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Mem Upgrade of a Gericom Overdose II XXL Mod. S3100S (SiS630, PIII800MHz)

Discussion in 'Electronic Repair' started by markus wolfgart, May 25, 2007.

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  1. Dears,

    I try to upgrade a Gericom NB as described in the subject line.
    The original SO-DIMMS 2x64MB consist of fore 8Bit Mem-Chips,
    two on each side.

    My replacement 2x256MB SO-DIMMS consist of 8x 4Bit Mem-Chips, fore on
    each side, and as result the NB recognizes only 256MB RAM.

    For better understanding I would like to now if a Bios upgrade could
    help to get the full mem capacity or if this problem occurs due to hw
    layout of the mb or Sis630 chip.

    Many thanks in advance.

    Markus
     
  2. Franc Zabkar

    Franc Zabkar Guest

    FWIW, this is the datasheet for the SiS630 chip:
    http://www.newsunpc.com/down/sis630.pdf

    Integrated DRAM Controller
    3-DIMM/6-Bank of 3.3V SDRAM
    Supports NEC Virtual Channel Memory (VC-SDRAM) Technology
    Supports Memory Bus up to 133 MHZ
    System Memory Size up to 1.5 GB
    Up to 512MB per Row
    Supports 16Mb, 64Mb, 128Mb, 256Mb, 512Mb SDRAM Technology

    - Franc Zabkar
     
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