8 Replies Latest reply: Feb 7, 2013 6:19 PM by RuiLeao
RuiLeao Level 1 Level 1 (0 points)

Hello everyone!

I have an early 15' Macbook Pro 2.2Ghz and i decided to update my RAM from 4gb to 16gb 1600 mhz Corsair Vengeance.

Im using Mountain Lion and everything was ok till i changed my ram.

There are no kernel panics and no problems at all on my mac os if I'm using the integrated graphic card, but if i change it to the dedicated HD 6750M , or if it changes by itself, after a few seconds or minutes i just get a kernel panic.

For example, i opened Safari and i decided to watch a video on youtube. I just got this kernel panic:


Interval Since Last Panic Report: 265904 sec

Panics Since Last Report: 11

Anonymous UUID: AAB53342-FB87-456A-0C54-A58FF67B93E6

Thu Feb 7 22:38:42 2013

panic(cpu 0 caller 0xffffff80038b7bd5): Kernel trap at 0xffffff80034cdd00, type 14=page fault, registers:

CR0: 0x000000008001003b, CR2: 0xffffff80034cdd00, CR3: 0x000000005f063039, CR4: 0x00000000000606e0

RAX: 0x0000000000000000, RBX: 0x0000000000000000, RCX: 0x0000000000000000, RDX: 0x0000000000000074

RSP: 0xffffff8026430c50, RBP: 0xffffff81d4b93fb0, RSI: 0xffffff80252686b4, RDI: 0xffffff8026598000

R8: 0x0000000000000001, R9: 0x0000000000000000, R10: 0x0000000000000000, R11: 0xffffff8003e7de01

R12: 0xffffff8003ebebe8, R13: 0x0000000000000000, R14: 0xffffff8026430c50, R15: 0xffffff8003813030

RFL: 0x0000000000010046, RIP: 0xffffff80034cdd00, CS: 0x0000000000000008, SS: 0x0000000000000010

Fault CR2: 0xffffff80034cdd00, Error code: 0x0000000000000010, Fault CPU: 0x0

Backtrace (CPU 0), Frame : Return Address

0xffffff81d4b93c60 : 0xffffff800381d626

0xffffff81d4b93cd0 : 0xffffff80038b7bd5

0xffffff81d4b93ea0 : 0xffffff80038ce4ed

0xffffff81d4b93ec0 : 0xffffff80034cdd00

0xffffff81d4b93fb0 : 0x10

0xffffff8026430c50 : 0x700000600007fff

Unaligned frame

Backtrace terminated-invalid frame pointer 0x50e8e3d00000000f

BSD process name corresponding to current thread: WebProcess

Mac OS version:


Kernel version:

Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64

Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333

Kernel slide: 0x0000000003600000

Kernel text base: 0xffffff8003800000

System model name: MacBookPro8,2 (Mac-94245A3940C91C80)

System uptime in nanoseconds: 874975433198

last loaded kext at 763789520874: com.apple.filesystems.smbfs     1.8 (addr 0xffffff7f85c8f000, size 229376)

last unloaded kext at 385704300428: com.apple.driver.AppleUSBUHCI     5.2.5 (addr 0xffffff7f84311000, size 65536)

loaded kexts:

