Macbook Pro random shutdowns/kernel panics/system beeps, please help

Question

Level 1

13 points

Macbook Pro random shutdowns/kernel panics/system beeps, please help

My Macbook Pro has been having random shutdowns with increasing frequency over the past few weeks.

These shutdowns began with what appeared to be a sleep issue. When the lid was shut, the computer would not properly enter sleep mode, would get quite hot, and would shutdown with the series of 3 system beeps which may apparently be indicative of a RAM issue. I dealt with this by ensuring that I manually put the computer to sleep before shutting the screen, and things were fine for a while.

Shutdowns began occurring again, more frequently when I was using the laptop on my lap, and I figured that perhaps pressure on the bottom of the case had dislodged the RAM. I opened the computer and re-seated the RAM, but problems have not only persisted but intensified, making me wonder if there is a logic board issue with RAM connections. As I have two months to finish my PhD, I figured I would restrict my laptop use to only flat desk surfaces so that I could eek out this machine.

Shutdowns continue, and now occur much more frequently. They come in two forms:

1. The computer hangs/freezes during normal use (occasionally, but not always heavy use like Photoshop + three or four other applications running). After the freeze, the computer screen goes blank, but discs still spin and the computer will not respond to wake-up cues. The computer either restarts itself, after which the kernel panic dialogue appears, or, more frequently, a hard re-start is needed and no crash dialogue appears on restart. Occasionally, if the OS attempts to reload windows and applications that were open at the crash, the crash often reoccurs.

2. The computer screen goes blank after a few minutes of idleness, and does not reboot. This has occurred with no other applications running, and has occurred after full reboots fresh after login. My sleep/wake settings are set so that the machine will sleep after 30 min while plugged in, so I am not sure this is simply a sleep mode issue. A hard re-start is required to regain responsiveness, and no crash dialogue appears. This occurs quite frequently now - 5-8 x/day - making the machine almost unusable for even short periods.

My machine:

Macbook Pro Mid 2010 (6,2)

OSX 10.11.6 El Capitan

Intel Core i7 2.66 Ghz duo core

4 GB memory (original memory)

memory specs:

Bank 0/DIMM0: 2 GB DDR3 1067 MHz

Status OK

Bank 1/DIMM0: 2 GB DDR3 1067 MHz

Status OK

NVIDIA GeForce GT 330M 512 MB

Troubleshooting and other information:

- I replaced my HD last summer from the original drive to a 1 TB HGST SATA, and this has been working fine.

- Disk utility reports that the disc is fine.

- The logic board was replaced in 2013 as part of the NVIDIA faulty logic board replacement program thing. The computer at that time had been experiencing screen glitches of vertical lines that eventually filled half the screen. The replacement at that time returned the machine to normal.

- early kernel panics (3-4 weeks ago) reported last kexts loaded were Avast related; I uninstalled Avast 3 weeks ago.

- I ran Memtest to check if the RAM was bad. Though I understand this won't necessarily diagnose all RAM issues, the RAM checked out ok.

System errors for my last crashes (with no kernel no report):

Aug 29 23:05:19 kernel[0] <Notice>: Previous shutdown cause: -128

Sep 4 14:31:55 kernel[0] <Notice>: Previous shutdown cause: -62

My last kernel panic report:

*** Panic Report ***

panic(cpu 0 caller 0xffffff80045ce6fa): Kernel trap at 0xffffff80048f3bd3, type 14=page fault, registers:

CR0: 0x0000000080010033, CR2: 0x000000009f7633c8, CR3: 0x000000013e6f103e, CR4: 0x00000000000226e0

RAX: 0x0000000000000000, RBX: 0x0000000000000002, RCX: 0x98473c591f1d008a, RDX: 0x0000000000000002

RSP: 0xffffff909f763398, RBP: 0x000000009f7633f8, RSI: 0xffffff909f763430, RDI: 0xffffff801c94f690

R8: 0xffffff801706a788, R9: 0xffffff909f76341a, R10: 0x0000000000002000, R11: 0x000000000000000e

