iMac (Late 2013) 27" i7 Haswell constant crashing with 32GB RAM

I just send an email

This email connect you to Apple Executive Relations EMEIA from Ireland.

Read somewhere that it is the highest Apple consumers support.

Don't know if its true, can always try :-)

I send them the same message that I wrote on this forum.

Also with a link to this forum.

Hopefully it will steer things up.

<Link Edited By Host>

From what i've seen, the only common thing is using 32GB of non-apple RAM on the new iMac (2013). I've seen people complain of the problem with the i5, i7, 755m, 780m, SSD's, HDD's.

Some links below to more people experiencing the same issues.

http://forums.macrumors.com/showthread.php?t=1668450

http://forum.crucial.com/t5/Apple-Mac-Memory/Late-2013-iMac-randomly-restarts-it self-once-a-day/td-p/136875

You can add my new 2-week old iMac to the same list :

27-inch, Late 2013

Processor 3.5 GHz Intel Core i7

Graphics NVIDIA GeForce GTX 780M 4096 MB

Software OS X 10.9 - Mavericks

Memory 32GB Crucial RAM ( CT4951612 )

500Gig SSD

I checked & read a lot concerning the RAM options and thought Crucial would be the best bet.

I've done Memtest with 2 cycles, twice. No error showed up, not once.

All modules report OK in System Utilities & config.

I'm having crashes every once in a while. Sometimes 2 times a day, sometimes a couple of days in between.

Mostly these happen when I'm not working and while the Mac is in sleep mode. When I wake it up I get the startup login screen and a crash report when logged in.

I haven't contacted Apple yet, but I'm tempted to at least report the issue so they have another use case.

I tend to believe that it's not the RAM but Mavericks which is a little buggy at release. I've read about the GTX 780M as a possible cause, Chrome is having some issues ( some processes in Activty Monitor that are not responding ) and some Adobe software as well is causing issues.

There is not a lot to be found on the Apple Forums however.

For now I disabled some Chrome plugins ( Pepper Flash ) to see if that makes a difference and started to use Firefox iso Chrome to see if that keeps the crashes away.

I can post a crash log, should that be of any use...

Looking at the post on the Crucial forums ( link above ), Crucial is aware of the "issue" and are working on a fix.

So perhaps this will be resolved soon.

I also have same problems with late 2013 27" imac.. I first bought Kingston 1,5V 4 x 8GB modules for it. Computer was crashing all the time. Then I returned Kingston modules back to the store and bought Crucial 1,35V modules, but problems continued. I took my imac last week to authorized service and they replaced motherboard. This replacement did not helped at all and computer was still crashing few times in a day with Crucial memory. Guys from the service borrowed me some 1,35V Kingston modules over the weekend and those have been working fine for last few days.

I am now waiting response from Crucial should I return them or do they have some working solution for imac. I have to give Kingston modules back to the service today or buy them, but I would like to get rid of Crucial modules first.

What an absolute pain!

Same situation with me, I tried mine first with 4x8GB Kingston HyperX 1.5v and it was crashing too. I then moved onto 4x8gb Crucial RAM and had the same crashes.

I got fed up and my iMac is being collected tomorrow.

Now I see that someone has contacted Crucial and they've admitted there's a problem on their end 😟

I considered cancelling the return but it has a small amount of yellowing on the bottom of the screen anyway (a common issue on the iMac 2012/2013 displays apparently). I managed to minimise it with the colour calibration and was willing to live with it, but as it's now being collected, I will just return it anyway and re-order.

The question now is whether I re-order it with 32GB of Apple RAM or try a third party again.

Which type of Kingston RAM are you using? I know you said 1.35v but is it CL11?

Im getting confused with this problem. I just took the Kingston memory modules out from the imac and returned them back to Service where I borrowed them. They installed 1,5V versions instead 1,35V as they said to me at the service and what I stated in the previous post. But anyway it has worked without any issues since last friday.

Kingston memory modules what I lent from the service were 4 x Kingston KTA-MB1600/ 8G 1,5V. But the funny thing is that this was exactly same memory I had in the first place in my imac and computer was crashing few times in a day.

They stated in the service, that after they replaced motherboard it crashed once with Crucial memory while they where transfering data from old HDD to SSD (I asked them to do this upgrade at the same time when they had to open this imac anyway). Maybe it crashed with some other reason and the motherboard replacement fixed this memory issue?

I have now installed Crucial memory modules (4 x 8GB DDR3L - 1600 SODIMM MAC) back on this imac. I'll monitor this for few days and reporting if it's crashing again.

