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Problem with F3-1333C9D-8GSL RAM kit in Intel-based iMac

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  • Problem with F3-1333C9D-8GSL RAM kit in Intel-based iMac

    Hello,

    I bought a F3-1333C9D-8GSL 8 GB memory kit (2 x 4GB DDR3 SO-DIMM).
    http://www.gskill.com/en/product/f3-1333c9d-8gsl

    I installed this memory in my mother's iMac (the 21.5-inch, Mid 2010 model)
    Model ID iMac11,2
    https://support.apple.com/en-us/HT201191#2
    https://en.wikipedia.org/wiki/IMac_%...9#Unibody_iMac

    With the new RAM installed, the computer randomly crashes after random times (sometimes during boot, sometimes after using the computer for a few hours).

    Sometimes, I just get a crash in an application; sometimes, the whole OS panics and reboots.

    Removing the new RAM restores the system's stability.

    All the signs point at a faulty RAM module, or some compatibility issue.

    Have other people tried using F3-1333C9D-8GSL kit in a 2010 iMac?

    I have an Asus laptop that uses DDR3 SO-DIMM, so I can try running memtest86+ on the laptop to determine which module is faulty.

    I'd like to hear what you think?

    Regards.

  • #2
    That RAM is not compatible, you need this:

    FA-8500CL7D-8GBSQ

    Comment


    • #3
      Hello GSKILL TECH,

      You say F3-1333C9D-8GSL is not compatible with Mid 2010 iMac (Model ID iMac11,2)
      And you then suggest a slower memory kit
      http://www.gskill.com/en/product/fa-8500cl7d-8gbsq

      But the Mid 2010 iMac requires:
      PC3-10600 Unbuffered Nonparity 204-pin 1333MHz DDR3 SDRAM

      while the memory you suggest only runs at 1066 MHz.

      Can you explain why the F3-1333C9D-8GSL is incompatible?
      Is it not PC3-10600 Unbuffered Nonparity 204-pin 1333MHz DDR3 SDRAM?

      I haven't had time to test the memory in the Asus laptop, but I am half expecting one of the modules to be faulty.

      Regards.

      Comment


      • #4
        With the latest EFI, DDR3-1333 should be fine.

        FA-10666CL9D-8GBSQ

        The 8GSL uses IC chips that may not be compatible with iMac

        If you already have the RAM, give it a try.

        Comment

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