dukelow@noscvax.UUCP (Robert A. Dukelow) (06/09/86)
I recently bought a Visual "Commuter" computer from DAK. It is software compatible with the IBM/PC - but not hardware. As an aside, I am well satisfied with DAK. The problem is that I bought the 256K version but would now like to upgrade to 512K. The operations manual has very little technical info - but does provide the DIP switch settings for various memory configurations. There is one row of populated 256K memory with an empty row of sockets next to it. I installed the additional memory and changed the switch settings. The ROM diagnostics now indicate 512K, but the memory diagnostics fail (reads FF for all locations above 256K as far as I can tell). I would appreciate any suggestions. The operations manual doesn't actually say what is required to upgrade the memory (it is assumed that you send it back to Visual for upgrades) - but I couldn't find any obvious jumpers or sockets that looked like they could be related to memory configuration. Anybody know if Visual is even still alive? The telephone operator didn't have a listing for the city listed in the manual. I haven't tried going back through DAK yet. --Thanks, Bob Dukelow (dukelow@nosc)