Maximum RAM upgrade possible on a mid 2011 iMac 27"

Can I upgrade my mid 2011 Imac 27" to 32 gb of RAM.  Apple handbook says  only possible to upgrade to 16gm (4x 4gb cards).  Has anyone upgraded a 2011 Imac 27" to 32gb of RAM?

Yes, both OWC, http://www.macsales.com and Crucial, http://www.crucial.com offer 32 GB ram kits that are guaranteed to work...to do that you would be best to not buy from sources that are not Mac specialists and who guarantee their ram to work.

Similar Messages

  • What is the maximum ram upgrade possible on a Mid 2011 iMac 21.5-inch

    I have an iMac 21.5-inch, Mid 2011 running OS X 10.9.5 which currently has 4 GB 1333 MHz DDR3 Ram. The Hard Drive has 149.87 GB free out of 499.25 GB. It has been running slow for a while now. I would like to know what is the "TRUE" maximum Ram Upgrade possible. The reason I say "TRUE" is because the specs say one things when I find others saying another. I would like to install the maximum Ram that will increase the speed to its optimum. I have read some information that this particular computer will not take advantage of anything past a certain amount of ram.
    So with all that said, I am asking for specific numbers, types of ram, suggestions etc etc...
    Thanks

    Here's what you can do and need:
    Maximum Memory
    32 GB (Actual) 16 GB (Apple)
    Memory Slots
    4 - 204-pin PC3-10600 (1333 MHz) DDR3 SO-DIMM
    Sources for memory I recommend are:
    OWC
    DataMem
    Crucial.com

  • Cannot upgrade Thunderbolt firmware on mid-2011 iMac

    Hi - I'm having problems updating the Thunderbolt firmware on my mid-2011 iMac (21.5").
    Can anyone point me to the proper location for this firmware download? I've found several on the site, but none seem to work for me, due to a variety of OS incompatibilities.
    For the curious, here's what my system says:
    Hardware Overview:
      Model Name: iMac
      Model Identifier: iMac12,1
      Processor Name: Intel Core i5
      Processor Speed: 2.7 GHz
      Number of Processors: 1
      Total Number of Cores: 4
      L2 Cache (per Core): 256 KB
      L3 Cache: 6 MB
      Memory: 12 GB
      Boot ROM Version: IM121.0047.B1F
      SMC Version (system): 1.71f22
    Thunderbolt Bus:
      Vendor Name: Apple Inc.
      Device Name: iMac
      UID: 0x0001000A15928E80
      Route String: 0
      Firmware Version: d.16 (Eng 1)
      Domain UUID: 78CF7309-6B81-CC54-A320-6D5B13722358
      Port:
      Status: No device connected
      Link Status: 0x7
      Speed: Up to 10 Gb/s x2
      Receptacle: 1
      Port Micro Firmware Version: 1.2.1
    And here are the error messages from a variety of firmware update locations:
    Thunderbolt Firmware Update v1.2
    First error: The package was signed with a certificate that has expired (c'mon Apple!)... Do you want to continue with the installation anyway? (yes!)
    Second error: Alert: This software is not supported on your system. (any reason why? OS, old other firmware, what?)
    I've tried the tricks of PRAM and SMC resets, moved the com.apple.SoftwareUpdate.plist to the desktop and rebooted, etc., etc., but nothing seems to work.
    The issue driving this exploration is that the Thunderbolt port appears to be dead - won't support Target Desktop Mode or the Thunderbolt Gigabit Ethernet adapter.
    Thanks in advance for any help!

