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  1. #1

    Member Since
    Feb 15, 2011
    Changing MHz on iMac
    Hi There,

    Please could someone advise me on weather or not it possible to change the MHz on my iMac.

    I recently purchaced some memory which runs at 800mhz, the thing is when I put a 1gb memory slot, it works with the 800 MHz memory.

    Is it possible to do this or do I need to send the memory back and get the lower speed memory?

    Many Thanks.


  2. #2

    pigoo3's Avatar
    Member Since
    May 20, 2008
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    No you cannot change the mhz of your Mac.

    - Nick
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  3. #3

    Raz0rEdge's Avatar
    Member Since
    Jul 17, 2009
    27" i7 iMac, 24" iMac, 13" Macbook Air, iPhone 5 & 5S, iPod Nano 7th Gen, iPad 2 16GB WiFi, iPad 3
    The MHz on a memory is known the memory bus speed and is different than the processor speed. So, newer iMac's use the 1033 or 1667 MHz memory while the processors operates are 2.2 GHz or 2.8 GHz..

    Likewise, older iMac's use the slower memory bus speed of 800 MHz or slower. This is a feature of the logicboard that is inside the iMac and the only way that can be changed is to change the logicboard itself..

    Be sure to read the Community Guidelines | The more information you provide, the better answers you get, remember GIGO.

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