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3GB of Ram in a G4 Quicksilver?

Discussion in 'PowerPC Macs' started by scalnajim, Aug 28, 2008.

  1. macrumors newbie

    I was hoping to install 3-1GB PC-133 168-Pin Non-ECC non-Reg SDRAM Memory in a Quicksilver G4. Would this memory work?

    G4 Quicksilver 1.8 GHZ 2TB Sata Raid.

  2. macrumors 68000

    It has a 1.5GB limit.
  3. macrumors 601


    You can try installing them but the hardware won't see them.
  4. macrumors 6502a

    Lord Zedd

    1.5GB is the limit. Adding more is a waste of money since the hardware won't use it all.
  5. macrumors 65816

    It can only address modules of a maximum of 512 MB density, hence the 1.5 GB limit. Be sure to get low-density 512 MB chips, btw.
  6. macrumors 68040


    I thought it was a 2 gb limit in QS PMs.

    1.5 is only if you boot in OS9?
  7. macrumors 68000

    It's a hardware limit, not a software issue.
  8. macrumors 65816

    The QS G4s have only three memory slots, unlike the earlier (and later) G4s. They can only address 1.5 GB due to the maximum 512 MB DIMM density.

    Mac OS 9 did indeed have a 1.5 GB memory limit, and a maximum of 999 MB for any given application.

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