Most accelerators can be expanded over 8 MB.
It's only the cheepish ones that put it's memmory in the autoconfig adressspace (that overlaps with the PCMCIA adresspace and is only 8 MB in size) to save the logic to handle the memory by it's own.
Typical all bare RAM-cards, 020 accelerators for the A1200 and most of the m-tec 030 fall into that category.
On all other card the memory is only limited by the size of SIMM that fit physically / are available (as for GVP)
The 1230IV can take up to 128 MB, 256 MB with additional SCSI-kit that has another SIMM-slot.
