Previous 1 2 3 Next 79 Replies Latest reply: Nov 23, 2013 5:07 AM by LexSchellings Branched to a new discussion.
Matchless350 Level 1 (0 points)

Hi All


I am considering buying a new iMac, my old iMac is now 6 years old and getting a bit slow and clunky. It had 2GB RAM as standard and last year I upgraded to 4GB RAM, the Max it will take.  This helped initially but the machine is now getting very slow and clunky again.


I am considering a new 21.5-inch: 2.7GHz model with 8 GB of Ram as standard (2 x 4GB RAM) but I am considering ordering it with the optional 16GB RAM but can anyone tell me if the RAM in these new models can be upgraded in the future to more than 16GB and what the Max RAM would be on this new current model?


I also see that there is a forthcoming upgrade to the OS system - 'Maverick' - so, would it be worth waiting to buy a machine with Maverick already installed, or would the upgrade be easy later on if I bought a new model now?


Many thanks.



  • nbar Level 5 (6,980 points)

    The current model supports a maximum of 16 GB. Buy the machine, and subsequently upgrade your OS. there is no need to wait for software to come out in order to purchase a machine that will support it.


  • manohar.musician Level 1 (0 points)

    you cant upgrade it afterwards !!!!

    you have to decide before buying it !!!!


    you can upgrade your ram only in the 27" model !!!

  • nbar Level 5 (6,980 points)

    You can upgrade from 8 to 16 GB. 16 GB is the maximum capacity. There are two slots in the 13'' model supported a maximum of 2 x GB modules.

  • LexSchellings Level 6 (8,125 points)

    - The new iMac is not as easy to upgrade Ram, practically not possible to do it yourself.

    For now, the max is 16GB Ram. I think that when you now have 4GB and when you are not going to use new apps, that eat Ram (FCP, and th like) 16 is more than enough.

    - Another few months and it will be delivered with Maverick. Until now it was not difficult to upgrade the OS one step.

    - A difficult choice now is to decide between harddisk (500GB), Fusion Drive 1 or 2TB, SSD (500GB). The fastest is the SSD and (in my experience the best solution), the fusion drive is faster than the HDD, but different software, basically being a large buffer and a big hdd: read about that carefully.

    In the meantime: your old iMac being slow may be bettered: download Etrecheck from and post the list here.

  • Gary Scotland Level 6 (12,285 points)

    Users are unable to add extra RAM after delevery as there is no physical access to the RAM slots.

    Configurable means deciding on the amount of RAM at the time of purchase.


    Picture 2.png

  • LowLuster Level 6 (12,060 points)

    Not on the 21" model. That model is SEALED and can not be upgraded in any way, not even by Apple, after you purchase it.

    nbar wrote:


    You can upgrade from 8 to 16 GB. 16 GB is the maximum capacity. There are two slots in the 13'' model supported a maximum of 2 x GB modules.

  • Matchless350 Level 1 (0 points)

    Thanks for all the speedy and helpful replies, all very useful.


    As for what, and when to buy, I see on another website (Mac Rumours Buyers Guide) that the current iMacs on sale (release date 2012) are to be replaced with new models on 30 November 2013.  Or, is this information out of date and the current models on offer are the 'Newly' introduced models?

  • LexSchellings Level 6 (8,125 points)

    This is a rumour (as the name of the site), but it would not surprise me when it is true...

    So, do you really have the matchless 350 bike, or is it your nickname only?


  • Matchless350 Level 1 (0 points)

    Thanks for that, yes I do have a Matchles 350, a 1959 G3 Single.

  • LexSchellings Level 6 (8,125 points)

    I had one too. Deadly, but fantastic. Have fun.

  • MichelPM Level 6 (10,645 points)

    No one here has mentioned any of this, so I may as well ask as it may help with the speed of your older iMac.

    First, if your iMac IS a 2007 iMac, the max. RAM it can take is 6 GBs of RAM.

    You can replace one of the 2 GB RAM modules with a 4 Gb module from here.


    Second, how full is your iMac's hard drive?

    If your drive has below 20 GBs of free hard drive space, it maybe time to consider archiving and thinning out data from the iMac's internal drive.

    How many applications do you run simultaneously in the background while working in another application?

    When browsing the web, how many open windows or tabs do you have open at one time?

