iMac 24" 2.8ghz with 2GIGS, Should I buy 2GIG more ram or 4gb?

Discussion in 'Mac Accessories' started by iMacNoob, Jul 14, 2008.

  1. iMacNoob macrumors member

    Jul 13, 2008
    I know my system can only handle 4 gb.

    but is it really better to buy 4gb so the ram is matched, instead of just buying another 2gb and then having a mixed set of ram?

    I'm planning on buying from crucial....

    oh and doesn't adding ram to an existing system sometimes make it unstable?

    at least that is how it is with PC's I think.

    I think its the macsales site that says its preferred to by 4 gb set so you don't have a mixed pair of ram.

    I guess it is worth the extra $50 then huh?
  2. CanadaRAM macrumors G5


    Oct 11, 2004
    On the Left Coast - Victoria BC Canada
    You can go either with 3 GB or 4 GB, its up to you. There's nothing inherently unstable about the 3 GB configuration, however matching RAM gets you a small (6% - 8%) performance increase due to Dual Channel memory access.

    We have a MR Guide: Mac Hardware : Understanding Intel Mac RAM
  3. iMacNoob thread starter macrumors member

    Jul 13, 2008
    Ok what exactly does matching RAM mean?

    I thought it meant buying the same set of RAM from the same manufacturer? ie. if i buy from crucial, i take out the 2gb ram that came with my iMac, and put in 2 x 2gb from crucial.

    a mixed set is if I buy 2gb from crucial and put it in my system (it is mixed as it some ram from crucial and some from apple)

    Am I wrong here? but the sounds of it mixed means when you have a 2 gb module and a 1 gb module??
  4. Indohottie macrumors 6502


    Mar 1, 2004
  5. Aifel macrumors newbie

    Jul 14, 2008
    Matching RAM typically means just matching the numbers. Although getting both pieces of RAM from the same manufacturer would help a tiny bit, it's not really an issue worth paying money for.
  6. idyll macrumors 6502

    Jun 5, 2007
    I think NewEgg has 4GB (2 x 2GB) for $76 or so? I'd say it's worth it.. and just resell the 2GB you have
  7. iMacNoob thread starter macrumors member

    Jul 13, 2008
    Ok thankfully I ran the crucial ram test, it told me I HAVE to buy 4 gb of ram because I currently have 2 x 1gb installed (there are no empty slots left, so the most I could have gotten was 2gb + 1gb if I wanted to save $).

    I bought 2 x 2gb of ram, and it arrived this morning and I just installed it. Working great so far!

    I guess I should sell my 2 x 1gb factory RAM on ebay now eh? hehe
  8. Xavier macrumors 68030

    Mar 23, 2006
    Go with the 4gb increase.

    I upgraded my laptop, and the performance increase was pretty substantial
  9. GGJstudios macrumors Westmere


    May 16, 2008
    I doubt you could get much for it on eBay, since it's what comes standard. You may want to hold onto it as a back-up, in case you ever have problems with your new RAM.
  10. iMacNoob thread starter macrumors member

    Jul 13, 2008
    yeah I think selling them will be hard, since everyone gets it by default!

    (I already bought 4gb thanks!)

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