    From that very page, it appears that this model does support Target Display Mode - please see the bold text below.
    Am I reading it incorrectly?
    Thanks for your help here - it's good to have more than 1 set of eyes looking at this!
    - Jeff
    What are the requirements for TDM?
    A Mac notebook or desktop with a Mini DisplayPort or Thunderbolt connection
    A Thunderbolt or Mini DisplayPort cable 
    A supported iMac with OS X 10.6.1 or later. The table below shows iMac computers that support TDM, the required cables, and the port of the computer to which you are connecting the iMac.
    iMac Model
    Cable Supported
    Port on Source Computer
    iMac (27-inch Late 2009)
    Mini DisplayPort to Mini DisplayPort
    Mini DisplayPort or Thunderbolt
    iMac (27-inch Mid 2010)
    Mini DisplayPort to Mini DisplayPort
    Mini DisplayPort or Thunderbolt
    iMac (Mid 2011)
    Thunderbolt to Thunderbolt
    Thunderbolt
    iMac (Mid 2012 and later)
    Thunderbolt to Thunderbolt
    Thunderbolt

  • Maximum RAM upgrade for Mac Mini mid-2010?

    Hi,
    I have a Mac Mini mid-2010 (Model 4.1).   I purchased it with 4 Gb RAM, and I am now considering a RAM upgrade. 
    I currently am running OS 10.95 - and not particularly happy with the sluggish performance that has been the hallmark of my 'upgrade' to Mavericks on this machine. I figure that increasing RAM can only help what has become a sometimes teeth-gnashingly slow computer.
    In any case, the Apple tech specs document says that the maximum RAM for this machine is 8 Gb.  However, the macmemory.com web page for this model Mac Mini says it can handle 16 Gb so long as the OS is 10.7 or greater. 
    Is this true?  Anyone tried this?
    Thanks,
    HJ

    Memory capabilities:
    Maximum Memory
    16 GB (Actual) 8 GB (Apple)
    Memory Slots
    2 - 204-pin PC3-8500 (1066 MHz) DDR3 SO-DIMM

  • IMac 8,1 2.66Ghz Core 2 Duo maximum ram upgrade possible

    I have an iMac 8,1 2.66 Ghz Core Duo, right now I have 2Gb Ram, and I am going to upgrade it. Some forums suggest that it is possible to install a 2GB and a 4GB slot to get 6Gb, and some others says it is better leave it up to 4Gb. Can someone tell me if I should go for 6 or 4GB, I obviously prefere going for 6. Thanks

    6 GBs is the max.
    Correct and reliable Mac RAM can be purchased from online Mac RAM sources Crucial memory or OWC (macsales.com).
    Here's the 6 GB RAM kit from OWC (macsales.com)
    http://eshop.macsales.com/item/Other%20World%20Computing/6400DDR2S6GP/

  • I have an 21.5 Mid 2011 iMac and i want to upgrade my RAM.  Currently I have two 2GB and two free slots.  Do I have to put in two 2GB in the free slots or can I use two 4GB or 8GB?

    I have an 21.5 Mid 2011 iMac and I want to upgrade my RAM.  Currently I have two 2GB and two free slots.  Do I have to put in two 2GB in the free slots or can I use two 4GB or 8GB?

    You can leave the existing RAM in their current slots and add compatible modules in the empty slots. For best performance, add two of teh same size. Our 2010 iMac 21" shipped with 4GB RAM---two 2GB modules in two of the four slots. I added two 2GB modules to the empty slots and now have 8 GB RAM.
    Be sure to order RAM from a trusted Mac-savvy RAM vendor. Some vendors thing a Mac is a hamburger. For over a decade I've bought all our Mac RAM (and we have 18 Macs in teh family!) from one vendor:
    http://eshop.macsales.com/shop/memory/iMac/2011/DDR3_21.5_27
    The link is to the proper RAM for your Mac.
    Crucial.com is also a trusted vendor.

  • Upgrade Mid 2011 iMac 27'' Graphics Card?

    Hello all, and thanks in advance. I have a mid 2011 iMac 27'' and for work, I do a lot of film and effects editing. I have currently ordered more RAM but my newly updated programs require an Nvidia card with CUDA drivers for rendering. Is it possible to upgrade the graphics card in my mid 2011 iMac to a newer, faster card?

    Thanks for the quick response. I understand they are part of the logic board, and it appears that they weren't designed to be easily accessible, but is it even possible? With some risky work, could it be possible to place a new card in? Or is it designed so other cards won't even fit?

  • Maximum RAM upgrade?

