Lagoiski

Q: 27 iMac (2012) crashes and requires smc reset to turn on

My late 2012 iMac, i7 16gig RAM 27 inches keeps shutting down. It looks like as if it was unplugged. Happens randomly. Sometimes while playing Diablo 3, surfing facebook or using iphotos or other apps. Seems to not crash if just left on overnight and not been used.

 

In order to turn it on again I have to unplug it from the power line for like 30 seconds, only then it starts.

 

I have the settings set to restart on power failure, but it does not.

 

Happened a few times a few months back. I have installed a surge protector and it worked fine for like a month or two. However last 2 days it has shut down like 10 times...

 

Help would be greatly appreciated. I suspect hardware failure.

iMac (27-inch, Late 2012), iOS 7.1.1

Posted on May 5, 2014 9:44 PM

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Q: 27 iMac (2012) crashes and requires smc reset to turn on

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  • by vanstar sydney,

    vanstar sydney vanstar sydney May 26, 2015 7:32 PM in response to smithy_dave
    Level 1 (1 points)
    May 26, 2015 7:32 PM in response to smithy_dave

    Re 2: My random crashes started with Snow Leopard. Now on 10.10.3 .. still crashes. Crashes occur mostly when using Adobe lightroom - resizing crops and tone / color control brushes. Very annoying in the middle of a project.

    Btw, My Graphics is the standard NVIDA GeForce GTX 675MX 1024 MB. Did you upgrade your card?

    Also, am considering installing CUDA as well .. a little hesitant though. Are there any dangers?

  • by smithy_dave,

    smithy_dave smithy_dave May 26, 2015 11:55 PM in response to vanstar sydney
    Level 1 (0 points)
    May 26, 2015 11:55 PM in response to vanstar sydney

    Hi Vanstar,

     

    Yeah interestingly for me too, the crashes mostly happened when Dreamweaver and Illustrator are open - however using those programs the majority of the time could mean its mere coincidence.

     

    Yeah I upgrade my mac at point of sale.

     

    As far as CUDA is concerned I'm not going to pretend I know for sure, as everything I've learned so far has been in desperation, reports in various forums show that for some it settled crashes and others it actually makes them worse - But looking at Adobe forums its one of the first things they suggest to try. CUDA runs like an app, so if it does make things worse it can be removed pretty easily. - But please do you own research on it first.

  • by zannetos,

    zannetos zannetos May 27, 2015 8:43 PM in response to Lagoiski
    Level 1 (0 points)
    May 27, 2015 8:43 PM in response to Lagoiski

    I have exactly the same problem 27 inch iMac late 2012. Apple should do something!

  • by rhalvo,

    rhalvo rhalvo May 28, 2015 2:26 PM in response to Lagoiski
    Level 1 (0 points)
    May 28, 2015 2:26 PM in response to Lagoiski

    Count me in as one more. Same late 2012, i7, 27" iMac.

     

    About three months ago it started shutting down at random. After a shutdown, like others, it requires unplugging before it will reboot. I cannot associate the shutdowns with any software or activity, it's completely random as far as I can tell.

     

    I took it in to the Apple Store and they kept it for about 9 or 10 days. They tell me they did all the tests but could find nothing. They finally reinstalled the OS (I'm still using Mavericks BTW) and sent me home with it. No luck, still shutting down without warning.

     

    Wish I could offer some insight. Just another person stuck with a computer that may or may not work from one moment to the next.

  • by vanstar sydney,

    vanstar sydney vanstar sydney May 28, 2015 2:58 PM in response to rhalvo
    Level 1 (1 points)
    May 28, 2015 2:58 PM in response to rhalvo

    Right! What can be done to notify Apple Inc?

    Can anyone offer those affected with the random shutdown syndrome a path with which to alert Apple?

  • by fatcat585,

    fatcat585 fatcat585 May 28, 2015 4:09 PM in response to vanstar sydney
    Level 1 (4 points)
    May 28, 2015 4:09 PM in response to vanstar sydney

    i'm having the same issue as well.

  • by be_creative,

    be_creative be_creative Jun 5, 2015 10:32 AM in response to vanstar sydney
    Level 1 (0 points)
    Jun 5, 2015 10:32 AM in response to vanstar sydney

    I am also having the same frustrating random black outs that require unplugging to restart.

