Mac Pro 4.1 / 5.1 1333Mhz Ram issue

Discussion in 'Mac Pro' started by Palmaik, Nov 13, 2017.

  1. Palmaik macrumors newbie

    Palmaik

    Joined:
    Nov 13, 2017
    Location:
    London, England
    #1
    Hi guys!

    I am running an early 2009 single CPU Mac Pro 4.1, successful updated with the 5.1 firmware.
    After the installation of a 6 core Xeon with 3.46Ghz and 4 x 8GB HYNX 1333Mhz ECC Ram, everything is running fine, except one minor issue :

    The rams are only recognized as 1066Mhz instead of 1333Mhz. The funny part is, these rams are running in another (Original) Mac Pro 5.1 correctly.

    Can someone help me?

    See attached pictures 6F26D0B3-C48C-40CD-9D46-A737D7CD8520.png FDA0D23F-9AE4-4809-B9C7-6BA560EDD46A.png
     
  2. owbp macrumors 6502a

    owbp

    Joined:
    Jan 28, 2016
    Location:
    Belgrade, Serbia
  3. Palmaik thread starter macrumors newbie

    Palmaik

    Joined:
    Nov 13, 2017
    Location:
    London, England
    #3
    That works, thanks a lot ;-)
     
  4. mani girafe macrumors member

    mani girafe

    Joined:
    Aug 12, 2016
    Location:
    FRANCE
    #4
    I have an 4.1 flashed 5.1 , with 32 gb Ram,
    actually i am in 10.6.8 > go to El capitan ,but problem ..
    do you install High sierra in first step or 10.6.8 > 10.8.x > 10.9.x > 10.10 etxxx ?
    if you can help me , thanks a lot
     
  5. h9826790 macrumors G5

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #5
    Unless you boot El Capitan installer from a disc / USB thumb drive, running the El Capitan installer in 10.6.8 directly may not be allowed (10.8 may be required).
     

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4 November 13, 2017