Amiga 2000 not showing all RAM present

[TheMagicM]

Ok, I have a 2630 with 4MB, another board with 4MB and 1 MB chip.  All of that is present and accounted for in WB  2.1.   When I install another board with 2MB, showconfig shows the board present I'm short the 2MB. I've tried 2 different 2MB boards with the same result.

Is there anything I'm missing?

[Oldsmobile_Mike]

A2000 only supports up to 8MB of fast ram in the Zorro 2 address space. Any more and you'll have to add an accelerator that lets you put ram into the 32-bit area.