Memory doubts... simple question but i havent been able to find an aswer

Discussion in 'Mac Basics and Help' started by Petete, Nov 10, 2008.

  1. Petete macrumors newbie

    Joined:
    Nov 10, 2008
    #1
    Hi, im new to the Forum. I hope this is the right place to ask this question. If not, i hope the moderator will move the thread to the right place, where i might get an answer.
    My question is this:
    A friend of mine who has a 2008 24" iMac, upgraded his ram memory to 4 gigs.
    He wants to sell me his original 1 gig, REALLY cheap... its practically a gift.
    But...
    I have a mid 2007 20" imac (MA877etc, i think) and im supposed to use a PC2-5300 / 667mhz ram, and the memory my friend is selling is a PC2-6400 / 800mhz.
    Can i use this memory on my 2007 imac? or will it make the system "act funny" or something? Keep in mind the i intend to keep the original 1gig (667) that came with my computer and use the new 1 gig to upgrade to 2 gigs ram.
    Will it cause stability problems to have a 667 mhz ram and a 800 mhz ram on my imac at the same time?

    thanks!
     
  2. r.j.s Moderator emeritus

    r.j.s

    Joined:
    Mar 7, 2007
    Location:
    Texas
    #2
    Dont mix memory speeds, it will cause problems. With prices they way they are, you can get 4GB really cheap on newegg.com
     

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