2011 iMac troubleshooting

[T'hain Esh Kelch]

I have a 2011-mid iMac, with 3,4Ghz i7, 8GB RAM, 2GB Radeon 6970M and an extra 1TB Samsung EVO 840 SSD added, which runs the OS.

The last couple of months I've been seeing some strange behavior, which I am wondering a bit about:
• The machine may crash out of nowhere. This comes in two flavors; 1. Everything freezes instantly, or 2. One app gives me the spinning wheel, then the next, then the next, and slowly they freeze so that I can't interact with them. No Kernel panic text.
• Machine reboots out of nowhere.

Upon a hard reset and reboot, most of the time everything is fine. But I have on two occasions have the following happening:
1. Machine would flash between the folder with question mark (Ie. no bootable OS) and the stop sign. Repeated reboots fixed this.
2. The machine would continuously show the folder with question mark, and then after 5 minutes change to the stop sign, and then a minute later start launching the OS as normal.

The latter tells me that it is not a faulty graphic card but likely a disk problem, ie. the SSD, but is that normal behavior for a failing SSD? I thought they just crash and burned at some point, without recovery possible.

Edit: Upon wake from sleep, the machine now always trigger apps freezing one after a time. Reboot always gives me the flashing question mark folder for 5 minutes.
Disk Utility reports that the disc needs to be repaired, but I can't boot into the recovery disk, since it never shows up when I boot while holding down the alt-button.

Any suggestions?

 

[T'hain Esh Kelch]

Update: Disk Utility stated the disk was fine, but the partition had tons of errors that couldn't be repaired. Formatted the drive, and now everything is back to normal, so it apparently wasn't a hardware problem fortunately.

 

[JohnDS]

You should check to make sure you have a recovery partition. If you don't then simply re-installing the operating system from the App Store will automatically create one.

 

[Easttime]

Question is why did that happen. My new SSD worked fine all week then tonight on waking from sleep behaved like yours and now finally only starts in recovery mode. Disk Utility says the SSD is fine but the partition with the OS, apps and data is damaged.

 

[JohnDS]

If you boot into the recovery mode, can you use Disk Utility to repair the damaged main partition?

 

[T'hain Esh Kelch]

My research showed lots of people with the same issue. Some was able to fix it by safe booting and running the -fsck y command (or something similar, just google it), but I havent reinstalled the OS since I installed the SSD 2 years ago, so I just went for the format.

 

[WorkerBee2015]

When the drive goes from a question mark, to the halt sign, to suddenly booting up after sitting there to me implies either a cable/connection problem or a supply problem. When you run fsck you're essentially doing the same thing as running a repair option on the drive using Disk Utility from either another booted partition or a recovery partition. Disk Utility is not really a repair tool for hardware but a file system tool. I would back up or clone my drive if you haven't already.

If you have a copy of Scannerz or a similar tool, put it into diagnostics mode and let it run interface tests on the unit for an hour or so. Do the same with bus/memory tests. It should not report any faults or problems at all. If it finds something in the interface tests then most likely the cable is bad or the connection isn't good. If it finds problems with the bus, then it implies either a logic board or supply problem. It shouldn't find any problems at all if everything is OK.

If it is a cable problem, which I think is the most likely, this event will re-occur. What I think is happening is that the cable once in a while is making an intermittent connection and if it occurs during reading and writing the results will be exactly as you described in your problem description. Additionally, once this occurs it will likely corrupt the file system again and again, especially if it happens during a write operation, because the data being written will be corrupt and need file system repair. A supply problem could do that too, but it would have to be a localized supply problem that feeds only a certain section of the logic board, otherwise the system would probably just lock an freeze.

I would certainly get a backup and/or clone of the drive while it's still in working order ASAP. Intermittent connection problems can be a PIA to isolate, and they can often be more common the hotter the system is.

 

[briloronmacrumo]

Just FYI: the video cards on the 2011 iMacs fail like clockwork( mine did ) every 3 to 4 years and the symptoms can be similar to what you've seen. All those HDD errors are concerning too. Just reformatting the HDD doesn't solve the cause of the problem. Have you run a SMART utility ( no affiliation ) on the drive? If it mentions any bad sectors it's time to replace it. Also, if you're booting from an external SSD, a bad internal HDD can still wreak havoc with the machine. Personally, I'd take it to an Apple store for evaluation.

 

[Easttime]

If it is a cable problem, which I think is the most likely, this event will re-occur. What I think is happening is that the cable once in a while is making an intermittent connection and if it occurs during reading and writing the results will be exactly as you described in your problem description. Additionally, once this occurs it will likely corrupt the file system again and again, especially if it happens during a write operation, because the data being written will be corrupt and need file system repair.

Aha. The cold connection gremlin. Chased one of those in a boat engine that kept quitting after it warmed up. Two years. Finally rewired the upper helm control panel and the problem went away.