R12: 0xffffff801c94f690, R13: 0x000000000000001e, R14: 0xffffff909f763430, R15: 0x0000000000000000

RFL: 0x0000000000010292, RIP: 0xffffff80048f3bd3, CS: 0x0000000000000008, SS: 0x0000000000000010

Fault CR2: 0x000000009f7633c8, Error code: 0x0000000000000002, Fault CPU: 0x0, PL: 0

Backtrace (CPU 0), Frame : Return Address

0xffffff909f763020 : 0xffffff80044dab52

0xffffff909f7630a0 : 0xffffff80045ce6fa

0xffffff909f763280 : 0xffffff80045ec563

0xffffff909f7632a0 : 0xffffff80048f3bd3

No mapping exists for frame pointer

Backtrace terminated-invalid frame pointer 0x9f7633f8

BSD process name corresponding to current thread: mds_stores

Mac OS version:

15G1004

Kernel version:

Darwin Kernel Version 15.6.0: Mon Aug 29 20:21:34 PDT 2016; root:xnu-3248.60.11~1/RELEASE_X86_64

Kernel UUID: E349749B-3303-3DDF-959C-B5885A0E1F6E

Kernel slide: 0x0000000004200000

Kernel text base: 0xffffff8004400000

__HIB text base: 0xffffff8004300000

System model name: MacBookPro6,2 (Mac-F22586C8)

System uptime in nanoseconds: 30546615685491

last loaded kext at 29557069263526: com.apple.driver.AppleXsanScheme 3 (addr 0xffffff7f8772f000, size 32768)

last unloaded kext at 29632512395376: com.apple.driver.AppleXsanScheme 3 (addr 0xffffff7f8772f000, size 32768)

loaded kexts:

com.apple.driver.AppleUSBStorageCoexistentDriver 3.7.1

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.AudioAUUC 1.70

com.apple.driver.AGPM 110.22.0

com.apple.filesystems.autofs 3.0

com.apple.iokit.IOBluetoothSerialManager 4.4.6f1

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.driver.AppleMikeyDriver 274.12

com.apple.driver.AppleUpstreamUserClient 3.6.1

com.apple.GeForceTesla 10.0.0

com.apple.driver.AppleHDA 274.12

com.apple.driver.pmtelemetry 1

com.apple.driver.AppleIntelHDGraphics 10.0.0

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.driver.AppleIntelHDGraphicsFB 10.0.0

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.4.6f1

com.apple.driver.AppleMCCSControl 1.2.13

com.apple.driver.AppleLPC 3.1

com.apple.driver.AppleSMCLMU 208

com.apple.driver.AppleMuxControl 3.12.8

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleHV 1

com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

com.apple.driver.SMCMotionSensor 3.0.4d1

com.apple.driver.AppleUSBTCButtons 245.4

com.apple.driver.AppleUSBCardReader 3.7.1

com.apple.driver.AppleUSBTCKeyboard 245.4

com.apple.driver.AppleIRController 327.6

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

com.apple.BootCache 38

com.apple.iokit.SCSITaskUserClient 3.7.7

com.apple.iokit.IOAHCIBlockStorage 2.8.5

com.apple.driver.AppleFWOHCI 5.5.4

com.apple.driver.AirPort.Brcm4331 800.20.24

com.apple.iokit.AppleBCM5701Ethernet 10.2.0

com.apple.driver.AppleAHCIPort 3.1.8

com.apple.driver.usb.AppleUSBEHCIPCI 1.0.1

com.apple.driver.AppleSmartBatteryManager 161.0.0

com.apple.driver.AppleACPIButtons 4.0

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 4.0

com.apple.driver.AppleAPIC 1.7

com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0

com.apple.nke.applicationfirewall 163

com.apple.security.quarantine 3

com.apple.security.TMSafetyNet 8

com.apple.driver.AppleIntelCPUPowerManagement 218.0.0

com.apple.iokit.IOUSBMassStorageClass 4.0.2

com.apple.AppleGraphicsDeviceControl 3.12.8

com.apple.kext.triggers 1.0

com.apple.iokit.IOSerialFamily 11

com.apple.nvidia.classic.NVDANV50HalTesla 10.0.0

com.apple.nvidia.classic.NVDAResmanTesla 10.0.0

com.apple.driver.DspFuncLib 274.12

com.apple.kext.OSvKernDSPLib 525

com.apple.iokit.IOSurface 108.2.3

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.4.6f1

com.apple.iokit.IOBluetoothFamily 4.4.6f1

com.apple.driver.AppleSMBusController 1.0.14d1

com.apple.driver.AppleHDAController 274.12

com.apple.iokit.IOHDAFamily 274.12

com.apple.iokit.IOAudioFamily 204.4

com.apple.vecLib.kext 1.2.0

com.apple.driver.AppleSMBusPCI 1.0.14d1

com.apple.iokit.IOFireWireIP 2.2.6

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.iokit.IONDRVSupport 2.4.1

com.apple.driver.AppleGraphicsControl 3.12.8

com.apple.iokit.IOGraphicsFamily 2.4.1

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.IOPlatformPluginFamily 6.0.0d7

com.apple.driver.CoreCaptureResponder 1

com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

com.apple.driver.AppleSMC 3.1.9

com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.7

com.apple.iokit.IOUSBMassStorageDriver 1.0.0

com.apple.driver.AppleUSBMultitouch 250.5

com.apple.iokit.IOUSBHIDDriver 900.4.1

com.apple.driver.usb.cdc 5.0.0

com.apple.driver.usb.networking 5.0.0

com.apple.driver.usb.AppleUSBHostCompositeDevice 1.0.1

com.apple.driver.CoreStorage 517.50.1

com.apple.driver.usb.AppleUSBHub 1.0.1

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.7

com.apple.iokit.IOBDStorageFamily 1.8

com.apple.iokit.IODVDStorageFamily 1.8

com.apple.iokit.IOCDStorageFamily 1.8

com.apple.iokit.IOAHCISerialATAPI 2.6.2

com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.7

com.apple.iokit.IOFireWireFamily 4.6.1

com.apple.iokit.IOEthernetAVBController 1.0.3b3

com.apple.iokit.IOUSBFamily 900.4.1

com.apple.iokit.IO80211Family 1110.26

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.iokit.IONetworkingFamily 3.2

com.apple.driver.corecapture 1.0.4

com.apple.iokit.IOAHCIFamily 2.8.1

com.apple.driver.usb.AppleUSBEHCI 1.0.1

com.apple.iokit.IOUSBHostFamily 1.0.1

com.apple.driver.AppleUSBHostMergeProperties 1.0.1

com.apple.driver.AppleEFINVRAM 2.0

com.apple.driver.AppleEFIRuntime 2.0

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 300.0

com.apple.kext.AppleMatch 1.0.0d1

com.apple.driver.AppleKeyStore 2

com.apple.driver.AppleMobileFileIntegrity 1.0.5

com.apple.driver.AppleCredentialManager 1.0

com.apple.driver.DiskImages 417.4

com.apple.iokit.IOStorageFamily 2.1

com.apple.iokit.IOReportFamily 31

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleACPIPlatform 4.0

com.apple.iokit.IOPCIFamily 2.9

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.Libm 1

com.apple.kec.pthread 1

com.apple.kec.corecrypto 1.0

Unable to gather system configuration information.Model: MacBookPro6,2, BootROM MBP61.0057.B11, 2 processors, Intel Core i7, 2.66 GHz, 4 GB, SMC 1.58f17

Graphics: Intel HD Graphics, Intel HD Graphics, Built-In

Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 512 MB

Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533654465238432D47372020

Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533654465238432D47372020

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.106.98.100.24)

Bluetooth: Version 4.4.6f1 17910, 3 services, 27 devices, 1 incoming serial ports

Network Service: AirPort, AirPort, en1

Serial ATA Device: HGST HTS721010A9E630, 1 TB

Serial ATA Device: MATSHITADVD-R UJ-898

USB Device: USB 2.0 Bus

USB Device: Hub

USB Device: Card Reader

USB Device: Apple Internal Keyboard / Trackpad

USB Device: BRCM2070 Hub

USB Device: Bluetooth USB Host Controller

USB Device: USB 2.0 Bus

USB Device: Hub

USB Device: My Passport 0748

USB Device: IR Receiver

USB Device: Built-in iSight

Thunderbolt Bus:

In the 2 days:

- I removed all user login applications except for Dropbox

- I reset the PRAM (twice now), shutdowns continued

- I did a SMC reset (4x), shutdowns continued

- I booted in safe mode hoping that bad system files / caches would be cleaned up. The computer did not shut down in safe mode when idle, although I cannot run necessary apps in safe mode, so have not thoroughly tested whether applications will cause shutdowns in safe mode.

- After browsing forums, I disabled "allow bluetooth devices to wake computer from sleep mode" and turned off bluetooth entirely, shutdowns continue.

- I cleared Cloudkit caches (which helped with slow loading Finder folder contents)

- I ran Apple Hardware Diagnostics from original install disc; all tests cleared OK

- Re-running disk utility from safe mode again checked out okay.

Please help! I want to be sure I exhaust all possibilities before I do a full OSX reinstallation followed by recovery from my back ups. If there is a higher likelihood that this is a hardware issue that would be great to know, since I'm far beyond my AppleCare warranty.

Thanks.

BANK 0/DIMM

~VIN,MacBook Pro (15-inch Mid 2010), OS X El Capitan (10.11.6)

Posted on Sep 4, 2016 5:47 PM

Reply

Answer 1

Sep 4, 2016 6:25 PM in response to gilyan

Beeps at startup are an indicator of "Not enough RAM is working to start up". You are thousands of times more likely to have a failure in one or both DIMMs than a problem that can be solved by re-seating.

Random kernel panics for different reasons add weight to RAM failure as a distinct possibility.

a) Make an appointment for a free evaluation at the genius bar at an Apple store.

b) replace all your memory DIMMs with new ones from a reputable, Mac-centric vendor who can tell YOU what DIMMs belong in your Mac based on the model.

Reply

Answer 2

gilyan Author

Level 1

13 points

Sep 4, 2016 6:40 PM in response to Grant Bennet-Alder

Thanks Grant. I also just used EtreCheck to see if there was anything I missed, and indeed it has indicated insufficient RAM (below). I'm thinking it might be worth purchasing 2x4 GB since it's not too expensive, and it seems Crucial might be a good option. Could it be that my applications and OS are just too memory-greedy to be running on the original 4 GB?

System Launch Agents:ⓘ

[not loaded] 7 Apple tasks

[loaded] 159 Apple tasks

[running] 59 Apple tasks

[killed] 13 Apple tasks

13 processes killed due to insufficient RAM

System Launch Daemons:ⓘ

[not loaded] 46 Apple tasks

[loaded] 160 Apple tasks

[running] 76 Apple tasks

[killed] 10 Apple tasks

10 processes killed due to insufficient RAM

Reply

Answer 3

Sep 4, 2016 7:53 PM in response to gilyan

Check your Etrecheck report again.

¿do you still have 4G of RAM showing? has some been declared "absent"?

Reply

Answer 4

gilyan Author

Level 1

13 points

Sep 4, 2016 9:38 PM in response to Grant Bennet-Alder

Hi Grant.

The Etrecheck report says that both 2 GB DIMMS are present and ok.

