HT201364 Cannot upgrade my mid 2011 iMac 21.5 inch from Lion OS X 10.7.5 to Mavericks.

After accessing Mavericks upgrade page in the App store, signing in using my Apple ID and clicking "install," nothing happens.

solocyclist,
Mavericks is a download of over 5 GB — have you given it enough time to download?

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

  • WiFi Turns Off On My Mid-2011 iMac 21.5-inch Mavericks

    Hi everyone,
    This has been an off and on problem that recently became pretty much more frequent. Basically, I'll be sitting and working on my mid-2011 21.5-inch iMac running Mavericks (and Mountain Lion before it) and the WiFi will stop working. I have to turn it off and back on again. It happened so infrequently, I didn't bother with it. Since Monday, it goes off and won't come back on and I've switched to my small MacBook Air, which has no problem.
    I've tried resetting the network preferences, but it still isn't working and the WiFi turns off again. Pages don't load but it never says 'Offline.' I have a WiFi router from Comcast, a Netgear WN10000. Any help is appreciated!
    Thanks,
    Heath

    I have been having the same issue since the beginning of this week.  Very annoying to say the least.  I've also taken the same steps, as well as rebooting the router, and the problem persists.
    I have a 2013 iMac 27" running Mavericks.

  • Rattling Sound with Mid 2011 iMac 21.5 inch

    Hi There
    I basically have this rattling sound coming from my hard drive, and I am not sure what to do, or how to fix it, can someone tell me what to do? I have a 1TB HDD 7200rpm, 16GB RAM, and is insured with AppleCare.
    Thanks

    1. Backup
    2. Click on > Apple - Support - iMac 1TB Seagate Hard Drive Replacement Program and see if your iMac qualifies for this program.

  • 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.

  • 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

  • Cannot get my Samsung SyncMaster S27B370 to connect to my Mid 2011 iMac 27

    Cannot get my Samsung SyncMaster S27B370 to connect to my Mid 2011 iMac 27 inch with HDMI to thunderbolt port adapter but works like a charm in Windows 7 when I bootcamp over to it. Any ideas? The cable is working properly as shown by the fact that Windows 7 uses both monitors perfectly. I am using Mac OS X Mountain Lion and have already done the option + cmd + p + r boot reset to no avail. It does not find the second monitor at all as in it doesn't even show up in the display preference pane.

    birdmanjay wrote:
    ... Apple tells me it is the printer mfr issue and printer companies tell me it is apple issue.
    Arguably, they're both right.
    Changing your router changes everything, so your best course of action is to research the respective printer's documentation and determine how to reset them to factory default condition. Then, add them again using System Preferences > Print & Scan.
    For that, I recommend you first "reset the printing system" according to these instructions: Mac OS X: How to reset the printing system. Its instructions for Lion are identical to those for Mountain Lion.
    As the article states, it will remove all your existing printers, leaving the Mac's printing system in a similar "factory default" condition ready for you to create a new print queue for each printer, which you should probably do.
    Apple's printing support documents contain a great deal of redundancy, but this one may be a good place to start: OS X Mountain Lion: Set up a printer to print wirelessly

  • 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?

  • 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. 

  • Apple DVD player not working on Mid 2011 iMac running 10.7.2

    I have a 21.5-inch, Mid 2011 iMac which came with Lion preinstalled.  When I insert a DVD, Apple's DVD player comes up with the following error:
    "A valid video device could not be found for playback. [-70017]"
    The DVD player works.  I can play DVDs using VLC, and I can use it to burn in iDVD, but Apple's own DVD player simply will not recognize it.  I hoped this problem might be solved when I upgraded to 10.7.2, but alas it has not.
    Does anyone know how to fix or work around this issue?  This computer is used daily for my media-heavy job, so leaving it somewhere for service is not really feasible unless I'm completely unable to work on it. 

    Please read this whole message before doing anything.
    This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
    The purpose of this exercise is to determine whether the problem is localized to your user account, or is system-wide. Enable guest logins and log in as Guest. For instructions, launch the System Preferences application, select “Help” from the menu bar, and enter “Set up a guest account” (without the quotes) in the search box.
    While logged in as Guest, you won’t have access to any of your personal files or settings. Any application you run will behave as if you were running it for the first time. Don’t be alarmed by this; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.
    As Guest, launch the player and test. Same problem(s)?
    After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.

  • Unable to install Yosemite on mid 2011 iMac 27"

    OK, so I have tried to install Yosemite on this mid 2011 iMac for two days now and I get the exact same error message every time:
    An error occured when extracting files from the archive AdditionalSpeechVoices.pkg. Abort the installation and reboot.
    I have formatted the harddrive, reinstalled the original OS using the Restore via Internet option (the Mac works perfectly with Mac OS X 10.7.X) and then I try to upgrade to Yosemite via App Store and the error is back.
    Any ideas regarding what might cause this problem?
    TIA

    If you find you'll need to replace a faulty module(s) I recommend you do so from Crucial.com which has an excellent reputation for providing top quality and compatible memory modules for Macs.  They are guaranteed to work and are warranted.  Otherworldcomputing.com is another recognized, reliable source for Mac memory.

  • Is there an Update Driver for my Graphics card, AMD Radeon HD 6970M 2048 MB , in a 27inch mid 2011 iMac?  thank you!

    Is there an Update Driver for my Graphics card, AMD Radeon HD 6970M 2048 MB , in a 27inch mid 2011 iMac?  thank you!

    THank you very much, I I have a ton of Adobe programs on my mac and i think a Cuda driver update was installed with it, it just popped up the other day in my system settings and is asking to upgrade my graphics card, but i don't have the same card as this update... so i thought i would double check! thank you again.

  • 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)

  • 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

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