The SE/30 can accommodate 128 megabytes of memory, and the IIx, IIcx, IIci, and IIfx can also do 128MB. The IIvi/vx/P600 are said to accomodate 68 megs of memory and the IIsi, 65 megs.
I had either 33 or 65 megs in my IIsi back when I had and was using it. I had a Performa 600 (IIvx) as well, but never really put a whole bunch of memory in that system. Maybe 16-20 megs or there-abouts.
At about the same time, I also had an 840 and it never made sense for me to try to hot-rod a II series system beyond what my 840 was able to do, because this was well before RAM had that much bearing on how fast a computer worked (in the way that just adding more RAM to a new Mac today will help the whole system run faster because the system will fill it with disk cache, etc.)
I used my IIsi's unusually high amount of RAM (it came to me that way) and an FPU that had been installed to run A/UX, which was probably the only thing it ever did that my 840 couldn't or didn't do better, even if the 840 didn't have as much memory. (I think I had 40 or 48 megs in my first 840 though.)
I had either 33 or 65 megs in my IIsi back when I had and was using it. I had a Performa 600 (IIvx) as well, but never really put a whole bunch of memory in that system. Maybe 16-20 megs or there-abouts.
At about the same time, I also had an 840 and it never made sense for me to try to hot-rod a II series system beyond what my 840 was able to do, because this was well before RAM had that much bearing on how fast a computer worked (in the way that just adding more RAM to a new Mac today will help the whole system run faster because the system will fill it with disk cache, etc.)
I used my IIsi's unusually high amount of RAM (it came to me that way) and an FPU that had been installed to run A/UX, which was probably the only thing it ever did that my 840 couldn't or didn't do better, even if the 840 didn't have as much memory. (I think I had 40 or 48 megs in my first 840 though.)