Probably explains why my lovely mid-2011 iMac died after I replaced the hard drive to get more years out of it. I must have damaged a connection. Ended up with those symptoms. Started when the computer warmed up. Constantly corrupts the new hard drive.

 

[T'hain Esh Kelch]

Time for an update - Thanks for the posts guys.

Machine is running better, but there are still problems, even with the format and reinstall of the OS on the SSD.

When the drive goes from a question mark, to the halt sign, to suddenly booting up after sitting there to me implies either a cable/connection problem or a supply problem.

That's also a symptom that have had me wondering for quite a while! And that cable thing is also something I have suspected, although, after the format, it hasn't been doing that specific thing anymore, so I ruled that out.

When you run fsck you're essentially doing the same thing as running a repair option on the drive using Disk Utility from either another booted partition or a recovery partition. Disk Utility is not really a repair tool for hardware but a file system tool. I would back up or clone my drive if you haven't already.

Everything is backed up. 8) Scattered over 5 different NAS drives, but it is safe.

If you have a copy of Scannerz or a similar tool, put it into diagnostics mode and let it run interface tests on the unit for an hour or so. Do the same with bus/memory tests. It should not report any faults or problems at all. If it finds something in the interface tests then most likely the cable is bad or the connection isn't good. If it finds problems with the bus, then it implies either a logic board or supply problem. It shouldn't find any problems at all if everything is OK.

I will try that this weekend.

If it is a cable problem, which I think is the most likely, this event will re-occur. What I think is happening is that the cable once in a while is making an intermittent connection and if it occurs during reading and writing the results will be exactly as you described in your problem description. Additionally, once this occurs it will likely corrupt the file system again and again, especially if it happens during a write operation, because the data being written will be corrupt and need file system repair. A supply problem could do that too, but it would have to be a localized supply problem that feeds only a certain section of the logic board, otherwise the system would probably just lock an freeze.

There's never been an issue detecting the HDD, which is the original one that came with the machine. Whenever I boot from that, the machine runs exactly as expected.

As mentioned above, a format of the SSD definitely helped, and Disk Utility reports the drive and partition is fine. But I have had random app crashes and random reboots using a fresh OS install, although the previously mentioned boot issues are now gone, which is weird.

Maybe I should mention that the SSD is installed using the second unused SATA port in the machine, using the iFixit kit.

Just FYI: the video cards on the 2011 iMacs fail like clockwork( mine did ) every 3 to 4 years and the symptoms can be similar to what you've seen. All those HDD errors are concerning too. Just reformatting the HDD doesn't solve the cause of the problem. Have you run a SMART utility ( no affiliation ) on the drive? If it mentions any bad sectors it's time to replace it. Also, if you're booting from an external SSD, a bad internal HDD can still wreak havoc with the machine. Personally, I'd take it to an Apple store for evaluation.

I am well aware of the graphic card issue for that model and card, but since I didn't see anything I would relate to graphical artifacts, I ruled it out (And it is out of warranty for that specific recall, so..) At the same time, the SSD errors reported had me suspecting the drive, and booting from the HDD gave me nothing. Are the symptoms I describe really what people describe for the graphic card failure? I haven't come across it.
I will try the application you suggest.

Probably explains why my lovely mid-2011 iMac died after I replaced the hard drive to get more years out of it. I must have damaged a connection. Ended up with those symptoms. Started when the computer warmed up. Constantly corrupts the new hard drive.

I've had long hours of gaming on the machine after the OS reinstall (And before for that matter), and Blu-ray conversions running for hours, making the machine get as hot as it can. Didn't cause any symptoms, which is also another hit for the problem not being the graphic card, and heat in general. Also, waking from sleep was previously the most certain cause of trouble, which would rule heat out again.

 

[stuartak]

Just FYI: the video cards on the 2011 iMacs fail like clockwork( mine did ) every 3 to 4 years and the symptoms can be similar to what you've seen. All those HDD errors are concerning too. Just reformatting the HDD doesn't solve the cause of the problem. Have you run a SMART utility ( no affiliation ) on the drive? If it mentions any bad sectors it's time to replace it. Also, if you're booting from an external SSD, a bad internal HDD can still wreak havoc with the machine. Personally, I'd take it to an Apple store for evaluation.

If you take it to the Apple store for evaluation they will tell you its a vintage machine ready for the dumpster

 

[T'hain Esh Kelch]

We don't have Apple stores in my country anyway.

Yesterday it started having boot issues from the SSD again, following one of the regular "all apps die out one after one, and then random reboot". 3 reboots later, and still only the HDD was working fine. Could make the SSD active using Disk Utility.

At this point I am close to ordering a new SATA/Power cable for the SSD and installing that. Taking apart the iMac is just never fun.
Edit: Did some more Googling, and several cases points to the SATA cable. I've ordered a new one from eBay (18£ inc. shipping).

 

[wrldwzrd89]

Yikes... I'm currently running off a 2011-era iMac. It's currently working fine but hearing these reports does NOT inspire confidence...

In any case, I did replace the video card once already so I should be good there ^_^

 

[Dopeyman]

We don't have Apple stores in my country anyway.

Yesterday it started having boot issues from the SSD again, following one of the regular "all apps die out one after one, and then random reboot". 3 reboots later, and still only the HDD was working fine. Could make the SSD active using Disk Utility.

At this point I am close to ordering a new SATA/Power cable for the SSD and installing that. Taking apart the iMac is just never fun.
Edit: Did some more Googling, and several cases points to the SATA cable. I've ordered a new one from eBay (18£ inc. shipping).

This is the cable that I purchased to add a secondary SSD into my '11 27" iMac.... It's been working without any problems for over 3 years!!

 

[T'hain Esh Kelch]

Curious behavior today when booted from the SSD. Apps just closed at random. Not crash, not quit. Just closed. Finder did crash though, with the following crash report:

Edit: After the above description it ran 5 more minutes just fine, then everything started closing again, and then I got an eternal spin wheel. So strange.

Process:               Finder [359]
Path:                  /System/Library/CoreServices/Finder.app/Contents/MacOS/Finder
Identifier:            Finder
Version:               10.11.4 (10.11.4)
Code Type:             X86-64 (Native)
Parent Process:        ??? [1]
Responsible:           Finder [359]
User ID:               501

Date/Time:             2016-06-13 10:17:52.252 +0200
OS Version:            Mac OS X 10.11.5 (15F34)
Report Version:        11
Anonymous UUID:        D8A0A70D-7F55-49C5-EA88-0A6C7053E9FF


Time Awake Since Boot: 1200 seconds

System Integrity Protection: enabled

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_BAD_ACCESS (SIGBUS)
Exception Codes:       0x000000000000000a, 0x00007fff8cf0445b
Exception Note:        EXC_CORPSE_NOTIFY

VM Regions Near 0x7fff8cf0445b:
    __TEXT                 00007fff8ce50000-00007fff8ce93000 [  268K] r-x/r-x SM=COW  /System/Library/Frameworks/Metal.framework/Versions/A/Metal
--> __TEXT                 00007fff8ce93000-00007fff8cf7f000 [  944K] r-x/r-x SM=COW  /System/Library/Frameworks/Quartz.framework/Versions/A/Frameworks/QuickLookUI.framework/Versions/A/QuickLookUI
    unused shlib __TEXT    00007fff8cf7f000-00007fff8cf82000 [   12K] r-x/r-x SM=COW  system shared lib __TEXT not used by this process

Application Specific Information:
Performing @selector(handleCloseButton) from sender _NSThemeCloseWidget 0x7fe50074f1b0

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.QuickLookUIFramework    0x00007fff8cf0445b +[QLSeamlessOpener initialize] + 0
1   libobjc.A.dylib                   0x00007fff804b4c90 lookUpImpOrForward + 183
2   libobjc.A.dylib                   0x00007fff804ae591 objc_msgSend + 209
3   ???                               0x000000010f10db88 0 + 4547730312
4   ???                               0x000000010f10d9db 0 + 4547729883
5   com.apple.CoreFoundation          0x00007fff85494bbc __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12
6   com.apple.CoreFoundation          0x00007fff85494b4f ___CFXRegistrationPost_block_invoke + 63
7   com.apple.CoreFoundation          0x00007fff85494ac7 _CFXRegistrationPost + 407
8   com.apple.CoreFoundation          0x00007fff85494832 ___CFXNotificationPost_block_invoke + 50
9   com.apple.CoreFoundation          0x00007fff854515e2 -[_CFXNotificationRegistrar find:object:observer:enumerator:] + 1922
10  com.apple.CoreFoundation          0x00007fff85450835 _CFXNotificationPost + 693
11  com.apple.Foundation              0x00007fff82f7c17a -[NSNotificationCenter postNotificationName:object:userInfo:] + 66
12  com.apple.AppKit                  0x00007fff87fc2213 __18-[NSWindow _close]_block_invoke + 184
13  com.apple.AppKit                  0x00007fff87fc2115 -[NSWindow _close] + 374
14  ???                               0x000000010f10d36b 0 + 4547728235
15  ???                               0x000000010f0c61a4 0 + 4547436964
16  libsystem_trace.dylib             0x00007fff899d707a _os_activity_initiate + 75
17  com.apple.AppKit                  0x00007fff87f76dbd -[NSApplication sendAction:to:from:] + 460
18  com.apple.AppKit                  0x00007fff87f88f12 -[NSControl sendAction:to:] + 86
19  com.apple.AppKit                  0x00007fff87f88e3c __26-[NSCell _sendActionFrom:]_block_invoke + 131
20  libsystem_trace.dylib             0x00007fff899d707a _os_activity_initiate + 75
21  com.apple.AppKit                  0x00007fff87f88d99 -[NSCell _sendActionFrom:] + 144
22  libsystem_trace.dylib             0x00007fff899d707a _os_activity_initiate + 75
23  com.apple.AppKit                  0x00007fff87feb42a -[NSButtonCell performClick:] + 968
24  libsystem_trace.dylib             0x00007fff899d707a _os_activity_initiate + 75
25  com.apple.AppKit                  0x00007fff87f76dbd -[NSApplication sendAction:to:from:] + 460
26  com.apple.AppKit                  0x00007fff87f76b57 -[NSMenuItem _corePerformAction] + 336
27  com.apple.AppKit                  0x00007fff87f768b7 -[NSCarbonMenuImpl performActionWithHighlightingForItemAtIndex:] + 114
28  libsystem_trace.dylib             0x00007fff899d707a _os_activity_initiate + 75
29  com.apple.AppKit                  0x00007fff87f757a5 -[NSMenu performKeyEquivalent:] + 357
30  com.apple.AppKit                  0x00007fff87f74949 -[NSApplication _handleKeyEquivalent:] + 920
31  com.apple.AppKit                  0x00007fff87e9b0fe -[NSApplication sendEvent:] + 4274
32  ???                               0x000000010f086b3d 0 + 4547177277
33  com.apple.AppKit                  0x00007fff87d01df2 -[NSApplication run] + 796
34  com.apple.AppKit                  0x00007fff87ccb368 NSApplicationMain + 1176
35  ???                               0x000000010f06d8d8 0 + 4547074264
36  libdyld.dylib                     0x00007fff82c6c5ad start + 1

