iMac 5.2 - More than 3 GB of memory in Tiger or Leopard?

Discussion in 'iMac' started by testinz, Aug 24, 2008.

  1. testinz macrumors newbie

    Aug 19, 2008
    Does Tiger supports more than 3 GB of memory?

    How about Leopard? Will it ever support more than 3 GB of memory?

    I am planning to upgrade the memory but there's no point of upgrading to 4 GB if the OS does not support it?

    The memory guide is on here:

  2. Eidorian macrumors Penryn


    Mar 23, 2005
    I believe you're limited to 2 GB of RAM even on that Core 2 Duo iMac.
  3. mklos macrumors 68000


    Dec 4, 2002
    My house!
    The limitation is with your iMac, not Mac OS X. The chipset in your iMac will only support up to 2GB of RAM and that cannot be changed at all. Its just a limitation of the computer.

    Mac OS X version 10.4 and 10.5 will support many gigabytes of RAM. Since 10.5 is a 64 bit OS, it can truly support hundreds of gigabytes of RAM.
  4. Cave Man macrumors 604

    Cave Man

    Feb 12, 2007
    Neander Valley, Germany; just outside Duesseldorf
    Core Duo/Calistoga iMac = 2 gb RAM max
    Core 2 Duo/Calistoga iMac = 3.3 gb RAM max (2x2 gig sticks, but can take a 2 gig and a 1 gig for 3 gigs)
    Core 2 Duo/Santa Rosa iMac = 4 gb RAM (and perhaps 8 gb RAM) max
  5. testinz thread starter macrumors newbie

    Aug 19, 2008
    Thanks guys for the information.... I will probably go get 2x2 then.... 3.3 is better than 3.0 :)

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