verify that the eprom matches the rom dump.