com.vara.driver.VaraAudio     1.0.3

net.telestream.driver.TelestreamAudio     1.0.5

com.logmein.driver.LogMeInSoundDriver     1.0.0

com.rim.driver.BlackBerryUSBDriverInt     0.0.67

com.apple.filesystems.smbfs     1.8

com.apple.filesystems.ntfs     3.10

com.apple.driver.AppleBluetoothMultitouch     75.15

com.apple.driver.AppleHWSensor     1.9.5d0

com.apple.iokit.IOBluetoothSerialManager     4.0.9f33

com.apple.driver.AGPM     100.12.69

com.apple.driver.AppleMikeyHIDDriver     122

com.apple.driver.AppleHDA     2.3.1f2

com.apple.filesystems.autofs     3.0

com.apple.driver.AudioAUUC     1.60

com.apple.iokit.IOUserEthernet     1.0.0d1

com.apple.driver.AppleIntelHD3000Graphics     8.0.0

com.apple.driver.AppleSMCLMU     2.0.2d0

com.apple.driver.AppleSMCPDRC     1.0.0

com.apple.driver.AppleUpstreamUserClient     3.5.10

com.apple.kext.AMDFramebuffer     8.0.0

com.apple.Dont_Steal_Mac_OS_X     7.0.0

com.apple.driver.ApplePolicyControl     3.2.11

com.apple.AMDRadeonAccelerator     1.0.0

com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport     4.0.9f33

com.apple.driver.AppleIntelSNBGraphicsFB     8.0.0

com.apple.driver.AppleMikeyDriver     2.3.1f2

com.apple.driver.SMCMotionSensor     3.0.2d6

com.apple.driver.AppleMCCSControl     1.0.33

com.apple.driver.AppleLPC     1.6.0

com.apple.driver.AppleMuxControl     3.2.11

com.apple.driver.ACPI_SMC_PlatformPlugin     1.0.0

com.apple.driver.AppleUSBTCButtons     235.4

com.apple.driver.AppleUSBTCKeyboard     235.4

com.apple.driver.AppleIRController     320.15

com.apple.iokit.SCSITaskUserClient     3.5.1

com.apple.driver.XsanFilter     404

com.apple.iokit.IOAHCIBlockStorage     2.2.2

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless     1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib     1.0.0d1