Crucial replied to my email today "I can confirm that the memory kit ordered is 100% compatible." So let's see.

worked few hours and crashed again with Crucial

Anonymous UUID: 8BA8793F-137E-1FDD-CF2A-7978356D08D3

Tue Nov 12 21:27:56 2013

panic(cpu 2 caller 0xffffff801ccdca29): "Double fault at 0xffffff801ccd3d25, registers:\n" "CR0: 0x0000000080010033, CR2: 0x00000000f0b11dc8, CR3: 0x0000000046c6f02e, CR4: 0x00000000001606e0\n" "RAX: 0xffffff801ccd3db0, RBX: 0xffffff805c8da310, RCX: 0xffffff801ccd3cf8, RDX: 0x0000000000000008\n" "RSP: 0x00000000f0b11dd0, RBP: 0xffffff83ac3cbf70, RSI: 0xffffff805c8da310, RDI: 0x00007fff5d9f4380\n" "R8: 0x0000000000000000, R9: 0x0000000000000000, R10: 0x00000000000010bc, R11: 0x0000000000000206\n" "R12: 0x0000000000000000, R13: 0xffffff805c32c4e0, R14: 0x0000000000000008, R15: 0x00007fff5d9f4380\n" "RFL: 0x0000000000010283, RIP: 0xffffff801ccd3d25, CS: 0x0000000000000008, SS: 0x0000000000000010\n" "Error code: 0x0000000000000000\n"@/SourceCache/xnu/xnu-2422.1.72/osfmk/i386/trap_native.c:1 68

Backtrace (CPU 2), Frame : Return Address

0xffffff83a0895e80 : 0xffffff801cc22f69

0xffffff83a0895f00 : 0xffffff801ccdca29

0xffffff83a0896060 : 0xffffff801ccf3ecf

0xffffff83ac3cbf70 : 0xffffff801ccc9209

0xffffff83ac3cbfb0 : 0xffffff801ccf3e26

BSD process name corresponding to current thread: WindowServer

Mac OS version:

13A603

Kernel version:

Darwin Kernel Version 13.0.0: Thu Sep 19 22:22:27 PDT 2013; root:xnu-2422.1.72~6/RELEASE_X86_64

Kernel UUID: 1D9369E3-D0A5-31B6-8D16-BFFBBB390393

Kernel slide: 0x000000001ca00000

Kernel text base: 0xffffff801cc00000

System model name: iMac14,2 (Mac-27ADBB7B4CEE8E61)

System uptime in nanoseconds: 9335589697664

last loaded kext at 5444868318050: com.apple.filesystems.afpfs 11.0 (addr 0xffffff7f9f1b7000, size 348160)

last unloaded kext at 306401032327: com.apple.filesystems.msdosfs 1.9 (addr 0xffffff7f9f199000, size 57344)

loaded kexts:

com.avast.AvastFileShield 2.0.0

com.avast.PacketForwarder 1.3

com.apple.filesystems.afpfs 11.0

com.apple.nke.asp-tcp 8.0.0

com.apple.driver.AppleBluetoothMultitouch 80.14

com.apple.driver.AudioAUUC 1.60

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.filesystems.autofs 3.0

com.apple.iokit.IOBluetoothSerialManager 4.2.0f6

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.driver.AGPM 100.14.11

com.apple.driver.ApplePlatformEnabler 2.0.9d1

com.apple.driver.X86PlatformShim 1.0.0

com.apple.driver.AppleHDA 2.5.2fc2

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.driver.AppleMikeyDriver 2.5.2fc2

