OSX Update 10.11.3 iMacs causes gray screen of death Mid 2011

Similar Questions

• iMac mid 2011, gray screen of death!

  Hi all! (Sorry my spelling Im Danish)

  I have an iMac mid 2011, 2 TB HD, 16 GB of Ram and a video card AMD Radeon HD 6970 M 2 GB. My problem is the gray screen of death! After starting, I see the Apple logo and progress bar. When the progress bar stops, the screen goes gray and stops loading. I tried the following.

  1. Reset the PRAM og MSC
  2. Boot in single-user mode and fsck - fy
  3. Internet starts form Apple Hardware Test - no error at all!
  4. I tried starting in safe mode, I see the logo and progress bar, but it ends with the grey screen of death
  5. Tried to start with only the original RAM
  6. Tried to start without anny perihperal eqiptment (keyboard, mouse, ect.)
  7. Tried to start mode of recovery and a USB stick and an installation DVD, I see the logo and progress bar, but it ends with the grey screen of death
  8. Tried to do an internet restotre of Apple, I see the logo and progress bar, but it ends with the grey screen of death
  9. Began the iMac in target disk mode and got access to another iMac. A ran the disc utilities and first aid, always on the go!
  10. Started the iMac in target disk mode and made a full HARD disk cloth! Make new partitions tree and a clean install of the other iMac. And after that, the iMac problem still won't start!
  11. I can boot from HARD drive of the problem (in the mode of target diks) iMac via another iMac, so I guess the drive in the iMac problem is in working condition
  12. I also assume that the screen (video card) on the iMacis problem at work order due to the fact, that I see the Apple Start logo and progressbar. As well as the Apple Hardware Test run via the Internet (no video error)

  Anny surgestions what to do? My iMac is dead?

  The very best regards Dan

  Although this program has expired may want to investigate on the iMac (27-inch): AMD Radeon 6970 M video card replacement - Apple Support program

• More recent Microsoft Update caused 'blue screen of death '. screenshots included, HELP Please!

  Hi, I am running Vista on an Acer Aspire M3641 and I had no problem since buying it there, until the other day, it's about 8 months.
  2/3 days ago I updated my computer with the latest Microsoft Update before closing down, went to my friends house, came back, the machine and my computer crashed at turn on. The blue screen of death appears literally for a second or 2:
  http://img69.imageshack.us/img69/6483/100220101146.jpg
  Then, a message called error recovery Windows appears, he gives me the possibility of either start Windows normally (which comes to restart the computer) or launch a startup repair.
  Upon the choice of startup, waiting a few minutes ago the repair, then the messege "Startup Repair cannot repair this computer automatically" and he asked then whether or not he wants me to send information about the problem or not that he won't let me not do anyway, but it allows me to open a window called the details of the problem :
  http://img28.imageshack.us/img28/4053/120220101171.jpg
  AND:
  http://img230.imageshack.us/img230/9734/120220101172.jpg
  After that I have no other choice other than to click on finish, and stop the pc.
  I also tried to tap f8 to start the computer in safe mode, but it is not as
  work, I don't know what to do, if someone could help me that would be greatly appreiciated!
  Thank you in anticipation

  If you are able to get in Mode safe mode with command prompt then try the items listed in this article.  Let us know the results. Mike - Engineer Support Microsoft Answers
  Visit our Microsoft answers feedback Forum and let us know what you think.

• White gray screen of death

  A recently obtained a Rev B G3 iMac, updated the firmware once so I could try OS9, and two days in the HARD drive made this death rattle and crashes hard

  Wonderful.

  So I order little ram from OWC (2 x 256 MB)

  A 128 GB SSD home (very disappointed because they include an adapter + SSD and it is not just a SSD IDE or made to be more integrated.)  Too expensive for what it is),

  and a new battery of LANDAU

  Repinned new fan Cooler Master 92 mm to replace the old (works perfectly)

  Starts and... gray screen.  No folder, nothing.

  Try resetting the NVRAM with Command-Option-P-R and he did once successfully, but no change in the results.

  Try Open Firmware with Command + Option + O F and it will start but the CRT remains off and the power light stays orange.

  NVRAM later tried and he won't even be deceived, forced to do other ways to become more involved.  Still no change of result

  Try holding Option at startup, nothing.  Tried holding C at the start, nothing.  Tried holding O during the boot since I heard some Macs to bring up the boot with it instead, Manager nothing.

