Can I install 10066 MHz on the new iMac?

Discussion in 'iMac' started by BabakN, Jun 28, 2008.

  1. BabakN Guest

    #1
    I'm getting ready to buy an iMac 24" 2.8 GHz, but am confused about what speed RAM upgrade to get.

    The specs say that the processor has a 1066 MHz Front Side Bus, but the memory that's installed on the machine is only 800 MHz. Not sure why they do that!

    My question is, can I buy third party memory that's faster than 800 MHz and safely run in on this machine?

    Thanks,
    Bobby
     
  2. barnettebw macrumors newbie

    Joined:
    Mar 20, 2008
    #2
    nope

    Unfortunately the iMac, as do all other Macs (exlcuding the Mac Mini, which still runs 667 MHz RAM I believe) run 800 MHz RAM.

    The Frontside Bus of 1066 MHz does not imply that 1066 MHz RAM can be used. The connection between RAM and logic board on the new iMac bottlenecks at 800 MHz.

    The faster Frontside Bus is instead used in conjunction with other system components (i.e., I/O, really speedy hard drives, etc.).
     
  3. gehrbox macrumors 65816

    gehrbox

    Joined:
    Jul 5, 2007
    Location:
    Charleston,SC
    #3
    The latest MacBook Pro's (early 2008) still use PC2-5300 (667MHz). Ditto for the MacBook and MacBook Air.

    Read the following info to gain a better understanding of how DDR2 memory and the FSB speeds integrate.

    http://en.wikipedia.org/wiki/Front_side_bus
    http://en.wikipedia.org/wiki/Double_Data_Rate
    http://en.wikipedia.org/wiki/DDR2
    http://en.wikipedia.org/wiki/Memory_divider
    http://guides.macrumors.com/Understanding_Intel_Mac_RAM
     
  4. iSpoody 1243 macrumors 6502

    Joined:
    Jun 29, 2008
    Location:
    Australia
    #4
    lololol

    10066 mhz ram!!!!
    wow where can i find some?
     
  5. nando2323 macrumors 6502a

    Joined:
    Aug 15, 2007
    #5
  6. BabakN thread starter Guest

    #6
    Thanks!

    Thanks for the education! Makes sense.

    And yes, the 10066 MHz typo is a good one!
     

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