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  1. #1
    Venice
    Guest
    Unhappy imac G4 CPU Upgrade
    Hello there. I have an imac flat pannel G4 800mhz and I've decided that, with the release of World of Warcraft, I either need to update my Mac or buy a new one (it'll be difficult to get my parents to agree to the latter >_< so that I can play a game). I was wondering, is there anyway I can upgrade the CPU of my imac? I've been looking around and all I can seem to find are PowerMac upgrades, but none for G4 imacs. Thanks for any help you can offer, it's much appreciated!

  2. #2

    Avalon's Avatar
    Member Since
    Jun 25, 2004
    Location
    Luxemburg, Europe
    Posts
    1,779
    Specs:
    PowerMac G5 Dual 2GHz (June 2004), 2.5GB, Airport, black 5G iPod 30GB, white MacBook 2.0 2GB
    Well, that's because there are no CPU upgrades for the flat panel iMac...
    The CPU is soldered on the logic board, so there's no way to upgrade it.

    If gaming is so important for you, you shouldn't have bought a Mac, game support for Mac just simply sucks...

  3. #3
    Venice
    Guest
    You know, I vaguley remember reading something about that when we bought it. I never play PC games btw, but WOW caught my interest. Well, guess it's back to the drawing board. I need to figure out a way to get my parents to buy a new computer....hmmm...anyway, thanks for your help, you've saved me much angst (and I can finally go to bed).

  4. #4


    Member Since
    Oct 05, 2011
    Posts
    2
    Angry
    i'm sorry to go for a necro posting but i 'd like to know why soldered cpu's can't be unsoldered and updated ?
    iMac G4 flat panel
    leopard 10.5.8

  5. #5

    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
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    35,369
    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Quote Originally Posted by harlock59 View Post
    i'm sorry to go for a necro posting but i 'd like to know why soldered cpu's can't be unsoldered and updated ?
    Normally my "knee-jerk" reply usually is to say no...but I don't like to think anything is impossible. But in 99.9999999% of the situations...no...a soldered cpu cannot be unsoldered & upgraded.

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  6. #6

    Stretch's Avatar
    Member Since
    Jan 13, 2007
    Location
    Central New York
    Posts
    4,773
    Specs:
    15in i7 MacBook Pro, 8GB RAM, 120GB SSD, 500GB HD
    Because you need robotic precision and minute amounts of solder to to put the CPU onto the logic board. No person has that skill do remove and replace without damaging surrounding components.
    Blog and Photo Gallery: http://philolin.me/

    Currently running OS X 10.10

  7. #7

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    49,088
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    Because you need robotic precision and minute amounts of solder to to put the CPU onto the logic board.
    Modern multi-layer circuit boards really aren't even soldered per se. They're "dipped" in a hot solder bath done by a robot. What member "Stretch" says is true because there is no way you and I could do the same thing even if we had the right equipment.

  8. #8

    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    35,369
    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Here's about a 10 minute video on how motherboards/logic boards are made:

    How to make a Motherboard - A GIGABYTE Factory Tour Video - YouTube

    In regards to the soldering process...(to simplify things) it's kind of a 3 step process:

    1. The bottom side of the board is "smeared" with a layer of solder-paste.
    2. Most of the small integrated circuits, cpu, gpu are placed on the board.
    3. The motherboard then goes thru a "Reflow Oven" where the board goes thru a "reflow-soldering" process.

    Reflow soldering - Wikipedia, the free encyclopedia

    Nothing is hand-soldered! Everything is just too small & too tightly packed for it to be even remotely possible for someone to desolder & solder components.

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

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