  Tried 2 other keyboards, nothing.

  I even tried 2 other internal drives CD/DVD slim just in case I got fried somehow the original drive 24 x CD, nothing.  External hard disk is not no longer works.

  Recognizes to all readers and keyboards, powers, them and the readers try not seeking, still no results.

  going to try different hard disks and resetting the ram, replace it with the original of the ram, etc., but hoped someone had an answer for this miracle.  Hope that I didn't somehow make fried logic board or screw up somehow.

  I was hoping to keep this one close to stock (at least that I found one of these Harmoni 600 mhz cards miraculously) and a slightly less desirable another iMac G3 as my project to empty out and replace internal components with a Mac much more modern (Apple would be cool with this right?  Wouldn't a Hackintosh I think)

  If there is no operating system on the new drive, it won't start (with the exception of the optical drive with a Mac OS installation disc).  Startup Manager is accessible by pressing the Option key during the boot, not the O key. I don't remember if the iMac G3 tray-loader has Startup Manager.

  I think you've changed too much at the same time, so it is difficult to find the change that caused the problem.  Try to put the original RAM until make you it work.  Some of these original iMacs do not work with the RAM (unofficial) max of '2 x 256MB.'  Put the original optical drive, if it was working before.  If you have a standard IDE hard drive that is less than 128 GB, it would be a good idea to install it to rule out the possibility of an incompatibility with the SSD + adapter.

  What installation disk of Mac OS that you are using the optical drive to start?

  NOTE: Once you are able to boot from a Mac OS installation disc, the iMac G3 tray-loader requires the startup on the internal disk drive to be on the first 8 GB of disk space.  Due to the older IDE used in these iMacs controller, only the first 8 GB of disk space are available during the boot sequence.  After starting (when the full operating system takes over), the iMac may access up to 128 GB.  You need disks larger than 8 GB partition as the first partition is part of the first 8 GB of disk space.  A security dimension to the first partition is about 7.5 GB, with the 2nd partition using the rest of the disk space.

• Gray screen after starting mbp 2011

  My 2011 Mac book pro can't go beyond the start screen. During an attempted in safe mode, it shows the gray boot screen, with the apple bar and the State, then switches to a completely blank grey screen. I tried to reset the memory nvram and smc, but it made no difference. Right now I'm looking at a gray screen and the fan operates at a high enough rate.

  A month or so, there is no problem, I've upgraded to El Capitan. But last week, I started saw strange problems with the display screen, essentially content spiltting which should have been included to the left of two-inch screen would appear on the right side of the screen.

  I guess I have a hardware problem, but I don't know if there is anything else I can try.

  I also tried the recovery mode to try to restore from a time machine backup, but got stuck at a gray screen too.

  Any guidance would be appreciated.

  Looks almost two questions. One would be the hard drive itself. If you can even not all recovery. The disc is maybe damaged. With regard to the problem of the screen which can be a graphics card problem. If you had access to the operating system, you could install GFX CardStatus. You have another way to start, as an installation disc. For example, you can run the disc to check/repair the disk utilities. You might be able to use single user to start and run a repair. Use the S command to start and when its scrolling does. Enter fsck - fy and click on enter. If you get the system modification to rerun the command until he says OK. Then click on and enter reboot enter.

• After 10.11.6 and 5.1.7 server OSX update no. Longer can connect via screen sharing

  I did the updates using screen sharing, now, screen sharing will not work. 2 servers, both with the same problems. I can connect to other computers on the network, not only servers.

  HI, I need a new internet browser, but I can not download from any website, I have had I have mac in early 2009

  10.7.5. can you help me... Sorry for my primitive English

• Latest Skype causes Blue Screen of Death

  Whenever I have install/update Skype on windows 7 to the current version, I get a blue screen as I can't use older versions because he says "Skype cannot connect." Any help on any of these questions is accepted. Thank you.

  You have the well known problem of the Webcam HP HD [Fixed] .

  The last 6.16/6.18 Skype are causing BSOD on HP laptops with this installed webcam.

  You can try to uninstall the version 6.18 and install the previous 6.14.0.104 Skype version using the download links provided here:

  http://community.Skype.com/T5/Windows-desktop-client/ASUS-USB2-0-webcam-not-recognized-by-Skype-6-18...

  Be sure to turn off the automatic updates.