Thread 1:: Dispatch queue: com.apple.libdispatch-manager
0   libsystem_kernel.dylib            0x00007fff84d1aefa kevent_qos + 10
1   libdispatch.dylib                 0x00007fff84b72165 _dispatch_mgr_invoke + 216
2   libdispatch.dylib                 0x00007fff84b71dcd _dispatch_mgr_thread + 52

Thread 2:: com.apple.NSEventThread
0   libsystem_kernel.dylib            0x00007fff84d13f72 mach_msg_trap + 10
1   libsystem_kernel.dylib            0x00007fff84d133b3 mach_msg + 55
2   com.apple.CoreFoundation          0x00007fff8547e1c4 __CFRunLoopServiceMachPort + 212
3   com.apple.CoreFoundation          0x00007fff8547d68c __CFRunLoopRun + 1356
4   com.apple.CoreFoundation          0x00007fff8547ced8 CFRunLoopRunSpecific + 296
5   com.apple.AppKit                  0x00007fff87e63d95 _NSEventThread + 149
6   libsystem_pthread.dylib           0x00007fff8b7ba99d _pthread_body + 131
7   libsystem_pthread.dylib           0x00007fff8b7ba91a _pthread_start + 168
8   libsystem_pthread.dylib           0x00007fff8b7b8351 thread_start + 13

Thread 3:
0   libsystem_kernel.dylib            0x00007fff84d1a5e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib           0x00007fff8b7ba578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib           0x00007fff8b7b8341 start_wqthread + 13

Thread 4:
0   libsystem_kernel.dylib            0x00007fff84d1a5e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib           0x00007fff8b7ba578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib           0x00007fff8b7b8341 start_wqthread + 13

Thread 5:
0   libsystem_kernel.dylib            0x00007fff84d1a5e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib           0x00007fff8b7ba578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib           0x00007fff8b7b8341 start_wqthread + 13

Thread 6:
0   libsystem_kernel.dylib            0x00007fff84d1a5e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib           0x00007fff8b7ba578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib           0x00007fff8b7b8341 start_wqthread + 13

Thread 7:
0   libsystem_kernel.dylib            0x00007fff84d1a5e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib           0x00007fff8b7ba578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib           0x00007fff8b7b8341 start_wqthread + 13

Thread 8:
0   libsystem_kernel.dylib            0x00007fff84d1a5e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib           0x00007fff8b7ba578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib           0x00007fff8b7b8341 start_wqthread + 13

Thread 9:
0   libsystem_kernel.dylib            0x00007fff84d1a5e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib           0x00007fff8b7ba578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib           0x00007fff8b7b8341 start_wqthread + 13

Thread 10:
0   libsystem_kernel.dylib            0x00007fff84d1a5e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib           0x00007fff8b7ba578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib           0x00007fff8b7b8341 start_wqthread + 13

Thread 11:
0   libsystem_kernel.dylib            0x00007fff84d1a5e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib           0x00007fff8b7ba578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib           0x00007fff8b7b8341 start_wqthread + 13

