menchyk
Level 1 (8 points)
Desktops

Q: Crashing when having more than 32GB of Ram

Ive read that you can install as much as 64GB of RAM in iMac 5k Late 2015.

 

My machine came with 16GB and I purchased 32GB (16x16) from OWC.

When I have all 48GB (8x8 & 16x16) installed my machine seems to intermittently freeze and/or crash.

 

  1. I've done an experiment where I've just used the initial 16GB
    • I did not have any crashes.
  2. To eliminate the issue of bad RAM, I then did an experiment using just the 32GB of OWC RAM
    • Again, no crashes

 

I am on my 2nd iMac 5k.  Based on what the Apple store told me (after having my computer in the shop for 2 weeks), they said my logic board, bluetooth and airport card were bad and they exchanged my computer for a new one.

 

Im now am on my replacement computer and still having the same EXACT issues.  I find it hard to believe that its the computer.  The only constant is the RAM.

 

Anyhow.. I wanted to see if anyone else was experiencing these kind of issues with RAM upgrades.

iMac (Retina 5K, 27-inch, Late 2015), OS X El Capitan (10.11.6)

Posted on Oct 17, 2016 10:57 AM

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menchyk

Q: Crashing when having more than 32GB of Ram

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  • Helpful answers

  • by rkaufmann87,

    rkaufmann87 rkaufmann87 Oct 17, 2016 12:16 PM in response to menchyk
    Level 9 (58,956 points)
    Photos for Mac
    Oct 17, 2016 12:16 PM in response to menchyk

    You seem to think the issue is hardware based while it very well could be what software you have installed. Please post an EtreCheck report of your system as your reply to this message. Click the link, download and run the app and copy and paste your report results as your reply to this message. If you want to just find out what EtreCheck is, please click the link and you will find information about it.

  • by menchyk,

    menchyk menchyk Oct 17, 2016 12:51 PM in response to rkaufmann87
    Level 1 (8 points)
    Desktops
    Oct 17, 2016 12:51 PM in response to rkaufmann87

    what a great little tool. hadn't heard of that one before, thank you for your time!

     

    this is with 32 in, I'll put in the full 48 and run this again

     

    EtreCheck version: 3.0.6 (315)

    Report generated 2016-10-17 15:40:30

    Download EtreCheck from https://etrecheck.com

    Runtime 1:55

    Performance: Excellent

     

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

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

     

    Problem: Computer is restarting

     

    Hardware Information: ⓘ

        iMac (Retina 5K, 27-inch, Late 2015)

        [Technical Specifications] - [User Guide] - [Warranty & Service]

        iMac - model: iMac17,1

        1 3.3 GHz Intel Core i5 CPU: 4-core

        32 GB RAM Upgradeable - [Instructions]

            BANK 0/DIMM0

                16 GB DDR3 1867 MHz ok

            BANK 0/DIMM1

                Empty  

            BANK 1/DIMM0

                16 GB DDR3 1867 MHz ok

            BANK 1/DIMM1

                Empty  

        Bluetooth: Good - Handoff/Airdrop2 supported

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

     

    Video Information: ⓘ

        AMD Radeon R9 M395 - VRAM: 2048 MB

            iMac 5760 x 3240

     

    System Software: ⓘ

        macOS Sierra  10.12 (16A323) - Time since boot: about 3 hours

     

    Disk Information: ⓘ

        APPLE HDD ST2000DM001 disk1 : (2 TB) (Rotational)

            EFI (disk1s1) <not mounted> : 210 MB

            Recovery HD (disk1s3) <not mounted>  [Recovery]: 650 MB

            Macintosh HD (disk2) /  [Startup]: 2.11 TB (675.18 GB free)

                Core Storage: disk0s2 120.99 GB Online

                Core Storage: disk1s2 2.00 TB Online

     

        APPLE SSD SM0128G disk0 : (121.33 GB) (Solid State - TRIM: Yes)