com.apple.driver.AppleBacklight 170.3.5

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleUpstreamUserClient 3.5.13

com.apple.driver.AppleIntelHD5000Graphics 8.1.8

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.2.0f6

com.apple.driver.AppleHWAccess 1

com.apple.GeForce 8.1.8

com.apple.driver.AppleIntelFramebufferAzul 8.1.8

com.apple.driver.AppleSMCLMU 2.0.4d1

com.apple.driver.AppleThunderboltIP 1.0.10

com.apple.driver.AppleMCCSControl 1.1.12

com.apple.driver.AppleLPC 1.7.0

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 35

com.apple.driver.AppleUSBHub 650.4.4

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.4.0

com.apple.driver.AppleSDXC 1.4.0

com.apple.iokit.AppleBCM5701Ethernet 3.6.9b9

com.apple.driver.AirPort.Brcm4360 800.21.45

com.apple.driver.AppleAHCIPort 2.9.5

com.apple.driver.AppleUSBXHCI 650.4.3

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleACPIButtons 2.0

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleSMBIOS 2.0

com.apple.driver.AppleACPIEC 2.0

com.apple.driver.AppleAPIC 1.7

com.apple.nke.applicationfirewall 153

com.apple.security.quarantine 3

com.apple.security.SecureRemotePassword 1.0

com.apple.driver.AppleBluetoothHIDKeyboard 170.15

com.apple.driver.AppleHIDKeyboard 170.15

com.apple.driver.IOBluetoothHIDDriver 4.2.0f6

com.apple.driver.AppleMultitouchDriver 245.13

com.apple.kext.triggers 1.0

com.apple.iokit.IOSCSIArchitectureModelFamily 3.6.0

com.apple.iokit.IOSerialFamily 10.0.7

com.apple.driver.DspFuncLib 2.5.2fc2

com.apple.vecLib.kext 1.0.0

com.apple.iokit.IOAudioFamily 1.9.4fc11

com.apple.kext.OSvKernDSPLib 1.14

com.apple.iokit.IOBluetoothFamily 4.2.0f6

com.apple.driver.AppleBacklightExpert 1.0.4

com.apple.nvidia.driver.NVDAGK100Hal 8.1.8

com.apple.iokit.IOSurface 91

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.2.0f6

com.apple.driver.AppleSMBusPCI 1.0.12d1

com.apple.iokit.IOAcceleratorFamily 98.7.1

com.apple.nvidia.driver.NVDAResman 8.1.8

com.apple.iokit.IOAcceleratorFamily2 98.7.1

com.apple.AppleGraphicsDeviceControl 3.4.12

com.apple.driver.AppleHDAController 2.5.2fc2

com.apple.iokit.IOHDAFamily 2.5.2fc2

com.apple.driver.X86PlatformPlugin 1.0.0

com.apple.driver.AppleSMC 3.1.6d1

com.apple.driver.AppleThunderboltEDMSink 1.2.1

com.apple.driver.AppleSMBusController 1.0.11d1

com.apple.driver.IOPlatformPluginFamily 5.5.1d27

com.apple.iokit.IONDRVSupport 2.3.6

com.apple.iokit.IOGraphicsFamily 2.3.6

com.apple.driver.AppleUSBMergeNub 650.4.0

com.apple.driver.AppleUSBComposite 650.4.0

com.apple.driver.AppleThunderboltDPOutAdapter 2.5.0

com.apple.driver.AppleThunderboltDPInAdapter 2.5.0

com.apple.driver.AppleThunderboltDPAdapterFamily 2.5.0

com.apple.driver.AppleThunderboltPCIDownAdapter 1.4.0

com.apple.iokit.IOUSBUserClient 650.4.4

com.apple.driver.AppleThunderboltNHI 1.9.2

com.apple.iokit.IOThunderboltFamily 2.8.5

com.apple.iokit.IOEthernetAVBController 1.0.3b3

com.apple.iokit.IO80211Family 600.34

com.apple.driver.mDNSOffloadUserClient 1.0.1b4

com.apple.iokit.IONetworkingFamily 3.2

com.apple.iokit.IOAHCIFamily 2.6.0

com.apple.iokit.IOUSBFamily 650.4.4

com.apple.driver.AppleEFINVRAM 2.0

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.driver.AppleEFIRuntime 2.0

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 278.10

com.apple.kext.AppleMatch 1.0.0d1

com.apple.security.TMSafetyNet 7

com.apple.driver.AppleKeyStore 2

com.apple.driver.DiskImages 371.1

com.apple.iokit.IOStorageFamily 1.9

com.apple.iokit.IOReportFamily 21

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleACPIPlatform 2.0

com.apple.iokit.IOPCIFamily 2.8

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.corecrypto 1.0

com.apple.kec.pthread 1

Model: iMac14,2, BootROM IM142.0118.B00, 4 processors, Intel Core i5, 3.2 GHz, 32 GB, SMC 2.15f2

Graphics: NVIDIA GeForce GT 755M, NVIDIA GeForce GT 755M, PCIe, 1024 MB

Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x859B, 0x435438473353313630424D2E4D3136464444

Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x859B, 0x435438473353313630424D2E4D3136464444

Memory Module: BANK 0/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x435438473353313630424D2E4D3136464444

Memory Module: BANK 1/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x435438473353313630424D2E4D3136464444

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x111), Broadcom BCM43xx 1.0 (6.30.223.154.45)

Bluetooth: Version 4.2.0f6 12982, 3 services, 23 devices, 1 incoming serial ports

Network Service: Ethernet, Ethernet, en0

Serial ATA Device: Samsung SSD 840 EVO 750GB, 750,16 GB

USB Device: FaceTime HD Camera (Built-in)

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

Thunderbolt Bus: iMac, Apple Inc., 23.10

Just a thought.

Any of you guys using Chrome ? I'm thinking there is a link.

If I close chrome (even the new Version 31.0.1650.48 ), I seem to have far less crahes & reboots.

After using Firefox for a couple of days & no issues I used Chrome again ths morning, left it open & had a crash 30mins later...

Perhaps there's a link here or with some plugin Chrome's using.

gino

I started to use Safari instead of Chrome today and this has already crashed twice

I also have i7 iMac with 3rd party 32 ram. I've unplugged all my USB perifirals and have just a Thunderbold drive connected and don't seem to get crashes. There is a lot of people having USB audio interface problems.

Disconnect all your USB and see if it crashes.

Unfortunately no USB perifirals connected here.

Same problem here.

iMac 27-inch, Late 2013 - 3,5 GHz Intel Core i7

NVIDIA GeForce GTX 780M 4096 MB

Upgraded to 32GB 1600 MHz DDR3 from Crucial.

first 48hours: 6 x Intermitent Crashes and Panic, different applications and situations. Totaly random.

I did RMA the memory, received new one,

first 24 hours: 2 x panic's.

I think I have to RMA the iMac as it unusable and looks like everybody is suffering the same problem.

Thanks

Luis