Here's the full report:

MacBook Pro - model: MacBookPro6,2

1 2.66 GHz Intel Core i7 CPU: 2-core

4 GB RAM Upgradeable - [Instructions]

BANK 0/DIMM0

2 GB DDR3 1067 MHz ok

BANK 1/DIMM0

2 GB DDR3 1067 MHz ok

Bluetooth: Old - Handoff/Airdrop2 not supported

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

Battery: Health = Normal - Cycle count = 625

Video Information: ⓘ

Intel HD Graphics

NVIDIA GeForce GT 330M - VRAM: 512 MB

Color LCD 1680 x 1050

System Software: ⓘ

OS X El Capitan 10.11.6 (15G1004) - Time since boot: about one hour

Disk Information: ⓘ

HGST disk0 : (1 TB) (Rotational)

EFI (disk0s1) <not mounted> : 210 MB

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

(disk1) / : 998.97 GB (368.18 GB free)

Encrypted AES-XTS Unlocked

Core Storage: disk0s2 999.35 GB Online

MATSHITADVD-R UJ-898 ()

USB Information: ⓘ

Apple Card Reader

Apple Inc. Apple Internal Keyboard / Trackpad

Apple Inc. BRCM2070 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Computer, Inc. IR Receiver

Apple Inc. Built-in iSight

Gatekeeper: ⓘ

Anywhere

Kernel Extensions: ⓘ

/System/Library/Extensions

[not loaded] com.fitbit.galileo.FitbitUSBCable (1.0 - SDK 10.10 - 2016-09-01) [Support]

Startup Items: ⓘ

KeyAccess: Path: /Library/StartupItems/KeyAccess

Startup items are obsolete in OS X Yosemite

System Launch Agents: ⓘ

[not loaded] 7 Apple tasks

[loaded] 159 Apple tasks

[running] 59 Apple tasks

[killed] 13 Apple tasks

13 processes killed due to insufficient RAM

System Launch Daemons: ⓘ

[not loaded] 46 Apple tasks

[loaded] 160 Apple tasks

[running] 76 Apple tasks

[killed] 10 Apple tasks

10 processes killed due to insufficient RAM

Launch Agents: ⓘ

[not loaded] com.adobe.AAM.Updater-1.0.plist (2016-08-30) [Support]

[failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a725c38014c95072f92651fb65e1bf9c8e43c37a2 3d420d.plist (2016-07-12) [Support]

[loaded] com.adobe.AdobeCreativeCloud.plist (2016-07-10) [Support]

[loaded] com.google.keystone.agent.plist (2016-07-11) [Support]

[loaded] com.oracle.java.Java-Updater.plist (2013-10-11) [Support]

[running] com.sassafras.KeyAccess.plist (2015-08-07) [Support]

[loaded] org.macosforge.xquartz.startx.plist (2015-10-16) [Support]

Launch Daemons: ⓘ

[loaded] com.adobe.ARMDC.Communicator.plist (2016-07-12) [Support]

[loaded] com.adobe.ARMDC.SMJobBlessHelper.plist (2016-07-12) [Support]

[loaded] com.adobe.SwitchBoard.plist (2013-04-10) [Support]

[running] com.adobe.adobeupdatedaemon.plist (2016-08-30) [Support]

[loaded] com.adobe.agsservice.plist (2015-09-26) [Support]

[failed] com.adobe.fpsaud.plist (2016-06-13) [Support]

[loaded] com.barebones.authd.plist (2013-11-22) [Support]

[running] com.fitbit.galileod.plist (2015-12-22) [Support]

[loaded] com.google.keystone.daemon.plist (2016-08-31) [Support]

[loaded] com.microsoft.office.licensing.helper.plist (2010-08-25) [Support]

[loaded] com.oracle.java.Helper-Tool.plist (2013-10-11) [Support]

[loaded] com.oracle.java.JavaUpdateHelper.plist (2015-08-20) [Support]

[running] com.sassafras.KeyAccess.plist (2009-09-14) [Support]

[not loaded] org.eyebeam.SelfControl.plist (2013-01-08) [Support]

[loaded] org.macosforge.xquartz.privileged_startx.plist (2015-10-16) [Support]

User Launch Agents: ⓘ

[loaded] com.adobe.ARM.[...].plist (2011-05-03) [Support]

[running] com.amazon.music.plist (2015-02-04) [Support]

[loaded] com.spotify.webhelper.plist (2015-10-05) [Support]

User Login Items: ⓘ

Dropbox Application (/Applications/Dropbox.app)