            EFI (disk0s1) <not mounted> : 210 MB

            Boot OS X (disk0s3) <not mounted> : 134 MB

            Macintosh HD (disk2) /  [Startup]: 2.11 TB (675.18 GB free)

                Core Storage: disk0s2 120.99 GB Online

                Core Storage: disk1s2 2.00 TB Online

     

    USB Information: ⓘ

        Broadcom Corp. Bluetooth USB Host Controller

        Apple Inc. FaceTime HD Camera (Built-in)

     

    Thunderbolt Information: ⓘ

        Apple Inc. thunderbolt_bus

     

    Gatekeeper: ⓘ

        Mac App Store and identified developers

     

    Unknown Files: ⓘ

        ~/Library/LaunchAgents/com.tunnelbear.mac.tbeara.plist

            ~/Library/Application Support/TunnelBear/com.tunnelbear.mac.tbeara

        One unknown file found. [Check files]

     

    Kernel Extensions: ⓘ

            /Applications/AceThinker Screen Grabber Pro/AceThinker Screen Grabber Pro.app

        [loaded]    com.Apowersoft.driver.AudioDevice (1.6.7 - SDK 10.11 - 2016-10-03) [Support]

        [not loaded]    com.Cycling74.driver.Soundflower (1.0.0 - SDK 10.8 - 2016-10-03) [Support]

     

            /Library/Application Support/VirtualBox

        [not loaded]    org.virtualbox.kext.VBoxDrv (5.1.6 - 2016-10-10) [Support]

        [not loaded]    org.virtualbox.kext.VBoxNetAdp (5.1.6 - 2016-10-10) [Support]

        [not loaded]    org.virtualbox.kext.VBoxNetFlt (5.1.6 - 2016-10-10) [Support]

        [not loaded]    org.virtualbox.kext.VBoxUSB (5.1.6 - 2016-10-10) [Support]

     

            /Library/Extensions

        [loaded]    com.logitech.manager.kernel.driver (6.30.1 - SDK 10.8 - 2016-10-14) [Support]

     

    System Launch Agents: ⓘ

        [not loaded]    7 Apple tasks

        [loaded]    165 Apple tasks

        [running]    99 Apple tasks

     

    System Launch Daemons: ⓘ

        [not loaded]    38 Apple tasks

        [loaded]    159 Apple tasks

        [running]    105 Apple tasks

     

    Launch Agents: ⓘ

        [loaded]    com.adobe.AdobeCreativeCloud.plist (2016-10-02) [Support]

        [running]    com.logitech.manager.daemon.plist (2016-10-02) [Support]

     

    Launch Daemons: ⓘ

        [loaded]    com.adobe.ARMDC.Communicator.plist (2016-10-02) [Support]

        [loaded]    com.adobe.ARMDC.SMJobBlessHelper.plist (2016-10-02) [Support]

        [loaded]    com.adobe.fpsaud.plist (2016-09-23) [Support]

        [loaded]    com.macpaw.CleanMyMac3.Agent.plist (2016-10-14) [Support]

        [loaded]    com.microsoft.autoupdate.helpertool.plist (2016-09-10) [Support]

        [loaded]    com.microsoft.office.licensingV2.helper.plist (2016-09-10) [Support]

        [running]    com.tunnelbear.mac.tbeard.plist (2016-10-13) [Support]

     

    User Launch Agents: ⓘ

        [not loaded]    com.google.keystone.agent.plist (2016-10-02) [Support]

        [loaded]    com.macpaw.CleanMyMac3.Scheduler.plist (2016-10-14)

        [running]    com.tunnelbear.mac.tbeara.plist (2016-10-13) [Support]

     

    User Login Items: ⓘ

        Dropbox    Application  (/Applications/Dropbox.app)

        CleanMyMac 3 Menu    Application  (/Applications/CleanMyMac 3.app/Contents/MacOS/CleanMyMac 3 Menu.app)