Thread 0 crashed with X86 Thread State (64-bit):
  rax: 0x00007fff7045dee8  rbx: 0x00007fff7045debb  rcx: 0x0000000000000004  rdx: 0x00007fff7039f2b0
  rdi: 0x00007fff72e07148  rsi: 0x00007fff8585694e  rbp: 0x00007fff50b964f0  rsp: 0x00007fff50b96498
   r8: 0x00000000fffffffc   r9: 0x00007fff7039f2a8  r10: 0x00000000ffffffff  r11: 0x00007fff8cf0445b
  r12: 0x00007ffffffffff8  r13: 0x00007fe5004000b0  r14: 0x00007fff7039f0f0  r15: 0x00007fff72e07148
  rip: 0x00007fff8cf0445b  rfl: 0x0000000000010246  cr2: 0x00007fff8cf0445b

Logical CPU:     2
Error Code:      0x00000014
Trap Number:     14


Binary Images:
                 0 - 0xffffffffffffffff  com.apple.finder (10.11.4 - 10.11.4) <88848909-83E1-39AF-9B8E-A535DEC3B3E8> /System/Library/CoreServices/Finder.app/Contents/MacOS/Finder
                 0 - 0xffffffffffffffff  com.apple.bom (14.0 - 193.7) <9B8AE30B-24A3-37AB-B04E-4CE67AED4775> /System/Library/PrivateFrameworks/Bom.framework/Versions/A/Bom
                 0 - 0xffffffffffffffff  libCoreStorage.dylib (???) <E6283FE9-B5AC-3110-8D4C-8E2BF185983E> /usr/lib/libCoreStorage.dylib
                 0 - 0xffffffffffffffff  com.apple.AppleFSCompression (81.20.2 - 1.0) <2FE122A9-5265-320A-9600-FFC5CE4DE197> /System/Library/PrivateFrameworks/AppleFSCompression.framework/Versions/A/AppleFSCompression
                 0 - 0xffffffffffffffff  com.apple.MediaKit (16 - 809) <BF8032FE-6645-37F6-A622-BC7EEE3EAABF> /System/Library/PrivateFrameworks/MediaKit.framework/Versions/A/MediaKit
                 0 - 0xffffffffffffffff  com.apple.CoreDuetDaemonProtocol (1.0 - 1) <1D60D60C-914A-3BAB-8607-79F68F4C712E> /System/Library/PrivateFrameworks/CoreDuetDaemonProtocol.framework/Versions/A/CoreDuetDaemonProtocol
                 0 - 0xffffffffffffffff  libtidy.A.dylib (???) <6859415D-7A43-384E-ABDD-AA6B2AA9FDCD> /usr/lib/libtidy.A.dylib
       0x113c21000 -        0x113c29fff  com.apple.SyncedDefaults (2.0 - 235) <46C56671-735B-3909-88AD-EBF87CE6ED46> /System/Library/PrivateFrameworks/SyncedDefaults.framework/SyncedDefaults
       0x114b71000 -        0x114b71fe7 +cl_kernels (???) <C1F605B5-0BF2-4F3E-9D66-A694441EE111> cl_kernels
    0x7fff63ae1000 -     0x7fff63b1825f  dyld (360.22) <A468D85E-D8D6-3461-8C99-49D3B9ACFC63> /usr/lib/dyld
    0x7fff804ad000 -     0x7fff80818657  libobjc.A.dylib (680) <D55D5807-1FBE-32A5-9105-44D7AFE68C27> /usr/lib/libobjc.A.dylib
    0x7fff808c9000 -     0x7fff808f7ff7  libsandbox.1.dylib (460.50.4) <C6797DA3-DF51-3774-9D02-31670A820D18> /usr/lib/libsandbox.1.dylib
    0x7fff8093d000 -     0x7fff809ccfff  com.apple.CorePDF (4.0 - 4) <849BBFF6-0700-3ED1-98DF-A6E93B9B707F> /System/Library/PrivateFrameworks/CorePDF.framework/Versions/A/CorePDF
    0x7fff809de000 -     0x7fff80af0fef  libvDSP.dylib (563.5) <5702650E-DF08-3D58-B16F-9EF0A28702B3> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvDSP.dylib
    0x7fff80b25000 -     0x7fff80b28fff  com.apple.Mangrove (1.0 - 1) <2D86B3AD-64C3-3BB4-BC66-1CFD0C90E844> /System/Library/PrivateFrameworks/Mangrove.framework/Versions/A/Mangrove
    0x7fff80b29000 -     0x7fff80b3efff  com.apple.ToneKit (1.0 - 1) <6D5AD263-308F-3F70-8D86-7027569D2694> /System/Library/PrivateFrameworks/ToneKit.framework/Versions/A/ToneKit
    0x7fff80b3f000 -     0x7fff80b44ff7  com.apple.NetFSServer (2.0 - 1) <A233387F-2626-334C-8CA6-E947B56E1654> /System/Library/PrivateFrameworks/NetFSServer.framework/Versions/A/NetFSServer
    0x7fff80b45000 -     0x7fff80b51ff7  com.apple.commonutilities (8.0 - 900) <18D60822-654D-3532-A47E-A2239EF4E301> /System/Library/PrivateFrameworks/CommonUtilities.framework/Versions/A/CommonUtilities
    0x7fff80b7f000 -     0x7fff80b7ffff  com.apple.ApplicationServices (48 - 48) <ADD57D3A-142F-3EF5-BFD8-EACD82164884> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices
    0x7fff80bbc000 -     0x7fff80bbffff  libCoreVMClient.dylib (119.5) <560D70FB-709F-3030-96C9-F249FCB7DA6D> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libCoreVMClient.dylib