  Tools-> Options-> Advanced-> automatic updates-> turn off automatic updates

  The other option is to uninstall the HP drivers and install generic Microsoft webcam drivers.

  http://community.Skype.com/T5/Windows-desktop-client/query-about-BSOD-fix/m-p/3589407#M295633

• iMac a1225 black screen of death

  Hi all

  I have an iMac 8.1

  Model a1225

  Seems to crash randomly. I get a black screen but the backlight and the computer seems to stay on. It does it randomly. Seems to be more when the computer is first started upward. After it warms up, it seems to stay running. My first initial thought is that the video on the motherboard is bad. I was told that the computer is getting hit by a power surge. I ran a diagnosis with the diskette of starting provided with the system and all this happened. Here is the error report:

  Thu Mar 10 19:54:49 2016

  panic (cpu 0 0x9d4c97 appellant): NVRM [0 / 1:0:0]: Read Error 0x00000100: CFG 0x060910de 0 x 00100406 0xe2000000 BAR0 0xe2000000 0x5e753000 0x092480a2, D0, P3/4

  Backtrace (CPU 0), Frame: return address (4 potential args on stack)

  0x5dd33618: 0x21b837 (0x5dd7fc 0x5dd3364c 0x223ce1 0x0)

  0x5dd33668: 0x9d4c97 (0xbea22c 0xc5a840 0xbf8f88 0x0)

  0x5dd33708: 0x1737a7d (0x8e3ec04 9483004 x 0 0 x 100 0x5dd33718)

  0x5dd33748: 0xae65d4 (0 x 9483004 0 x 100 0x5dd33778 0x9c4774)

  0x5dd33778: 0x175ee9f (0 x 9483004 0 x 100 0x43cd0cee 0x5dd33788)

  0x5dd338a8: 0xb0e258 (0 9483004 x 9482004 x 0 0 x 0 0 x 0)

  0x5dd338e8: 0x9dde2b (0 9483004 x 9482004 x 0 0 x 0 0 x 0)

  0x5dd33988: 0x9da50a (0 x 0 0 x 9 0 x 0 0 x 0)

  0x5dd33b38: 0x9dc3d9 (0 x 0 0x600d600d 0x702a 0x5dd33b68)

  0x5dd33c08: 0 x 970582 (0xc1d00020 0xaa910001 0 x 20802040 0x5dd33c50)

  0x5dd33c68: 0x1372bd3 (0x8e88800 0x5dd33c9c 0 x 0 0 x 7)

  0x5dd33ca8: 0x13713bf (0x985b100 0x8e5c240 0x8f18ec0 0xd1a938)

  0x5dd33cc8: 0x137159a (0x985b100 0x8f18940 0x5dd33cf8 0xd1a1eb)

  0x5dd33cf8: 0xd1a2d4 (0x985b100 0xa7b6580 0x8f184e0 0 x 506312)

  0x5dd33d28: 0xd1a131 (0x8f16460 0x85f840 0x5dd33db8 0 x 227327)

  0x5dd33d48: 0xd25826 (0x8f16460 0x8f50200 0x5dd33d78 0xd28cf4)

  0x5dd33d78: 0xd26597 (0x8f50200 0x8f502d0 0x22a88f 0x0)

  0x5dd33dc8: 0xd27894 (0x8f50200 0xa049318 0x5dd33df8 0x232b54)

  0x5dd33de8: 0xd259f6 (0x8f50200 0x2d95284e 0x5dd33e48 0x22a568)

  0x5dd33e08: 0xd16b2b (0x8f50200 0xd1ec0c 0x5dd33e28 0x8e85400)

  0x5dd33e48: 0xd184cc (0x8e85400 0xbc053d3c 0x2a45c9 0x1f0)

  0x5dd33e88: 0xd224c1 (0x8e85400 0x5dd33f5c 0x5dd33ef8 0 x 8528140)

  0x5dd33ee8: 0xd181e6 (0x8e85400 0x5dd33f5c 0 x 1 0x506ad1)

  0x5dd33f38: 0xd17204 (0x8e85400 0x5dd33f5c 0 x 1 0x1f0)

  0x5dd33f78: 0 x 230235 (0x8e85400 0 x 0 0x5dd33fc8 0x227cea)

  0x5dd33fc8: 0x2a179c (0x863ea0 0 x 0 0 x 10 0x98303c4)

