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  1. #1

    Member Since
    Oct 02, 2008
    Erie, PA
    Mac OS X Leopard, 2.4GHz Intel Core 2 Duo iMac, 2GB 800MHz DDR2 SDRAM
    G5 Processor upgrade - true that you cannot?
    I understand that I cannot upgrade my processor speed no matter what on my iMac 1.8 GHz processor. Is that really true? It seems hard to believe that I have to pony up for an entirely new system when all I really need is more speed. Well, more than 2GB of RAM would help, too, and I understand that I cannot upgrade that, either.

    Am I really stuck buying an entirely new computer for a little more speed and memory? Is this Apple's Achilles Heel? Don;t get me wrong, I love my Mac over my Windows infested PC, but at least I could upgrade components.


  2. #2

    hughvane's Avatar
    Member Since
    May 18, 2008
    Amberley, Canterbury, New Zealand
    MacMini 4.1, OS 10.11 and 10.6; Macbook Pro 8.2, OS 10.12, MacBook 4.1, OS 10.6.8
    According to, for all 1.8 GHz G5 iMacs, you're stuck with the original processor.

  3. #3

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Nambucca Heads Australia
    iMac, i7 4GHz, 32GB memory, 1TB Blade Drive, OS X.13.4
    Your imac is now four years old and the slim design of the machine incorporates the CPU as part of the logic board so an upgrade similar to the G4 towers etc. is not possible, alas.

    Best result maybe to sell prior to release of Snow Leopard, which is reported to be multi core Intel compatible only, and look for an Intel iMac.

  4. #4

    Aptmunich's Avatar
    Member Since
    Mar 09, 2004
    Aluminium Macbook 2.4 Ghz 4GB RAM, SSD 24" Samsung Display, iPhone 4, iPad 2
    The only Macs that are officially upgradeable internally are PowerMacs / Mac Pros. You're usually limited to RAM and the harddrive on all other models.

    The RAM is limited by the motherboard / chipset, but even PCs from that era are likely to be capped to about 2GB.

  5. #5

    Member Since
    Nov 16, 2008
    Quote Originally Posted by hughvane View Post
    According to, for all 1.8 GHz G5 iMacs, you're stuck with the original processor.
    He's right.

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