    What is the maximum RAM I can safely install in my 21.5 inch, Mid 2011, iMac 2.5 GHz Intel Core i5.
    I have the 2 x 2 GB that came factory installed.

    If you model is iMac11,2 then it's 16 GB.
    Screenshot from the MacTracker application.
    Go go Crucial.com and check to see what is available for your model.  Crucial is a very reputable memory supplier for Macs.
    OT

  • What is the max RAM for a mid-2011 iMac?

    MMy mid-2011 iMac shows that I can upgrade to 16mb of Ram, but I have redact that I can actually upgrade to 32mb. Which is true?

    It can take 32GB of RAM.
    (108544)

  • PC Games and peripherals on Windows 7 on Lion on mid-2011 iMac. Possible?

    Sorry for the long marquee, but I want to get anecdotal-experience answers on this convoluted subject before I waste a couple months of my fairly-rapidly-closing life --carpe diem. all y'all -- on something that's doomed from the very start.
    For reasons I can't quite fathom (relative installed population, maybe), there are very few racing sims -- none, as far as I'm concerned -- for the Mac. That's most def not true for the PC -- I've been a Mac-only user since 1989, but the PC has always been -- when working -- a pretty good gaming platform (ALL it's good for AFAIC), with tons of titles, and the ability to accomodate multi, MULTI-axis controllers, like force-feedback steering wheels with gas, brake, and clutch pedals, and gearshift. I know of nothing like that for the Mac, even if there were racing sims that would run on a Mac.
    So here's what I need to know: if I had a Boot Camp partition on my home drive (Macintosh HD), with a 32-bit or 64-bit (full version) of Windows 7 Home Premium, Windows 7 Professional, or Windows 7 Ultimate (necessary for my Mid-2011 27" iMac running Lion or above) installed on that partition, could I then install PC racing sims on that Boot Camp Windows 7-whatever Platform, and be able to use multi-axis controllers, like a Thrustmaster wheel, pedal, and shifter set?
    Please, if anyone has been able to do this, by whatever means, on a mid-2011 iMac running OS X 10.7.x or above, I'd be eternally grateful if you could share your experience.
    Thanks!
    Bart

    Seeing as how there are about 117 different versions of 64-bit Windows 7 out there, is there any particular version that is more advantageous -- in the case of Microsoft products, that means less bug-ridden -- for use on Boot Camp? I've seen reasonably priced ($66) versions like this:
    "Microsoft Windows 7 Home Premium 64-bit FULL - BRANDED"
    But then the description consists of this mangled English:
    "This product will be branded HP, Dell, etc. but will do a FULL install on any brand computer and includes a DVD and COA. This is only unique to branded? [sic -- BB] OEM Windows products and not to non branded OEM Windows products. If you are the person people always seem to ask for help when their computer isnt right you should be fine with this. If you are not that kind of user you may want to stick to a non branded oem. Once again this only applies to Mac users [really sic -- BB]."
    This is the only part of the description on this product page that even mentions "Mac users," and I'm left wondering if this "FULL - BRANDED" 64-bit version of Windows 7 will work OK on a Boot Camp partition on an OS X 10.7.x -- 10.8.x iMac.
    Knowing all too well what a rat's-nest Windows has been since it was first foisted upon an unsuspecting public in 1985, with security problems that, after nearly 30 years, have still not been addressed, I want a 64-bit version of Win 7 that's going to give me the least amount of grief on my Boot Camp partition.
    As this thread seems to be pretty much a dead letter, as many discussion threads become after an answer is provided, should I create a new question titled:
    "Which 64-bit version of Windows 7 will work best on a Boot Camp partition on an OS X 10.7.x -- 10.8.x iMac?"
    Thanks again!
    Bart

  • Where did 30GB of unused space on my SSD main drive go?  I have a mid 2011 iMac that until yesterday had just 54GB of space occupied on the primary drive.  I imported 45 minutes of video from an SD card.  Could that have used up the space?

    Where did 30GB of unused space on my SSD main drive go?  I have a mid 2011 iMac that until yesterday had just 54GB of space occupied on the primary drive.  I imported 45 minutes of video from an SD card.  Could that have used up the space?