    0x7fff80bc0000 -     0x7fff80c99fff  com.apple.CoreMedia (1.0 - 1731.15.204) <4BFDD68E-9411-3358-8679-BB3EDA94F9A2> /System/Library/Frameworks/CoreMedia.framework/Versions/A/CoreMedia
    0x7fff80c9a000 -     0x7fff80c9dff7  com.apple.iChat.InstantMessage (8.0 - 5017) <989738B4-0269-3DD6-AAEC-2B712FB765D5> /System/Library/Frameworks/InstantMessage.framework/Versions/A/InstantMessage
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    0x7fff86152000 -     0x7fff86157ff7  libheimdal-asn1.dylib (453.40.10) <981DE40B-FA16-36F7-BE92-8C8A115D6CD9> /usr/lib/libheimdal-asn1.dylib
    0x7fff86158000 -     0x7fff8624aff7  libiconv.2.dylib (44) <F05A0A5A-92A9-3668-8F20-F27CBDA26BE9> /usr/lib/libiconv.2.dylib
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    0x7fff86275000 -     0x7fff86294ff7  com.apple.framework.Apple80211 (11.0 - 1121.34.2) <90477FAE-B835-3931-80FB-FDFF02B21D9D> /System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Apple80211
    0x7fff86295000 -     0x7fff862c7fff  com.apple.CommerceKit (1.2.0 - 463.9) <A74B7ABC-5B01-3C09-AF3C-6951B11D230A> /System/Library/PrivateFrameworks/CommerceKit.framework/Versions/A/CommerceKit
    0x7fff862ca000 -     0x7fff862e4ff3  liblzma.5.dylib (10) <CC03591B-FA57-3CA5-AC81-0D76033AC0CE> /usr/lib/liblzma.5.dylib
    0x7fff862e5000 -     0x7fff8634cfff  com.apple.framework.CoreWiFi (11.0 - 1101.20) <993592F1-B3F1-3FAD-87BD-EA83C361BCCF> /System/Library/PrivateFrameworks/CoreWiFi.framework/Versions/A/CoreWiFi
    0x7fff86350000 -     0x7fff86358ffb  libsystem_dnssd.dylib (625.50.5) <4D10E12B-59B5-386F-82DA-326F18028F0A> /usr/lib/system/libsystem_dnssd.dylib
    0x7fff86359000 -     0x7fff864a7ff7  com.apple.SystemMigration (988 - 988) <93B80F09-A4A4-3DB4-8364-BEEEC6C5E072> /System/Library/PrivateFrameworks/SystemMigration.framework/Versions/A/SystemMigration
    0x7fff864a8000 -     0x7fff86518fff  com.apple.ids (10.0 - 1000) <12F08B55-D23E-351A-BB2C-B9D691D4044F> /System/Library/PrivateFrameworks/IDS.framework/Versions/A/IDS
    0x7fff8654f000 -     0x7fff86576fff  com.apple.ChunkingLibrary (167 - 167) <AD7F285C-005E-36BB-98A3-5826413533BE> /System/Library/PrivateFrameworks/ChunkingLibrary.framework/Versions/A/ChunkingLibrary
    0x7fff86e1c000 -     0x7fff86e2aff7  libbz2.1.0.dylib (38) <28E54258-C0FE-38D4-AB76-1734CACCB344> /usr/lib/libbz2.1.0.dylib
    0x7fff86e2b000 -     0x7fff87120fff  com.apple.HIToolbox (2.1.1 - 807.2) <36413C45-36AF-34EF-9C0E-F18B31D1E565> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox
    0x7fff87121000 -     0x7fff87168ff7  com.apple.AOSAccounts (1.3.1 - 1.10.02) <FFD13410-D077-3EAF-8EFB-5A4F99AE2113> /System/Library/PrivateFrameworks/AOSAccounts.framework/Versions/A/AOSAccounts
    0x7fff87169000 -     0x7fff87172ff3  libsystem_notify.dylib (150.40.1) <D48BDE34-0F7E-34CA-A0FF-C578E39987CC> /usr/lib/system/libsystem_notify.dylib
    0x7fff87173000 -     0x7fff87575fff  libLAPACK.dylib (1162.2) <42238ED4-6B7A-39D0-BFF2-304A0C287213> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libLAPACK.dylib
    0x7fff8758c000 -     0x7fff8758fffb  libScreenReader.dylib (426.42) <16FC79D1-4573-3E90-945F-CBA22D5185FD> /usr/lib/libScreenReader.dylib
    0x7fff87590000 -     0x7fff87590ff7  libunc.dylib (29) <DDB1E947-C775-33B8-B461-63E5EB698F0E> /usr/lib/system/libunc.dylib
    0x7fff87638000 -     0x7fff87af6fcf  com.apple.vImage (8.0 - 8.0) <85FB412E-EB30-3433-A79B-B3970FC83580> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.framework/Versions/A/vImage
    0x7fff87af7000 -     0x7fff87b02ff7  libChineseTokenizer.dylib (16) <79B8C67A-3061-3C78-92CD-4650719E68D4> /usr/lib/libChineseTokenizer.dylib
    0x7fff87b03000 -     0x7fff87b0bff7  com.apple.CloudServices (1.0 - 154.50.9) <CA10E6A3-36AA-3513-90AE-B71B6B1C0094> /System/Library/PrivateFrameworks/CloudServices.framework/Versions/A/CloudServices
    0x7fff87b0c000 -     0x7fff87c29fff  libsqlite3.dylib (216.4) <DC3D59E7-91A3-374F-957C-6699729CD82B> /usr/lib/libsqlite3.dylib