     

    I am still running Mountain Lion (10.8.5) and have only the original 8GB RAM.

    iMac 27in Late 2012

    3.4 GHz i7

     

    Power supply sounded logical, but after reading that some have the same issue after replacing it and reading all the different remedies and repairs - I don't know what to think. I wish Apple would chime in with some help or answers.

  • by TerziniG,

    TerziniG TerziniG Jun 5, 2015 11:47 AM in response to Lagoiski
    Level 1 (0 points)
    Jun 5, 2015 11:47 AM in response to Lagoiski

    Hi guys i'm having the same problems since last 3 days.

    My iMac shut down with no apparently reason at random.

     

    iMac

    27-inch, Late 2012

     

    3.4 GHz Intel Core i7

    16 Go 1600 MHz DDR3

    NVIDIA GeForce GTX 680MX 2048 Mo

     

    I install iStat to check the performance. Don't know if it's normal but my temps of my GPU Diode is near 50°c without activity and can reach till more than 70°c with graphics softwares. Maybe this could be the reason : overheating and then shutdown to prevent any damage?

     

    Did someone have an answer to this problem? I read all the comments above however nobody seems to have the solution.

  • by webdanger,

    webdanger webdanger Jun 10, 2015 11:41 AM in response to TerziniG
    Level 1 (4 points)
    Desktops
    Jun 10, 2015 11:41 AM in response to TerziniG

    I have the same iMac and the same problem. Mine was fine until I installed a bad RAM, since then I have problems with my iMac shutting down when it goes to sleep or having troubles powering on without the SMC reset. Mine requires several minutes unplugged in order to start and sometimes it needs multiple tries.

     

    Its currently in a service at an Apple reseller in my country. I will come back and let you know their diagnostic and what needs to be done. The thing that worries me s that one guy here had the logic board replaced twice and the power supply once and it still does it!!!

     

    If fixing whatever the repair shop tells me doesn't solve it I will go at an apple store in italy for them to fix it.

     

    However it goes I will be back and let you guys know. Make sure everyone comes back and updates this thread if they solved the issue.

  • by Frederick Karayan,

    Frederick Karayan Frederick Karayan Jun 10, 2015 1:10 PM in response to Lagoiski
    Level 1 (5 points)
    Jun 10, 2015 1:10 PM in response to Lagoiski

    An update to my previous post:

    I am fortunate that I purchased AppleCare. The Senior Advisor I have been working with had me collect system log data that has been forwarded to Engineering. The Senior Advisor has been committed to working with me on this issue. I will update again when I have something new.

  • by webdanger,

    webdanger webdanger Jun 13, 2015 2:42 PM in response to webdanger
    Level 1 (4 points)
    Desktops
    Jun 13, 2015 2:42 PM in response to webdanger

    Mine got back from the service provider and passed all tests, they said that unplugging and replugging 10 times worked and my iMac is not shutting down while on sleep. I am absolutely positive its a RAM issue. I had this problem while combining other OEM ram with my original ones, after a lot of testing I developed the problem. After I reinstalled the original ram that came with my mac, 8gb, it seems to work again. I think ram slots count as well, I mean you should left the ram in the slots it came in. Very strange behavior, I will test it further more and report.

  • by poikkeus1,

    poikkeus1 poikkeus1 Jun 13, 2015 2:50 PM in response to iForce_
    Level 4 (1,532 points)
    Wireless
    Jun 13, 2015 2:50 PM in response to iForce_

    I can at least address iForce's question; it might be best to post in separate threads to get your individual questions answered with the care they deserve.

     

    In the meantime, do an Entrecheck run and post your results in this thread. If you don't have Entrecheck, you can download it free here:

     

    http://www.etresoft.com/etrecheck

  • by smithy_dave,

    smithy_dave smithy_dave Jun 24, 2015 12:10 AM in response to Lagoiski
    Level 1 (0 points)
    Jun 24, 2015 12:10 AM in response to Lagoiski

    Just a small update for everyone... Since installing CUDA and the recent Apple OS updates I've not had any shutdowns for about the last 2 weeks. I hope the same is true for everyone else with this problem.

