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Single Expansion
AX-RAM
Manufacturer
S.E. Watts Electronics
, Australia
Date
1989
Amiga
A500
Interface
trapdoor slot, Gary socket
Memory Expansion
expansion adds up to 512 kB ChipRAM and up to 2 MB FastRAM
sixteen DIP sockets
supports 256k×4 DIPs (514256)
accepts DIPs in groups of four giving 0.5, 1, 1.5 or 2 MB configurations
battery backed up clock
the main board connects to the trapdoor slot
comes with Gary adapter board GR-1, which is required for 1.75 resp. 2 MB RAM - without it, the memory expansion is limited to 512 kB
with Fat Agnus 8372, 512 kB memory can be used as ChipMem, resulting in 1 MB Chip memory in total - for that, the Gary adaptor board is necessary
supports four memory configurations:
1.75 MB FastRAM (Autoconfig) + 0.25 MB RAM (AddMem)
2 MB FastRAM (Autoconfig)
0.5 MB ChipRAM + up to 1.5 MB FastRAM (Autoconfig) - requires soldering a wire from Gary adapter GR-1 to Jumper JP2
0.5 MB ChipRAM + up to 1.5 MB FastRAM (AddMem)
Driver / Installation Disk
AX-RAM-21.dms
Tool Disk
AddMem v2.1
10 kB