    0x7fff87c2a000 -     0x7fff87c2bff3  com.apple.print.framework.Print (10.0 - 266) <3E85F70C-D7D4-34E1-B88A-C1F503F99CDA> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Print.framework/Versions/A/Print
    0x7fff87c2c000 -     0x7fff87c87ff7  libTIFF.dylib (1450) <5BB63D48-B807-31FB-B13F-05C60584707E> /System/Library/Frameworks/ImageIO.framework/Versions/A/Resources/libTIFF.dylib
    0x7fff87c88000 -     0x7fff87cb3ffb  libarchive.2.dylib (33.20.2) <6C370A21-63FD-3A68-B4B3-5333F24B770B> /usr/lib/libarchive.2.dylib
    0x7fff87cb4000 -     0x7fff87cbcfff  com.apple.AppleSRP (5.0 - 1) <840A5C20-6452-36BB-ACF7-29BA6CBF7C48> /System/Library/PrivateFrameworks/AppleSRP.framework/Versions/A/AppleSRP
    0x7fff87cbd000 -     0x7fff87cbffff  com.apple.marco (10.0 - 1000) <FA3176F5-4C71-3CB7-B384-9662513E9B4B> /System/Library/PrivateFrameworks/Marco.framework/Versions/A/Marco
    0x7fff87cc0000 -     0x7fff87cc4fff  libcache.dylib (75) <9548AAE9-2AB7-3525-9ECE-A2A7C4688447> /usr/lib/system/libcache.dylib
    0x7fff87cc5000 -     0x7fff888eeff7  com.apple.AppKit (6.9 - 1404.47) <F3411F6E-DD87-34D0-8C68-C69B2205E41D> /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
    0x7fff888ef000 -     0x7fff888fafff  com.apple.DirectoryService.Framework (10.11 - 194) <6F827D0E-0F02-3B09-B2A8-252865EECA7F> /System/Library/Frameworks/DirectoryService.framework/Versions/A/DirectoryService
    0x7fff888fb000 -     0x7fff888fdff7  com.apple.SafariServices.framework (11601 - 11601.6.17) <98035563-BCB5-3BCA-A519-FB27B4F02998> /System/Library/PrivateFrameworks/SafariServices.framework/Versions/A/SafariServices
    0x7fff888fe000 -     0x7fff88922fff  com.apple.quartzfilters (1.10.0 - 1.10.0) <F5C482E2-5AFB-3959-8C01-C149D48E7583> /System/Library/Frameworks/Quartz.framework/Versions/A/Frameworks/QuartzFilters.framework/Versions/A/QuartzFilters
    0x7fff88aa9000 -     0x7fff88ab1fff  com.apple.frameworks.CoreDaemon (1.3 - 1.3) <CC53DC12-9231-3C4F-921B-9A770D463323> /System/Library/PrivateFrameworks/CoreDaemon.framework/Versions/B/CoreDaemon
    0x7fff88ab5000 -     0x7fff88ac7fff  com.apple.CloudPhotoServicesConfiguration (1.5 - 370.42.0) <CDD720AF-F4C0-31CE-91DD-D2F4E0DEC109> /System/Library/PrivateFrameworks/CloudPhotoServices.framework/Versions/A/Frameworks/CloudPhotoServicesConfiguration.framework/Versions/A/CloudPhotoServicesConfiguration
    0x7fff891fb000 -     0x7fff891fffff  libpam.2.dylib (20) <CFCD19BD-87BC-3F2B-BB1C-4C23E8E55F1A> /usr/lib/libpam.2.dylib
    0x7fff89262000 -     0x7fff892c5fff  libAVFAudio.dylib (161.2) <1A98DBF3-490B-37FB-928A-AB1E36E6E5DD> /System/Library/Frameworks/AVFoundation.framework/Versions/A/Resources/libAVFAudio.dylib
    0x7fff892c6000 -     0x7fff892d2ff7  com.apple.OpenDirectory (10.11 - 194) <31A67AD5-5CC2-350A-96D7-821DF4BC4196> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/OpenDirectory
    0x7fff892d6000 -     0x7fff89311ff7  com.apple.AuthKitUI (1.0 - 1) <E4792D6A-590C-326E-8CC7-2EB5843C51C6> /System/Library/PrivateFrameworks/AuthKitUI.framework/Versions/A/AuthKitUI
    0x7fff89344000 -     0x7fff894c2fff  com.apple.UIFoundation (1.0 - 436.1) <AABB5267-E7B7-3D75-B051-E665BDA8DEF4> /System/Library/PrivateFrameworks/UIFoundation.framework/Versions/A/UIFoundation
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    0x7fff895a6000 -     0x7fff899d4fff  com.apple.vision.FaceCore (3.3.1 - 3.3.1) <E54028EA-4217-3078-A2B1-C52E4214D59E> /System/Library/PrivateFrameworks/FaceCore.framework/Versions/A/FaceCore
    0x7fff899d5000 -     0x7fff899e6ff7  libsystem_trace.dylib (201.10.3) <F00E92E4-DBDA-3749-B5B3-0C3FBBABA1CB> /usr/lib/system/libsystem_trace.dylib
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    0x7fff89a5b000 -     0x7fff89a77ff3  libresolv.9.dylib (60) <A650B5C8-1950-36A0-86D1-0B2465318BFA> /usr/lib/libresolv.9.dylib
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    0x7fff89af8000 -     0x7fff89b67fff  com.apple.datadetectorscore (7.0 - 460) <FA46DEE8-B25B-3E84-B067-6A31193A0885>

