Thanks for important info. I'll think twice before cut anything, but A590 definitely would make this machine much more usable. I have 512Kb Chip RAM available, so 4Mb Fast mem is a welcome addition and ofcourse hd drive!
Mmmhhh... maybe I don't remember well (I have an A590 but it's not working - have to repair it), but inside the A590 you can mount just 2MB of Fast RAM with DIP chips (generally 120ns).
Anyway it's enough for first expanded setup like yours.
BY!
