Can I use DDR3 1333 Ram in a Early 2009 iMac.

Posted:
in Genius Bar edited March 2014

I have 8GB 1333 ram for a 2011 Macbook, 2011 MacMini and 2011 IMac.  

 

My question is can I put this in an early 2009 iMac, i.e. will it run at 1066.  I know I use to use PC-133 RAM in my old crt iMac that used PC-100 without any problems  

 

I bought this RAM for a Company issued Macbook Pro.  They wouldn't pay for it so when I quit, I put back in their 4GB and kept my 8GB.  Now If I can't use it in my iMac I'll have to sell it on eBay.

Comments

  • Reply 1 of 3
    MarvinMarvin Posts: 14,195moderator
    Someone did it here and it worked out fine:

    http://forums.macrumors.com/showthread.php?t=1060719
  • Reply 2 of 3
    co4ndco4nd Posts: 11member

    Didn't work for me,  I had the early 2009 iMac only two slots not four,  when I loaded the DDR3 1333 RAM and restarted I got an Alarm sound,  replaced the original ram. everything was fine.

  • Reply 3 of 3
    tallest skiltallest skil Posts: 43,399member
    Originally Posted by co4nd View Post

    Didn't work for me,  I had the early 2009 iMac only two slots not four

     

    You mean four, not eight.



    Sounds more like the RAM was bad.

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