  • by vanstar sydney,

    vanstar sydney vanstar sydney Jun 26, 2015 4:25 PM in response to smithy_dave
    Level 1 (1 points)
    Jun 26, 2015 4:25 PM in response to smithy_dave

    Sounds interesting, but I have no command line experience

    Here's the link and the NVIDIA GeForce GTX 675MX (iMac late 2012 i7) seems to be supported - link:

    http://docs.nvidia.com/cuda/cuda-getting-started-guide-for-mac-os-x/

    If anyone has or knows of a simplified step by step guide for the uninitiated that would be helpful.

  • by cessnapilt172,

    cessnapilt172 cessnapilt172 Jul 18, 2015 4:24 PM in response to vanstar sydney
    Level 1 (0 points)
    Jul 18, 2015 4:24 PM in response to vanstar sydney

    Same issue here; random shutdown without warning. No rhyme or reason.

     

    late 2012 iMac 27"

    3.4 intel i7

    4GB Ram

    GTX 680

     

    Took to Genius bar. They had it for over a month. They replaced power supply, logic board $800. Took it home worked for two weeks without issue. Then started same symptoms all over again. I check the logs, nothing. Run the Apple hardware test, no errors. tested the ram with Rember, no errors, & run EtreCheck, nothing stands out as to the cause of this issue. Sometimes I'll be browsing with chrome or safari..shuts down. Sometimes, it shuts down while booting up!  Unplug it for 15 seconds, do nothing for 10 more seconds, power on.

    Really at my wits end with this iMac, this is likely my last. Really annoyed, considering I basically  paid 1/3 of a new iMac to "fix" it...

    Here is the Etrecheck below:

     

    EtreCheck version: 2.2 (132)

    Report generated 7/18/15, 3:09 PM

    Download EtreCheck from http://etresoft.com/etrecheck

     

    Click the [Click for support] links for help with non-Apple products.

    Click the [Click for details] links for more information about that line.

     

    Hardware Information: ℹ️

        iMac (27-inch, Late 2012) (Technical Specifications)

        iMac - model: iMac13,2

        1 3.4 GHz Intel Core i7 CPU: 4-core

        4 GB RAM Upgradeable

            BANK 0/DIMM0

                2 GB DDR3 1333 MHz ok

            BANK 1/DIMM0

                2 GB DDR3 1333 MHz ok

            BANK 0/DIMM1

                Empty 

            BANK 1/DIMM1

                Empty 

        Bluetooth: Good - Handoff/Airdrop2 supported

        Wireless:  en1: 802.11 a/b/g/n

     

    Video Information: ℹ️

        NVIDIA GeForce GTX 680MX - VRAM: 2048 MB

            iMac 2560 x 1440

     

    System Software: ℹ️

        OS X 10.10.4 (14E46) - Time since boot: 0:3:15

     

    Disk Information: ℹ️

        APPLE HDD WDC WD10EALX-408EA0 disk0 : (1 TB)

            EFI (disk0s1) <not mounted> : 210 MB

            Macintosh HD (disk0s2) / : 999.35 GB (699.76 GB free)

            Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB

     

    USB Information: ℹ️

        Apple Inc. FaceTime HD Camera (Built-in)

        Apple Inc. BRCM20702 Hub

            Apple Inc. Bluetooth USB Host Controller

     

    Thunderbolt Information: ℹ️

        Apple Inc. thunderbolt_bus

     

    Gatekeeper: ℹ️

        Mac App Store and identified developers

     

    Kernel Extensions: ℹ️

            /Applications/Parallels Desktop.app

        [not loaded]    com.parallels.kext.hypervisor (10.2.1 29006 - SDK 10.7) [Click for support]

        [not loaded]    com.parallels.kext.netbridge (10.2.1 29006 - SDK 10.7) [Click for support]

        [not loaded]    com.parallels.kext.usbconnect (10.2.1 29006 - SDK 10.7) [Click for support]

        [not loaded]    com.parallels.kext.vnic (10.2.1 29006 - SDK 10.7) [Click for support]

     

            /System/Library/Extensions

        [loaded]    com.avira.kext.FileAccessControl (1.0.0d1 - SDK 10.9) [Click for support]