*Snip*

Any suggestions? Quite strange that it happened exactly 20 minuts after boot...

Yikes... I'm currently running off a 2011-era iMac. It's currently working fine but hearing these reports does NOT inspire confidence...

In any case, I did replace the video card once already so I should be good there ^_^

If you have changed the graphic card, then your machine is likely just as faulty as every other machine. Sometimes parts just fail, and in any case, my part is something I installed myself (If it is indeed the SATA cable).

 

[MacRobert10]

You may want to try the following:

1. If you don't have an external drive you can boot from, get one, or create a partition on one of you backups (if possible)
2. Install an OS onto the partition in step 1.
3. Boot from the external partition.
4. Once booted, immediately eject the internal drive using Disk Utility.
5. Use the system and see if the problems continue.

Doing the above will take the internal drive and its cable out of the equation. You might still have some sort of issues booting the system until you get step 4 done because as long as the internal is an active drive, even if it's not the boot drive, the boot process will attempt to communicate and boot it anyway, although its usage will be way down, and that too might cause some delays. Once the internal is excluded as in step 5, assuming the cable is the problem, the problems should stop. All of this can be done without opening the system up.

The reason I think you should try this is because I've seen similar problems occur when either the logic board has cracks or bad connections on the logic board, and that's a problem with the logic board. They will persist even if the system is booted via an external. If this turns out to be the case the first thing to do is reseat the RAM. The second would be to open the system and reseat all connections to the logic board. The only tools that can pick up faults like that are Scannerz and AHT, but the AHT version capable of that may not be the end-user type, but rather the one that Apple techs use at their repair facilities. If the problem is logic board related then if you're lucky it will just be an intermittent or loose connection, but if you're unlucky it will be the board itself, which usually means it can't be repaired.

The odds are it's the SATA cable, but those are only odds.

 

[T'hain Esh Kelch]

You may want to try the following:

Apparently it wasn't clear enough. The OS on the internal HDD runs just fine, so it is only localized to the SSD.

 

[MacRobert10]

Apparently it wasn't clear enough. The OS on the internal HDD runs just fine, so it is only localized to the SSD.

I guess I missed that and assumed it was one or the other.

 

[T'hain Esh Kelch]

So far so good - Exchanged the SATA cable for the SSD drive, and a few days later, there hasn't been a single issue. Seems like my problem was fixed.

Thanks for the feedback guys.