Internet Plug-ins: ⓘ

o1dbrowserplugin: 5.41.3.0 - SDK 10.8 (2015-12-16) [Support]

Google Earth Web Plug-in: 7.1 (2016-08-23) [Support]

Default Browser: 601 - SDK 10.11 (2016-07-26)

AdobeExManDetect: AdobeExManDetect 1.1.0.0 - SDK 10.7 (2013-04-10) [Support]

AmazonMP3DownloaderPlugin1017265: Unknown

AdobeAAMDetect: 3.0.0.0 - SDK 10.9 (2016-08-30) [Support]

AdobePDFViewerNPAPI: 15.016.20039 - SDK 10.11 (2016-05-03) [Support]

FlashPlayer-10.6: 22.0.0.192 - SDK 10.9 (2016-07-11) [Support]

Silverlight: 5.1.30514.0 - SDK 10.6 (2014-11-26) [Support]

QuickTime Plugin: 7.7.3 (2016-07-26)

AmazonMP3DownloaderPlugin: Unknown

Flash Player: 22.0.0.192 - SDK 10.9 (2016-07-11) Outdated!Update

googletalkbrowserplugin: 5.41.3.0 - SDK 10.8 (2015-12-11) [Support]

AdobePDFViewer: 15.016.20039 - SDK 10.11 (2016-05-03) [Support]

iPhotoPhotocast: 7.0 - SDK 10.8 (2013-04-21)

SharePointBrowserPlugin: 14.5.7 - SDK 10.6 (2015-10-19) [Support]

JavaAppletPlugin: Java 8 Update 51 (2016-05-05) Check version

User internet Plug-ins: ⓘ

npVidyoWeb-00073: VidyoWeb 1.1.1.00073 - SDK 10.8 (2014-12-24) [Support]

3rd Party Preference Panes: ⓘ

Flash Player (2016-06-13) [Support]

Java (2015-08-20) [Support]

KeyAccess (2015-08-01) [Support]

Time Machine: ⓘ

Mobile backups: OFF

Auto backup: YES

Volumes being backed up:

Disk size: 998.97 GB Disk used: 630.79 GB

Destinations:

Total size: 2.00 TB

Total number of backups: 14

Oldest backup: 1/3/15, 5:19 PM

Last backup: 9/4/16, 1:20 PM

Size of backup disk: Adequate

Backup size 2.00 TB > (Disk used 630.79 GB X 3)

Top Processes by CPU: ⓘ

3% WindowServer

3% kernel_task

2% mdworker(12)

1% fontd

0% galileod

Top Processes by Memory: ⓘ

469 MB kernel_task

369 MB mdworker(12)

336 MB com.apple.WebKit.WebContent(2)

106 MB Safari

94 MB Dropbox

Virtual Memory Information: ⓘ

176 MB Free RAM

3.83 GB Used RAM (711 MB Cached)

115 MB Swap Used

Diagnostics Information: ⓘ

Sep 4, 2016, 07:41:43 PM Self test - passed

Sep 4, 2016, 12:17:58 PM /Library/Logs/DiagnosticReports/Safari_2016-09-04-121758_[redacted].hang

/Applications/Safari.app/Contents/MacOS/Safari

Sep 4, 2016, 02:39:01 AM /Library/Logs/DiagnosticReports/Kernel_2016-09-04-023901_[redacted].panic

Sep 4, 2016, 02:09:27 AM /Library/Logs/DiagnosticReports/Kernel_2016-09-04-020927_[redacted].panic

Aug 27, 2016, 12:31:55 PM /Library/Logs/DiagnosticReports/Kernel_2016-08-27-123155_[redacted].panic

Aug 27, 2016, 12:21:14 PM /Library/Logs/DiagnosticReports/Kernel_2016-08-27-122114_[redacted].panic

Reply

Answer 5

kaz-k

Level 9

51,348 points

Sep 4, 2016 10:30 PM in response to gilyan

Run Apple Hardware Test(extended) if possible, also which could detects bad memory.

Reply

Answer 6

gilyan Author

Level 1

13 points

Sep 4, 2016 10:51 PM in response to kaz-k

Hi kaz-k,

I have run an Apple Hardware Test from the install disc (my machine is too old to run diagnostic tests from online recovery mode, apparently). I ran the short test (all ok) but also the extended test, which surprisingly didn't take too long and also checked out okay. Is there another way to do a more thorough recursive check via the Apple Hardware Test?

Reply

Answer 7

gilyan Author

Level 1

13 points

Sep 5, 2016 10:40 AM in response to kaz-k

I've ordered some new RAM and will post if a memory upgrade helps.

So far, limiting the number of applications runnings seems to mitigate the first crash type, but I have not yet determined if the machine still crashes while idle.

Reply

Answer 8

gilyan Author

Level 1

13 points

Sep 5, 2016 11:01 AM in response to gilyan

** EDIT **

After posting my last message my machine turned off.

There was no kernel panic recorded, the last Apple system log messages were:

Sep 5, 2016, 1:53:49 PM WindowServer[175]: Received display connect changed for display 0x3f003e

Sep 5, 2016, 1:53:49 PM WindowServer[175]: Found 1 modes for display 0x003f003e [1, 0]

Sep 5, 2016, 1:54:01 PM login[604]: USER_PROCESS: 604 ttys000

Sep 5, 2016, 1:54:13 PM Terminal[601]: BUG in libdispatch client: kevent[EVFILT_PROC] enable: "No such file or directory" - 0x2

Reply

Answer 9

gilyan Author

Level 1

13 points

Sep 5, 2016 1:54 PM in response to gilyan

II've run my 5th AHT and this one came up with an alert:

4MEM/65/40000000: 0xa4555898

Any input on this code would be greatly appreciated.

Reply

Answer 10

Sep 5, 2016 2:09 PM in response to gilyan

4MEM is a RAM memory error, which confirms that you have a serious RAM problem. Apple Hardware test does not have a reputation as the world's best -- if it finds a problem, it is a serious one!

Reply

Answer 11

gilyan Author

Level 1

13 points

Sep 5, 2016 2:14 PM in response to Grant Bennet-Alder

Hah, thanks Grant.

Does this code definitively mean it's the RAM itself and not the logic board? Im hoping that new RAM will fix my problems, which wouldn't be the case if the board is bad....

Thanks to everyone for the help. After bad experiences with Genius Bar I have been hoping to fix the issues myself.

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Answer 12

gilyan Author

Level 1

13 points

Sep 5, 2016 3:47 PM in response to Grant Bennet-Alder

I swapped the DIMMS and re-ran the AHT and got a slightly different memory error:

4MEM/66/40000000: 0xa451f898

Could this indicate that the RAM is bad rather then the port?

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Answer 13

Sep 5, 2016 4:11 PM in response to gilyan

OK, you moved the failure to a different address. That confirms, again, that the fair is in one of the DIMMs.

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Answer 14

Sep 5, 2016 4:36 PM in response to Grant Bennet-Alder

sorry, spell correction changed something resembling "failure" to "fair" above.

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Answer 15

gilyan Author

Level 1

13 points

Sep 7, 2016 6:47 PM in response to Grant Bennet-Alder

An update:

I replaced my 2x2 GB DIMMS with new 2x4 GB. At first boot, the computer gave three system beeps, so I reseated and tried again. The next boot was fine, and both in safe mode and normally. I booted to AHT and ran multiple extended analyses and all were okay.

I started to put the machine through its paces. First issue: I put the computer to sleep, and just after entering login pw upon wake the computer freezes. The screen does not go blank, but the computer is unresponsive. Holding the power button first resulted in black screen and three system beeps rather than hard restart, as well as fans running but no response. After a true hard restart, the computer booted normally.

I am testing to see if perhaps this is a port issue, so I've removed one DIMM (when the computer is screen down, which is closest to you (top) - bank 1 or 0? I will see if I can replicate the sleep wake issue.

Any thoughts and input again greatly appreciated.

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