        [loaded]    com.nvidia.CUDA (1.1.0) [Click for support]

     

    Launch Agents: ℹ️

        [loaded]    com.avira.antivirus.general.agent.plist [Click for support]

        [loaded]    com.avira.antivirus.ipm.ui.plist [Click for support]

        [loaded]    com.avira.antivirus.notifications.agent.plist [Click for support]

        [loaded]    com.avira.antivirus.odscan.default.plist [Click for support]

        [loaded]    com.avira.antivirus.scheduler.agent.plist [Click for support]

        [running]    com.avira.antivirus.systray.plist [Click for support]

        [loaded]    com.avira.antivirus.telemetry.agent.plist [Click for support]

        [loaded]    com.avira.antivirus.update.default.plist [Click for support]

        [running]    com.avira.helper.avstats.plist [Click for support]

        [loaded]    com.nvidia.CUDASoftwareUpdate.plist [Click for support]

     

    Launch Daemons: ℹ️

        [running]    com.adobe.ARM.[...].plist [Click for support]

        [loaded]    com.adobe.fpsaud.plist [Click for support]

        [loaded]    com.avira.antivirus.dbcleaner.plist [Click for support]

        [failed]    com.avira.antivirus.ipm.loader.plist [Click for support]

        [running]    com.avira.helper.watchdox.plist [Click for support]

        [loaded]    com.nvidia.cuda.launcher.plist [Click for support]

     

    User Launch Agents: ℹ️

        [loaded]    com.adobe.ARM.[...].plist [Click for support]

        [loaded]    com.google.keystone.agent.plist [Click for support]

        [loaded]    com.valvesoftware.steamclean.plist [Click for support]

     

    User Login Items: ℹ️

        Steam    Application  (/Applications/Steam.app)

        iTunesHelper    Application  (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

        Degrees    UNKNOWN  (missing value)

        AdobeResourceSynchronizer    Application Hidden (/Applications/Adobe Reader.app/Contents/Support/AdobeResourceSynchronizer.app)

     

    Internet Plug-ins: ℹ️

        FlashPlayer-10.6: Version: 18.0.0.209 - SDK 10.6 [Click for support]

        QuickTime Plugin: Version: 7.7.3

        AdobePDFViewerNPAPI: Version: 11.0.12 - SDK 10.6 [Click for support]

        AdobePDFViewer: Version: 11.0.12 - SDK 10.6 [Click for support]

        Flash Player: Version: 18.0.0.209 - SDK 10.6 [Click for support]

        Default Browser: Version: 600 - SDK 10.10

        F5 SSL VPN Plugin: Version: 7070.2012.1026.1 [Click for support]

     

    Safari Extensions: ℹ️

        Open in Internet Explorer

     

    3rd Party Preference Panes: ℹ️

        CUDA Preferences  [Click for support]

        Flash Player  [Click for support]

     

    Time Machine: ℹ️

        Skip System Files: NO

        Mobile backups: OFF

        Auto backup: NO - Auto backup turned off

        Volumes being backed up:

            Macintosh HD: Disk size: 999.35 GB Disk used: 299.58 GB

        Destinations:

            Time Capsule [Network]

            Total size: 2.00 TB

            Total number of backups: 66

            Oldest backup: 2013-05-30 07:35:04 +0000

            Last backup: 2015-06-20 03:42:00 +0000

            Size of backup disk: Adequate

                Backup size 2.00 TB > (Disk used 299.58 GB X 3)

     

    Top Processes by CPU: ℹ️

            44%    mdworker(2)

             2%    WindowServer

             2%    fontd

             0%    steam_osx(2)

             0%    savapi

     

    Top Processes by Memory: ℹ️

        497 MB    kernel_task

        340 MB    savapi

        315 MB    avguard.bin

        90 MB    steam_osx(2)

        74 MB    ocspd

     

    Virtual Memory Information: ℹ️

        548 MB    Free RAM

        3.46 GB    Used RAM

        0 B    Swap Used

     

    Diagnostics Information: ℹ️

        Jul 18, 2015, 03:04:41 PM    Self test - passed

        Jul 18, 2015, 02:17:06 PM    /Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2015-07-18-141706_[ redacted].hang

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