qlwiki:gigasoft_megaram

GigaSoft Mega-RAM

The Mega-RAM expansion card from ABC Elektronic allowed more than standard 640K RAM to be used on a QL. This unit replaced the original 68008 CPU and handled up to 3MB of RAM via a new CPU (the 68008FN) which was compatible with the 68008 but allowed extra addressing space up to 4MB.

A new command RAMEX enabled the new memory, after which the old 640K RAM could then be used as a ramdisc. With up to 2MB RAM, it was possible to use the old QL case, but the full 3 MB RAM version needed a new QL case.

The board was designed by Ulrich (Uli) Rosowski. The software to initialize the board was written by Jochen Merz.

The board was supplied with a patched version of the JS-Rom to support RAM > 640k and a special version was released to work with the Trump Card.

  • qlwiki/gigasoft_megaram.txt
  • Last modified: 2017/09/04 09:53
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