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    Rainbow 100A Memory beyond 256K?

    Hi folks -- dumb question du jour: Does anyone know if it's ENTIRELY impossible to expand the memory on a Rainbow 100A past the 256k mark? I did acquire a 100B expansion board, but the naive approach of inserting it (it's configured correctly) just hangs the machine immediately. I had seen...
    • alitel
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    • Replies: 59
    • Forum: DEC
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    Ontario WTB Dec Rainbow 100B or 100+ (or parts thereof)

    Hi all -- I have a Rainbow 100A which I love, but would love to find a 100B or 100+ that can support more than 256kb RAM. I know these are rare and pricey, but hey :)
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    Ontario IBM PS/2 Units for Sale: Model 50 and Model 77

    Hi all -- I've restored two machines that I'd like to move on to a good home. These are both fully working. Model 50: Original 1987 (not the 50Z). With 80287 coprocessor. 1.44MB Floppy. 1MB on board plus 2MB in IBM 286 Memory Expansion Adapter. McIDE MCA IDE controller with IDE HDD (currently...
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