{"id":7978,"date":"2021-10-22T13:41:46","date_gmt":"2021-10-22T12:41:46","guid":{"rendered":"http:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/?p=7978"},"modified":"2024-02-21T11:03:02","modified_gmt":"2024-02-21T11:03:02","slug":"7978","status":"publish","type":"post","link":"https:\/\/www.intexsound.de\/Commodore-Museum-Mannheim\/2021\/10\/22\/7978\/","title":{"rendered":"A2000-A 1MB RAM Expansion"},"content":{"rendered":"

A2000-A 1MB RAM Expansion<\/span><\/strong><\/p>\n\n\n\n
\n
Company<\/div>\n

Commodore, USA<\/td>\n

\n
Date<\/div>\n

1986<\/td>\n

\n
Amiga<\/div>\n

A2000<\/td>\n

\n
Interface<\/div>\n

CPU slot<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/div>\n
\n

currently not working, producing a black screen<\/p>\n

all sockets populated totalling 1MB of additional RAM<\/p>\n<\/div>\n

\n
    \n
  • the built-in Fast RAM card of the A2000-A (which has only 512 kB Chip RAM on its motherboard)<\/li>\n
  • 512 kB RAM soldered on board (16 DIPs), 150 ns<\/li>\n
  • 16 additional DIP sockets accept another 512 kB RAM for 1 MB total<\/li>\n
  • accepts 256k\u00d71 DIPs only<\/li>\n
  • maprom function<\/li>\n
  • possible configurations:\n
      \n
    • 512 kB system RAM<\/li>\n
    • Kickstart RAM<\/li>\n
    • 1 MB system RAM<\/li>\n
    • Kickstart RAM + 512 kB system RAM<\/li>\n<\/ul>\n<\/li>\n
    • connects to the CPU slot<\/li>\n<\/ul>\n

       <\/p>\n\n\t\t