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iMac A1225 24" MB420LL/A 2009 - 3.06GHz Logic Board 820-2491 661-4992 NO CPU

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  • Genuine Apple Logic Board for the Early 2009 24" iMac with discrete GPU.  It was used in all configurations using the NVIDIA GeForce GT 120, NVIDIA GeForce GT 130 or ATI Radeon 4850.  

    Please note that the 2.66GHz model with the Nvidia 9400M, model MB418LL/A is not compatible with this part.

    CPU Not Included


    Apple iMac 24 Inch Early 2009

    Identifiers: iMac 9,1 - A1225 - 2267

    Model Numbers





    Socket LGA 775

    Intel Core 2 Duo Wolfdale 

    Supported Processors E8135 E8335 E8435


    • 1066MHz DDR3 SDRAM
    • two SO-DIMM slots support up to 8GB Total (2x4GB)

    Graphics Options

    • NVIDIA GeForce GT 120 with 256MB of GDDR3 memory
    • NVIDIA GeForce GT 130 with 512MB of GDDR3 memory
    • ATI Radeon HD 4850 with 512MB of GDDR3 memory

    Video Support and Camera

    • Mini DisplayPort output port with support for DVI, VGA, and dual-link DVI via adapter
    • Support for extended desktop and video mirroring modes
    • Simultaneously supports full native resolution on the built-in display and up to a 30-inch display (2560 by 1600 pixels) on an external display

    Connections and Expansion

    • One FireWire 800 port; 7 watts
    • Four USB 2.0 ports
    • Mini DisplayPort output with support for DVI, VGA, and dual-link DVI (adapters sold separately)
    • 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
    • Headphone/optical digital audio output (minijack)
    • Audio line in/optical digital audio input (minijack)

  • Brand:  Apple
    Form Factor:
    Compatible CPU Brand: [[Compatible CPU Brand]]
    CPU Clock Speed: [[CPU Clock Speed]]
    CPU L2 Cache:  [[CPU L2 Cache]]
    CPU L3 Cache:  [[CPU L3 Cache]]
    Most Suitable For:  [[Most Suitable For]]
    CPU Bus Speed: [[CPU Bus Speed]]
    Number of CPU Cores: [[Number of CPU Cores]]
    CPU Bus Speed:  [[CPU Bus Speed]]

    Number of Memory Slots:  [[Number of Memory Slots]]
    Input/Output Ports:  [[Input/Output Ports]]
    Model:  24 inch iMac early 2009
    CPU Series:  [[CPU Series]]
    Socket Type:  [[Socket Type]]
    Memory Type:  [[Memory Type]]
    MPN:  820-2491-A
    Custom Bundle: 
    Expansion Slots:  [[Expansion Slots]]
  • MB420LL/A
    24 inch iMac early 2009

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