Hi melott,
You can only have a maximum of 8 megs of memory on the Zorro II bus. The 32-bit memory on the A2630 is on the Zorro II bus, so that is 2 megs already (it is the first memory that the Amiga 2000 sees). If you want faster SCSI hard disk access, then yes install the 2 megs onto the A2091 board. You will need 16 - 44256 DRAMs. So now that is 4 megs of memory on the Zorro II bus. Remove the Bridgeboard (if there is one) and install only 2 megs onto the SupraRAM board. You will need 16 - 1M X 1 DRAMs. So now that is 6 megs of memory on the Zorro II bus. A video board will use the remaining 2 megs of Zorro II bus space (a 1 or 2 meg board). STAY AWAY from 4 meg video boards. My advice: Remove the A2091 and A2630 boards and install a GVP Combo Board or a Blizzard Combo board. :-)
