Well I just got my ACA-1231 but unfortunately it doesn't work with my A1200 even though I've had it working with many different cards like Blizzard 1260 and Apollos it somehow refuses to play with the ACA. Power led blinks and all I get is a yellow screen.
Yellow 68000 detected error before software trapped it (GURU)
I'm not sure what is causing the problem or if the card is faulty. I'm going to try and run it with another MB revision and go from there.