2010 iMac Memory Question

Discussion in 'iMac' started by AMango123, Nov 5, 2014.

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  1. AMango123, Nov 5, 2014

    AMango123 macrumors newbie

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    Nov 5, 2014
    #1
    Hey All- Long time forum reader here, first time poster. I just picked up an awesome 2010 iMac, 3.2 Ghz, 1TB hard drive, 4GB memory computer. I love it- but I want to put more memory in it. Its running Yosemite. Now, I found conflicting info on the internet. It says that this machine can support up to 16gb of RAM, but some say it will only use 8, even if there are 16 in there. Is this true?

    Also, this is the kit I was thinking of getting:
    http://www.crucial.com/usa/en/imac-(21*5-and-27-inch,-mid-2010)/CT3309300

    Now, if I get that 8gb kit and put it in the computers two empty slots, will that just boost my memory to 12 GB?
    Or should I get two of those and replace all the memory completely? Thanks for any advice you can give.
     
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  2. rkaufmann87, Nov 5, 2014

    rkaufmann87 macrumors 68000

    rkaufmann87

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    #2
    A 2010 iMac will support 32GB of RAM with 4 x 8GB DIMMS that are 32GB PC3-10600 1333MHZ . I recommend buying these either from Crucial or OWC (www.macsales.com) If you decide to only get 16GB then the also need to be PC3-10600 1333MHZ and again please get them from Crucial or OWC.
     
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  3. DeltaMac, Nov 5, 2014

    DeltaMac macrumors 604

    DeltaMac

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    #3
    Just a minor point - the OP has a 3.2 GHz processor, which would mean an i3 proc. AFAIK, that 2010 iMac (either 21.5 or 27-inch models) with i3 does not support any 8 GB sticks, so 4 x 4GB, total 16GB max. (still a nice amount of RAM :D )
     
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  4. AMango123, Nov 6, 2014

    AMango123 thread starter macrumors newbie

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    #4
    Awesome, thank you for the advice!
     
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