        HyperDock Helper    Application  (/Library/PreferencePanes/HyperDock.prefpane/Contents/Resources/HyperDock Helper.app)

     

    Internet Plug-ins: ⓘ

        AdobePDFViewerNPAPI: 15.017.20050 - SDK 10.11 (2016-10-11) [Support]

        FlashPlayer-10.6: 23.0.0.185 - SDK 10.9 (2016-10-13) [Support]

        AdobePDFViewer: 15.017.20050 - SDK 10.11 (2016-10-11) [Support]

        QuickTime Plugin: 7.7.3 (2016-09-13)

        Flash Player: 23.0.0.185 - SDK 10.9 (2016-10-13) [Support]

        AdobeAAMDetect: 3.0.0.0 - SDK 10.9 (2016-10-02) [Support]

     

    3rd Party Preference Panes: ⓘ

        Flash Player (2016-09-23) [Support]

        FUSE for macOS (2016-09-26) [Support]

        HyperDock (2016-10-11) [Support]

        Logi Options Launcher (2016-10-11) [Support]

     

    Time Machine: ⓘ

        Skip System Files: NO

        Auto backup: YES

        Volumes being backed up:

            Macintosh HD: Disk size: 2.11 TB Disk used: 1.44 TB

        Destinations:

            Backup Drive [Network]

            Total size: 3.00 TB

            Total number of backups: 31

            Oldest backup: 10/3/16, 4:08 AM

            Last backup: 10/17/16, 3:17 PM

            Size of backup disk: Too small

                Backup size 3.00 TB < (Disk used 1.44 TB X 3)

     

    Top Processes by CPU: ⓘ

             5%    WindowServer

             4%    screensharingd

             4%    kernel_task

             3%    fontd

             2%    ScreensharingAgent

     

    Top Processes by Memory: ⓘ

        3.01 GB    Google Chrome Helper(22)

        1.71 GB    kernel_task

        393 MB    Messages

        393 MB    Google Chrome

        360 MB    mds_stores

     

    Virtual Memory Information: ⓘ

        19.00 GB    Free RAM

        13.00 GB    Used RAM (14.02 GB Cached)

        0 B    Swap Used

     

    Diagnostics Information: ⓘ

        Oct 17, 2016, 01:24:29 PM    /Library/Logs/DiagnosticReports/Dropbox_2016-10-17-132429_[redacted].cpu_resour ce.diag [Details]

            /Applications/Dropbox.app/Contents/MacOS/Dropbox

        Oct 17, 2016, 12:32:06 PM    Self test - passed

        Oct 17, 2016, 10:42:44 AM    /Library/Logs/DiagnosticReports/Dropbox_2016-10-17-104244_[redacted].cpu_resour ce.diag [Details]

        Oct 15, 2016, 11:15:44 PM    /Library/Logs/DiagnosticReports/Dropbox_2016-10-15-231544_[redacted].cpu_resour ce.diag [Details]

        Oct 15, 2016, 07:18:25 PM    /Library/Logs/DiagnosticReports/Dropbox_2016-10-15-191825_[redacted].cpu_resour ce.diag [Details]

        Oct 15, 2016, 03:42:21 PM    /Library/Logs/DiagnosticReports/Dropbox_2016-10-15-154221_[redacted].cpu_resour ce.diag [Details]

        Oct 15, 2016, 03:18:58 PM    ~/Library/Logs/DiagnosticReports/node_2016-10-15-151858_[redacted].crash

            /Applications/Utilities/Adobe Creative Cloud/*/CCXProcess.app/Contents/libs/node

        Oct 15, 2016, 02:42:22 PM    /Library/Logs/DiagnosticReports/Dropbox_2016-10-15-144222_[redacted].cpu_resour ce.diag [Details]

        Oct 15, 2016, 02:28:27 PM    ~/Library/Logs/DiagnosticReports/VirtualBoxVM_2016-10-15-142827_[redacted].cras h

            org.virtualbox.app.VirtualBoxVM - /Applications/VirtualBox.app/Contents/Resources/VirtualBoxVM.app/Contents/MacOS /VirtualBoxVM