    Do you run any antivirus software on your Mac? Antivirus software can slow down the normal operation of OS X.

    Do you run any "crapware" like Mackeeper or any other type of "crapware" like so called hard drive "cleaning" apps?


    All of this can contribute to generally slowness of a Mac.

  • LexSchellings Level 6 (8,125 points)

    Good idea, as I said earlier: "In the meantime: your old iMac being slow may be bettered: download Etrecheck from and post the list here."

    The OP already has 4GB, see original post.

    When it is a software that has the brakes on, we will see it when we recieve the Etrecheck list here. Especially AV will show up. Let's wait and see what the matchless OP wants to do.

  • nbar Level 5 (6,980 points)

    How many responses do people need to give clarifying the fact that I was clearly wrong about the latest model. I know what configurable means. I was wrong. Move on. To the OP, I'm sorry if any information I gave you was misleading. Cheers.

  • Matchless350 Level 1 (0 points)

    OK, I have now run the EtreCheck as recommended and the list is very long, most of it means nothing to me, so here goes:


    Hardware Information:

              iMac (20-inch, Early 2008)

              iMac - model: iMac8,1

              1 2.4 GHz Intel Core 2 Duo CPU: 2 cores

              4 GB RAM


    Video Information:

              ATI Radeon HD 2400 - VRAM: 128 MB


    Startup Items:

              AdobeVersionCueCS2 - Path: /Library/StartupItems/AdobeVersionCueCS2


    System Software:

              Mac OS X 10.6.8 (10K549) - Uptime: 0 days 3:12:2


    Disk Information:

              ST3250820AS Q disk0 : (232.89 GB)

                        (null) (disk0s1) <not mounted>: 200 MB

                        Macintosh HD (disk0s2) /: 232.57 GB (130.52 GB free)


    USB Information:

              Apple Inc. Built-in iSight


              Apple, Inc. Keyboard Hub

                        Primax Electronics Apple Optical USB Mouse


                        Apple, Inc Apple Keyboard



              Apple Inc. BRCM2046 Hub

                        Apple Inc. Bluetooth USB Host Controller



              Apple Computer, Inc. IR Receiver



    FireWire Information:


    Thunderbolt Information:


    Kernel Extensions:


    Problem System Launch Daemons:

              [not loaded] org.samba.winbindd.plist


    Problem System Launch Agents:



    Launch Daemons:

              [loaded] com.adobe.fpsaud.plist


    Launch Agents:

              [loaded] com.kodak.BonjourAgent.plist


    User Launch Agents:

              [loaded] com.adobe.ARM.202f4087f2bbde52e3ac2df389f53a4f123223c9cc56a8fd83a6f7ae.plist


              [loaded] com.kodak.KODAK AiO Annual Opt.plist

              [loaded] com.kodak.KODAK AiO Firmware Updater.plist

              [loaded] com.kodak.KODAK AiO Software Updater.plist


    User Login Items:



              CrossOver CD Helper





    3rd Party Preference Panes:

              Adobe Version Cue CS2

              Flash Player

              Flip4Mac WMV


    Internet Plug-ins:

              Flash Player.plugin


              Flip4Mac WMV Plugin.plugin

              Google Earth Web Plug-in.plugin






              QuickTime Plugin.plugin

              RealPlayer Plugin.plugin


    User Internet Plug-ins:


    Bad Fonts:



    Top Processes by CPU:

                   5%          EtreCheck

                   2%          syslogd

                   1%          WindowServer

                   0%          Microsoft Entourage

                   0%          fontd

                   0%          Microsoft Word

                   0%          WebProcess

                   0%          System Events

                   0%          coreservicesd

                   0%          LaunchCFMApp


    Top Processes by Memory:

              172 MB             Microsoft Word

              164 MB             WebProcess

              115 MB             iTunes

              78 MB              Microsoft Entourage

              74 MB              Safari

              57 MB              WindowServer

              20 MB              Finder

              20 MB              mds

              20 MB              EtreCheck

              16 MB              SystemUIServer


    Virtual Memory Statistics

              2.43 GB            Free RAM

              897 MB             Active RAM

              425 MB             Inactive RAM

              283 MB             Wired RAM

              286 MB             Page-ins

              0 B                Page-outs


    Any ideas?

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