  Extensions of kernel in trace (with dependencies):

  com.apple.driver.AppleHWSensor (1.9.3d0) @0 x 1370000-> 0x1374fff

  com.apple.driver.ACPI_SMC_PlatformPlugin (4.7.0a1) @0xd1f000-> 0xd2efff

  dependency: com.apple.iokit.IOACPIFamily (1.3.0) @0 x 914000

  dependency: com.apple.iokit.IOPCIFamily (2.6.5) @0 x 928000

  dependency: com.apple.driver.IOPlatformPluginFamily (4.7.0a1) @0xd13000

  dependency: com.apple.driver.AppleSMC (3.1.0d5) @0 x 918000

  com.apple.driver.IOPlatformPluginFamily (4.7.0a1) @0xd13000-> 0xd1efff

  dependency: com.apple.iokit.IOACPIFamily (1.3.0) @0 x 914000

  com Apple.NVIDIA.nv50hal (6.3.6) @0 x 1635000-> 0x1a49fff

  dependency: com.apple.NVDAResman (6.3.6) @0x96e000

  com.apple.NVDAResman (6.3.6) @0x96e000-> 0xc5bfff

  dependency: com.apple.iokit.IOPCIFamily (2.6.5) @0 x 928000

  dependency: com.apple.iokit.IONDRVSupport 2.2.1 @0 x 961000

  dependency: com.apple.iokit.IOGraphicsFamily 2.2.1 @0x93f000

  Corresponding to the current thread BSD process name: kernel_task

  Mac OS version:

  10K 549

  Kernel version:

  10.8.0 Darwin kernel version: kills Jun 7 16:33:36 PDT 2011; root:XNU-1504.15.3~1/RELEASE_I386

  Name of system model: iMac8, 1 (Mac-F227BEC8)

  Availability of the system in nanoseconds: 2133554687258

  discharged kexts:

  com.apple.driver.AirPortBrcm43xx 423.91.27 (0xee0000 addr, size 0 x 1900544) - last unloaded 83768247490

  kexts responsible:

  5.7.2 com.paceap.kext.pacesupport.snowleopard

  com.digidesign.iokit.DigiDal 8.0.5f2

  com.apple.driver.AppleHWSensor 1.9.3d0 - last load 22814347112

  com Apple.filesystems.autofs 2.1.0

  com.apple.driver.AppleHDA 2.0.5f14

  com.apple.driver.AudioAUUC 1.57

  com.apple.driver.AppleIntelPenrynProfile 17

  com.apple.driver.ACPI_SMC_PlatformPlugin 4.7.0a1

  com.apple.driver.AppleLPC 1.5.1

  com.apple.Dont_Steal_Mac_OS_X 7.0.0

  com.apple.driver.AudioIPCDriver 1.1.6

  com.apple.driver.AppleBacklight 170.0.46

  com.apple.driver.AppleUpstreamUserClient 3.5.7

  com.apple.driver.AppleMCCSControl 1.0.20

  6.3.6 com.apple.GeForce

  com.apple.driver.AppleIRController 303,8

  com.apple.iokit.SCSITaskUserClient 2.6.8

  com.apple.BootCache 31.1

  com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

  com.apple.iokit.IOAHCIBlockStorage 1.6.4

  com.apple.iokit.AppleYukon2 3.2.1b1

  com.apple.driver.AirPortBrcm43224 428.42.4

  com.apple.driver.AppleFWOHCI 4.7.3

  2.1.7 com.apple.driver.AppleAHCIPort

  com.apple.driver.AppleIntelPIIXATA 2.5.1

  com.apple.driver.AppleUSBHub 4.2.4

  com.apple.driver.AppleUSBEHCI 4.2.4

  com.apple.driver.AppleUSBUHCI 4.2.0

  com.apple.driver.AppleEFINVRAM 1.4.0

  com.apple.driver.AppleRTC 1.3.1

  com.apple.driver.AppleHPET 1.5

  com.apple.driver.AppleACPIButtons 1.3.6

  com.apple.driver.AppleSMBIOS 1.7

  com.apple.driver.AppleACPIEC 1.3.6

  com.apple.driver.AppleAPIC 1.4

  com.apple.driver.AppleIntelCPUPowerManagementClient 142.6.0

  com Apple.Security.sandbox 1

  com Apple.Security.Quarantine 0

  com 2.1.14 Apple.NKE.applicationfirewall

  com.apple.driver.AppleIntelCPUPowerManagement 142.6.0

  com.apple.driver.DspFuncLib 2.0.5f14

  com.apple.driver.AppleProfileReadCounterAction 17

  com.apple.driver.AppleProfileTimestampAction 10

  com.apple.driver.AppleProfileThreadInfoAction 14

  com.apple.driver.AppleProfileRegisterStateAction 10

  com.apple.driver.AppleProfileKEventAction 10

  com.apple.driver.AppleProfileCallstackAction 20

  com.apple.driver.IOPlatformPluginFamily 4.7.0a1

  com.apple.iokit.IOFireWireIP 2.0.3

  com.apple.iokit.IOSurface 74.2

  com.apple.iokit.IOBluetoothSerialManager 2.4.5f3

  com.apple.iokit.IOSerialFamily 10.0.3

  com.apple.driver.AppleSMC 3.1.0d5

  com.apple.iokit.IOAudioFamily 1.8.3fc2

  com.apple.kext.OSvKernDSPLib 1.3

  com.apple.iokit.AppleProfileFamily 41

  com.apple.driver.AppleHDAController 2.0.5f14

  com.apple.iokit.IOHDAFamily 2.0.5f14

  com.apple.driver.AppleBacklightExpert 1.0.1

  com Apple.NVIDIA.nv50hal 6.3.6

  6.3.6 com.apple.NVDAResman

  com.apple.iokit.IONDRVSupport 2.2.1

  com.apple.iokit.IOGraphicsFamily 2.2.1

  com.apple.driver.BroadcomUSBBluetoothHCIController 2.4.5f3

  com.apple.driver.AppleUSBBluetoothHCIController 2.4.5f3

  com.apple.iokit.IOBluetoothFamily 2.4.5f3

  com.apple.driver.AppleUSBHIDKeyboard 141,5

  com.apple.driver.AppleHIDKeyboard 141,5

  com.apple.driver.AppleUSBHIDMouse 162

  com.apple.iokit.IOUSBHIDDriver 4.2.0

  com.apple.driver.AppleHIDMouse 162

  com.apple.driver.AppleUSBMergeNub 4.2.4

  com.apple.driver.AppleUSBComposite 3.9.0

  com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.6.8

  com.apple.iokit.IOBDStorageFamily 1.6

  com.apple.iokit.IODVDStorageFamily 1.6

  com.apple.iokit.IOCDStorageFamily 1.6.1

  com.apple.iokit.IOATAPIProtocolTransport 2.5.1

  com.apple.iokit.IOSCSIArchitectureModelFamily 2.6.8

  com.apple.driver.XsanFilter 402.1

  com.apple.iokit.IO80211Family 320.1

  com.apple.iokit.IONetworkingFamily 1.10

  com.apple.iokit.IOFireWireFamily 4.2.6

  com.apple.iokit.IOAHCIFamily 2.0.6

  com.apple.iokit.IOATAFamily 2.5.1

  com.apple.iokit.IOUSBUserClient 4.2.4

  com.apple.iokit.IOUSBFamily 4.2.4

  com.apple.driver.AppleEFIRuntime 1.4.0

  com.apple.iokit.IOHIDFamily 1.6.6

  com.apple.iokit.IOSMBusFamily 1.1

  com.apple.kext.AppleMatch 1.0.0d1

  com.apple.security.TMSafetyNet 6

  com.apple.driver.DiskImages 289.1

  com.apple.iokit.IOStorageFamily 1.6.3

  com.apple.driver.AppleACPIPlatform 1.3.6

  com.apple.iokit.IOPCIFamily 2.6.5

  com.apple.iokit.IOACPIFamily 1.3.0

  You will need to find the original installation discs and run the hardware test that came with them.

  If that does not appear no matter what, it is probable, that the RAM is the culprit.

  AppleCare sells these drives if you have lost the.

• Skype causes Blue Screen of Death after a while in a call.

  Hello, I am currently having a problem with my Skype where it will make my computer BSOD after a while in a call, it only occurs during Skype calls, not during other communications programs of voice as the voice of steam call and the blue screen is more likely to happen when I'm in Firefox.

  The blue screen error I get is "clock interrupt was not receieved a secondary processor in the time interval allowed."

  Any help would be appreciated.

  I did clean install applicable drivers and even tried to Exchange pieces of equipment (including the negotiation on an old CPU and RAM value) and no change.

  Fortunately, a solution to the problem, which has been swicthing on Google Hangouts. They work much better because there is no decrease in performance, even streaming, has more features and does not cause a blue screen after a couple of hours.

