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)