        Oct 15, 2016, 02:27:54 PM    ~/Library/Logs/DiagnosticReports/VirtualBoxVM_2016-10-15-142754_[redacted].cras h

        Oct 15, 2016, 06:06:06 AM    /Library/Logs/DiagnosticReports/VTEncoderXPCService_2016-10-15-060606_[redacted ].cpu_resource.diag [Details]

            /System/Library/Frameworks/VideoToolbox.framework/Versions/A/XPCServices/VTEnco derXPCService.xpc/Contents/MacOS/VTEncoderXPCService

        Oct 15, 2016, 05:06:14 AM    /Library/Logs/DiagnosticReports/Dropbox_2016-10-15-050614_[redacted].cpu_resour ce.diag [Details]

        Oct 14, 2016, 11:51:21 PM    /Library/Logs/DiagnosticReports/mds_2016-10-14-235121_[redacted].crash

            /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadat a.framework/Versions/A/Support/mds

        Oct 14, 2016, 02:23:22 PM    /Library/Logs/DiagnosticReports/Kernel_2016-10-14-142322_[redacted].panic [Details]

        Oct 14, 2016, 01:11:11 PM    /Library/Logs/DiagnosticReports/Kernel_2016-10-14-131111_[redacted].panic [Details]

        Oct 4, 2016, 07:12:24 PM    /Library/Logs/DiagnosticReports/Kernel_2016-10-04-191224_[redacted].panic [Details]

        Oct 3, 2016, 04:32:43 PM    /Library/Logs/DiagnosticReports/Kernel_2016-10-03-163243_[redacted].panic [Details]

        Oct 2, 2016, 02:41:33 PM    /Library/Logs/DiagnosticReports/Kernel_2016-10-02-144133_[redacted].panic [Details]

     

     

  • by JimmyCMPIT,

    JimmyCMPIT JimmyCMPIT Oct 17, 2016 1:01 PM in response to menchyk
    Level 6 (8,476 points)
    Mac OS X
    Oct 17, 2016 1:01 PM in response to menchyk

    clean my mac 3 is known scam ware and it will cause problems

    see the developers page for instructions on how to remove it.

     

    I would also remove the google app and tunnel bear to test.

     

    in addition of these 4 packages I would remove the last 3.

    3rd Party Preference Panes: ⓘ

        Flash Player (2016-09-23)

       FUSE for macOS (2016-09-26)

        HyperDock (2016-10-11)

        Logi Options Launcher (2016-10-11)

     

    and these

    Dropbox

    HyperDock Helper


    if crashes persist shut down, remove all external devices and reboot into safe mode

    Try safe mode if your Mac doesn't finish starting up - Apple Support


    if they still are happening use AHD to determine if there is a problem with one or more of the chips

    Using Apple Hardware Test - Apple Support

    and if you want a 2nd opinion

    http://www.memtest86.com


    I'm running 64GB RAM and it's very stable but my build of OS X 10.12 is very clean I and don't like to keep 3rd party junk on my system if it's just a gimmick that potentially conflicts with the OS.

  • by Old Toad,

    Old Toad Old Toad Oct 17, 2016 1:10 PM in response to menchyk
    Level 10 (141,679 points)
    Photos for Mac
    Oct 17, 2016 1:10 PM in response to menchyk

    How to Uninstall CleanMyMac 3. Knowledge Base - MacPaw

     

    OTsig.png

  • by rkaufmann87,

    rkaufmann87 rkaufmann87 Oct 17, 2016 1:23 PM in response to menchyk
    Level 9 (58,956 points)
    Photos for Mac
    Oct 17, 2016 1:23 PM in response to menchyk

    I Have to agree about CMM! Mac OS does not require any cleaning, antivirus or ANY other third party "maintenance" apps. Mac OS is incredibly secure and has all the tools it needs built into it already.