com.apple.BootCache     34

com.apple.driver.AppleUSBHub     5.2.5

com.apple.driver.AirPort.Brcm4331     602.15.22

com.apple.driver.AppleSDXC     1.2.2

com.apple.iokit.AppleBCM5701Ethernet     3.2.5b3

com.apple.driver.AppleFWOHCI     4.9.6

com.apple.driver.AppleAHCIPort     2.4.1

com.apple.driver.AppleUSBEHCI     5.4.0

com.apple.driver.AppleEFINVRAM     1.6.1

com.apple.driver.AppleSmartBatteryManager     161.0.0

com.apple.driver.AppleACPIButtons     1.6

com.apple.driver.AppleRTC     1.5

com.apple.driver.AppleHPET     1.7

com.apple.driver.AppleSMBIOS     1.9

com.apple.driver.AppleACPIEC     1.6

com.apple.driver.AppleAPIC     1.6

com.apple.driver.AppleIntelCPUPowerManagementClient     196.0.0

com.apple.nke.applicationfirewall     4.0.39

com.apple.security.quarantine     2

com.apple.driver.AppleIntelCPUPowerManagement     196.0.0

com.apple.driver.IOBluetoothHIDDriver     4.0.9f33

com.apple.driver.AppleMultitouchDriver     235.28

com.apple.iokit.IOSerialFamily     10.0.6

com.apple.driver.DspFuncLib     2.3.1f2

com.apple.kext.triggers     1.0

com.apple.iokit.IOAudioFamily     1.8.9fc10

com.apple.kext.OSvKernDSPLib     1.6

com.apple.iokit.IOSurface     86.0.3

com.apple.iokit.IOBluetoothFamily     4.0.9f33

com.apple.iokit.IOAcceleratorFamily     19.0.26

com.apple.kext.AMD6000Controller     8.0.0

com.apple.kext.AMDSupport     8.0.0

com.apple.iokit.AppleBluetoothHCIControllerUSBTransport     4.0.9f33

com.apple.driver.AppleSMBusPCI     1.0.10d0

com.apple.driver.AppleSMBusController     1.0.10d0

com.apple.iokit.IOFireWireIP     2.2.5

com.apple.driver.AppleHDAController     2.3.1f2

com.apple.iokit.IOHDAFamily     2.3.1f2

com.apple.driver.AppleGraphicsControl     3.2.11

com.apple.driver.AppleBacklightExpert     1.0.4

com.apple.iokit.IONDRVSupport     2.3.5

com.apple.iokit.IOGraphicsFamily     2.3.5

com.apple.driver.AppleSMC     3.1.4d2

com.apple.driver.IOPlatformPluginLegacy     1.0.0

com.apple.driver.IOPlatformPluginFamily     5.2.0d16

com.apple.driver.AppleThunderboltDPInAdapter     1.8.5

com.apple.driver.AppleThunderboltDPAdapterFamily     1.8.5

com.apple.driver.AppleThunderboltPCIDownAdapter     1.2.5

com.apple.driver.AppleUSBMultitouch     235.7

com.apple.iokit.IOUSBHIDDriver     5.2.5

com.apple.driver.AppleUSBMergeNub     5.2.5

com.apple.iokit.IOSCSIMultimediaCommandsDevice     3.5.1

com.apple.iokit.IOBDStorageFamily     1.7

com.apple.iokit.IODVDStorageFamily     1.7.1

com.apple.iokit.IOCDStorageFamily     1.7.1

com.apple.iokit.IOAHCISerialATAPI     2.5.0

com.apple.iokit.IOUSBUserClient     5.2.5

com.apple.driver.AppleThunderboltNHI     1.6.0

com.apple.iokit.IOThunderboltFamily     2.1.1

com.apple.iokit.IO80211Family     500.15

com.apple.iokit.IOEthernetAVBController     1.0.2b1

com.apple.iokit.IONetworkingFamily     3.0

com.apple.iokit.IOFireWireFamily     4.5.5

com.apple.iokit.IOAHCIFamily     2.2.1

com.apple.driver.AppleEFIRuntime     1.6.1

com.apple.iokit.IOHIDFamily     1.8.0

com.apple.iokit.IOSMBusFamily     1.1

com.apple.security.sandbox     220

com.apple.kext.AppleMatch     1.0.0d1

com.apple.security.TMSafetyNet     7

com.apple.driver.DiskImages     344

com.apple.driver.AppleKeyStore     28.21

com.apple.iokit.IOUSBMassStorageClass     3.5.0

com.apple.driver.AppleUSBComposite     5.2.5

com.apple.iokit.IOSCSIBlockCommandsDevice     3.5.1

com.apple.iokit.IOStorageFamily     1.8

com.apple.iokit.IOSCSIArchitectureModelFamily     3.5.1

com.apple.iokit.IOUSBFamily     5.4.0

com.apple.driver.AppleACPIPlatform     1.6

com.apple.iokit.IOPCIFamily     2.7.2

com.apple.iokit.IOACPIFamily     1.4

com.apple.kec.corecrypto     1.0

Model: MacBookPro8,2, BootROM MBP81.0047.B27, 4 processors, Intel Core i7, 2.2 GHz, 16 GB, SMC 1.69f3

Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 512 MB

Graphics: AMD Radeon HD 6750M, AMD Radeon HD 6750M, PCIe, 1024 MB

Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x029E, 0x434D5358384758334D314131363030433130

Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x029E, 0x434D5358384758334D314131363030433130

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (

Bluetooth: Version 4.0.9f33 10885, 2 service, 11 devices, 1 incoming serial ports

Network Service: AirPort, AirPort, en1

Network Service: Ethernet, Ethernet, en0

Serial ATA Device: TOSHIBA MK7559GSXF, 750,16 GB

Serial ATA Device: MAT****ADVD-R UJ-898

USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8509, 0xfa200000 / 3

USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfa100000 / 2

USB Device: USB Device, 0x09da (A-FOUR TECH CO., LTD.), 0x9090, 0xfa130000 / 6

USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 5

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821a, 0xfa113000 / 9

USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0246, 0xfa120000 / 4

USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfd100000 / 2

USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd110000 / 3


The thing is, my computer recognizes the ram ( 16gb 1600mhz ) and everything is so nice...only if i use the integrated graphic card...

Another important thing is : I have no problems if im using Windows 7 64bits with Bootcamp, i can play , watch movies , everything and it also recognizes 16gb 1600mhz.

I really need your help guys ! Because i only have a few days till i can exchange it with the Corsair Mac memory 16gb 1333mhz :/

Thanks in advance!

MacBook Pro, OS X Mountain Lion (10.8.2)
  • 1. Re: New 1600Mhz RAM = Kernel Panic , help please
    RuiLeao Level 1 Level 1 (0 points)

    If it also helps,


    Im on safe mode, watching videos on youtube for 30min already and there are no crashes at all...


    So it means that the problems are on the 3rd party software that i may have installed?

  • 2. Re: New 1600Mhz RAM = Kernel Panic , help please
    stedman1 Level 9 Level 9 (52,230 points)

    For clarification, which MacBook Pro do you have?

    Was the original RAM spec 1333mHz? If so, and you have installed 1600mHz RAM, that would be your problem.

  • 3. Re: New 1600Mhz RAM = Kernel Panic , help please
    OGELTHORPE Level 7 Level 7 (25,775 points)

    The correct Ram specifications for a 8.2 early 2011 15" MBP are:   204-pin PC-10600 (1333 MHz) DDR3 SO-DIMM.


    It seems that you installed incompatible RAM.  I suggest that you return it and get the appropriate RAM fr your MBP.



  • 4. Re: New 1600Mhz RAM = