What memory to buy to upgrade 2009 iMac 27 inch

Discussion in 'iMac' started by dajl, Jul 4, 2014.

  1. dajl macrumors newbie

    Jul 4, 2014
    iMac 27 inch 2009 has 4 gig ram. Upgraded to Maverick and computer SLOW, so going to add more ram. Which brand to buy? Crucial? was going to add 2 4gig sticks to make 12 total. can i still keep my original 4 apple ram and add the new ones or must i remove the original 4 gig ram. Also, I see that there are several different options for the DDR3 from each manufacturer. How do I know which one to get? The specs seem the same, but the model number differs. i was planning on buying Crucial 8GB Kit (4GBx2) DDR3 1066 MT/s (PC3-8500) CL7 SODIMM 204-Pin Notebook Memory Modules CT2CP51264BC1067 from amazon. there is a kingston for 170ish but not sure why more expensive and it is worth the price. thanks for help!
  2. eduardrw macrumors 6502

    May 20, 2013

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