    I added an SSD to my 27" 2011 iMac.  Although Sahidus is absolutely correct, it is much easier to add an SSD replacing the optical drive, it wasn't that bad to add it using an entirely seperate cable using SATA-III.  To me it is worth the extra hassle to install a SATA-III SSD.  This is where you are going to get maximum performance.
    Although it appears complicated, if you go slow, the procedure to install an SSD drive isn't too bad.  It takes at most 3 hours, as long as you are prepared and have all the parts and tools.
    http://www.btobey.com/learn/imac-ssd-install.php
    This describes how I did it.  Now I get awesome data performance from my iMac!
    I think the 21.5" may be more difficult to find where to place the SSD.  But im sure it is possible.  Just be creative.

  • What system did my 'Mid 2011' iMac come with?

    I have upgraded to Mountain Lion but I'm wondering if the system actually came with Lion or Snow Leopard?

    mulgravebrad wrote:
    A friend has asked if he buys the machine can he reinstall Snow Leopard on it?
    Good question. The Mid 2011 iMac can run Mac OS X Snow Leopard without any problem, but there's a problem: you need a special Snow Leopard version that it's only available on the Mac OS X DVD that Mid 2011 iMacs have got.
    If your friend tries to call Apple to try to get DVDs for a Mid 2011 iMac, Apple will ask him/her for the serial number of the iMac. As your iMac came with Lion, Apple won't send him/her the DVDs he/she needs to install Mac OS X.
    In conclusion, it's possible to install Snow Leopard, but things like a possible firmware restriction and the lack of the Snow Leopard version that your iMac needs may trun this into a very difficult task

  • Is there a way to run a external ssd with my mid 2011 iMac hdd in a raid configuration and basically have a fusion drive

    is there a way to run a external ssd with my mid 2011 iMac hdd in a raid configuration and basically have a fusion drive

    A Fusion Drive is not a RAID; it's a CoreStorage logical volume group. While it's technically possible to do as you suggest, there would be little or no benefit from it.

  • How do I migrate data from my 2003 iMac to my mid-2011 iMac?

    Hi All,
    I have a 2003 iMac and I want to migrate the iTunes, iPhoto, etc DBs to my new mid-2011 iMac.  The 2003 iMac is the last one before they switched to the intel chip.  It's Mac OS is version 10.5.4.  That's as late as I can get it as they quit supporting the old chip after that.
    I found a vid on mac-to-mac file migration online.  It said to connect the two computers via firewire cable (done), start the new computer (done), start the old computer while holding down the T-key (done), and the old computer's hard drive will show up on the new computer finder window (did happen).  Then it says to start Migration Assistant on the new computer (done), and follow directions.  That's where I run into a problem.  The Migration Assistant says "Looking for other computers" and it never finds the old iMac even though the old iMac's hard drive is visible in the new iMac's finder window.  Note that I can click down through directories on the old iMac in the new iMac's finder window.
    Any suggestions you can offer would be greatly appreciated.
    Thanks much!

    Your old machine may too old for Migration Assistant to work. In that case your best bet is to set up the old machine in Target Disk Mode and then drag and drop your files to the new machine. You should only migrate data files, if you have applications on the old machine these should be manually installed on the new machine. If any of the old machine's apps are PPC (Power PC) based these will not run in Lion and will need to be upgraded or replaced prior to installing on the new machine. You can check what apps are PPC based by opening System Profiler (Applications - Utilities - System Profiler), click Applications on the left and then look in the Kind column. Applications that will run in Lion OK are Intel & Universal apps. 

  • Using a Mid 2011 iMac as an external display.

    Hello, I was wondering if it would be possible to use my Mid 2011 iMac as a external display for a PC.
    In the interest of gaming I am looking for a new gaming PC and I would really like to use my iMac as the display because I still want to use the iMac.

    Yes, if it's a 27" model.
    Target Display Mode 2011 & Later iMacs
    iMac- How to use your iMac as a Target Display Mode display

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