Previous 1 2 Next 19 Replies Latest reply: Oct 25, 2009 5:38 AM by Steve Collister
bossanova1 Level 1 Level 1 (0 points)
I am going to buy a 21.5 inch iMac and would like to know if it's worth upgrading to 8g of RAM for $200. Or is this something I can do later and install myself and save some cash. Thank you.

Sony PCV-RX560, Windows XP
  • Glynn Level 4 Level 4 (1,375 points)
    It depends, you need to do some shopping first. Try ebay and see if there are any good deals.

    But, unless you are using many open applications the are cpu intense you may not need it. Also, if you are thinking of doing it later, wait for a couple of months and see if anyone has problems with any manufacturers. I know the old PowerBook G4 was very picky about the RAM.

    Cheers, Glynn
  • rkaufmann87 Level 8 Level 8 (47,955 points)
    Without having any idea how you intend to use the machine it's impossible for anyone to answer your question. Yes you can always upgrade later and historically it's less expensive if purchased from another vendor like OWC or Crucial. Memory is user upgradeable.

    Regards,

    Roger
  • Glynn Level 4 Level 4 (1,375 points)
    Hi I checked ebay and 4GB iMac ram is going for 89.00.
    Remember that the new iMacs have 4 slots. Two are used
    so you will just add the two 2Gigs in the others.

    http://computers.shop.ebay.com/i.html?nkw=ddr3+iMac&_sacat=80035&_trksid=p3286.m270.l1313&_odkw=ddr3&osacat=80035

    Cheers
  • frunkis54 Level 1 Level 1 (100 points)
    in the upgrade options for the new iMac it lists 4-2mg ram or 2-4mg ram. the 2 4mg costing more. is they're a performance difference between the 2?
  • Reuben Feffer Level 2 Level 2 (205 points)
    Do the 21.5-inch iMacs have the four slots necessary to take 16GB of RAM? Or do they only have two slots?
  • frunkis54 Level 1 Level 1 (100 points)
    according to the upgrade specs only the 27" imac's can be upgraded to 16gb

    Message was edited by: frunkis54
  • rkaufmann87 Level 8 Level 8 (47,955 points)
    As Frunkus54 mentioned the 21.5 can go to 8 GB of RAM max, the reason being is the case is smaller and does not have room for 4 memory slots. The 27' model because it's physically larger has the room to add 4 memory slots so you can fill it with 4 x 4 GB RAM.

    Regards,

    Roger
  • Reuben Feffer Level 2 Level 2 (205 points)
    You say the 21.5-inch iMac's case is smaller, which it is. But if you configure the 21.5-inch iMac with 8GB of RAM, Apple do it like this:

    8GB 1066MHz DDR3 SDRAM - 4x2GB

    See? "4x", 4 times. So that implies that the 21.5-inch iMac really does have 4 RAM slots. What's stopping you from putting 4GB chips in each of those 4 slots in the future, to get 16GB of RAM?

    Message was edited by: Reuben Feffer

    Message was edited by: Reuben Feffer
  • Edward Boghosian Level 4 Level 4 (1,395 points)
    But is it new or used? Manufacturer? Not much of a warranty. I wouldn 't take a chance. If it were new and from a reliable seller-that is another story.
  • rkaufmann87 Level 8 Level 8 (47,955 points)
    Reuben,

    The 21.5 only has 2 RAM slots therefore only has the ability to hold 8 GB.
  • den.thed Level 7 Level 7 (24,695 points)
    Hi Roger

    Unless there is a mistake, it looks to me like the 21.5-inch also has 4 slots, but it only supports 8GB?

    Apple is listing a *8GB 1066MHz DDR3 SDRAM - 4x2GB* ram upgrade.

    see > [Configure your iMac 21.5-inch|http://store.apple.com/us/configure/MB950LL/A?mco=MTMzNzYwMDY]

    Of course I could be wrong, I haven't seen the full spec sheet or the new iMac yet.

    Dennis
  • rkaufmann87 Level 8 Level 8 (47,955 points)
    Hey Dennis,

    I think you are correct unless the specification is a misprint which I doubt. So that re-opens the questions of "could 4 x 4 GB be installed" to that I'll have to say I just don't know.

    I downloaded the manual http://manuals.info.apple.com/enUS/iMac_Late2009UG.pdf which states

    "Your iMac has four memory slots. Two are filled with at least a 2 GB memory module. You can install additional memory in the free slots or replace the memory in the filled slots with 2 GB or 4 GB memory modules, for up to 16 GB of memory."

    so it appears somewhere Apple has made a goof.

    Thanks for pointing that out, I was reading an article earlier from "http://gizmodo.com/5385841/apple-imac-hands-on" which implied the 21.5 only had 2 RAM slots. Maybe on my next trip to the Apple store I'll find out.

    Regards,
    Roger
  • den.thed Level 7 Level 7 (24,695 points)
    Duh' when all else fails look at the User's Manual, Good find....

    Message was edited by: den.thed
  • BennieBlanco Level 1 Level 1 (0 points)
    What I think everyone is failing to realize is that its possible and more likely that the 27 inch iMac is actually running a non nvidia chipset. I think that the 27 in iMac is running a different systemboard to support the quad core i5 & i7 processors. Note that nvidia and intel are in a legal dispute or the nehalem chipset. That is why the the 27 inch imacs support 16GB and the 21.5 do not.

    Just a thought, but according to other info pertaining to i7's, seems more factual.

    BB
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