• Function key on Satellite L500 causes Blue Screen Of Death

  OK, I have a Satellite L500 and I got it in December 2009. Since I got it, if I ever press the function key the BSOD appears and the computer restarts. I put t in particular use the key function often, but it of just in case I press the wrong button and it s a nice feeling not not to have a button of computer laptop-suicide haunts my keyboard.

  Also if I decide to close the laptop completely and turn it back on at a later date, it of likely that it will be displayed as well. I have no idea as to why this is, but any help would be appreciated.

  Thank you very much
  A. Mcstea

  >... a computer laptop-suicide button...
  :)

  Do you mean the FN key?

• Installation of Powershell 2 on Windows Vista causes Blue Screen of Death

  I tried to install Powershell 2 on my Windows Vista Home Premium (with SP2) machine. I use the Windows6 package. 0-KB968930-x 86.msu. However, in the middle of the installation, I get a blue screen of death, and the computer restarts.

  I don't know if it is a help, but the problem report displayed when the machine came back to the top is as follows:

  Signature of the problem:

  Problem event name: BlueScreen

  The system version: 6.0.6002.2.2.0.768.3

  Locale ID: 2057

  More information about the problem:

  BCCode: 1000008e

  BCP1: C0000005

  BCP2: 00000000

  BCP3: 8FB3DB9C

  BCP4: 00000000

  OS version: 6_0_6002

  Service Pack: 2_0

  Product: 768_1

  Files helping to describe the problem:

  C:\Windows\Minidump\Mini073110-01.dmp

  C:\Users\Martin Lee\AppData\Local\Temp\WER-142803-0.sysdata.xml

  C:\Users\Martin Lee\AppData\Local\Temp\WER25F6.tmp.version.txt

  Hello CodeMunger,

  You can post on the Forum of Microsoft Powershell. Click here for a link to the forums.
  They may be better able to help with your questions.

  Sincerely,

  Marilyn
  Microsoft Answers Support Engineer
  Visit our Microsoft answers feedback Forum and let us know what you think

• Gray screen after update

  It gets frustrating after each update all the getting is a gray screen when the Apple appears, any suggestions

  Try running in Mode without failure.

  Boot mode safe. http://support.Apple.com/kb/PH18760

• Flash Player will not be updated, gray screen

  So, as mentioned, my flash drive will not be updated and will only display a gray screen (I also try to update FlashPlayer 18)

  I tried uninstall Flash and reinstall, but in vain.

  My Chrome Flash Player works well, but I read somewhere that it uses it's own separate flash.

  I am actually trying to update my IE and Opera would be able to use it, because Opera is my main browser and I need IE do (I think) to properly run Final Fantasy 14.

  Any help will be appreciated, I tried everything I could find but nothing has worked.

  Hi doubleradiation,

  Have you moved the file installation from one machine to the other?  If so, please try the following:

  1. Right-click on the Setup file, and then select Properties
  2. On the general tab, click the unlock button
  3. Click apply
  4. Click OK to close the window
  5. Double-click on the installer to start the installation program

  --

  Maria

• Can I set up a secondary monitor to the HD on my iMac mid 2011

  Can I set up a secondary monitor to the HD on my iMac mid-2011 with no problems. I cannot afford to upgrade to the new iMac 27-inch and wanted to update my monitor.

  Is this possible on the Mid 2011 iMac?

  Yes.

  Your best option is to choose a good monitor that has Display Port or DVI input and shy away from those who only have HDMI and VGA input.

  For a display Port monitor you will need a Mini Display Port to Display Port cable if it is not provided with the monitor.

  For a DVI monitor you will need to a Mini DisplayPort to DVI adapter and a DVI cable.

• iMac restarts after the osx update

  Hi my son has an iMac (mid-2011 Office), and there is an OSX update it will update, but then goes to a screen gray white and just sat there. I've left overnight and does not finish the installation and come back to life.

  I tried to reinstall the operating system via CMD R and I tried first aid on the hard drive.

  If I reinstall the iMac from the time machine backup recovers OK, but I can't get the updates of the OS on the machine.

  So my question is that someone has an idea what could be the cause?

  I contemplate wiping the HD and basically start again, but I have to reinstall MS Office and his Steam account

  Any advice would be welcome

  Your Modem may be loss of connection? Are you using Wifi?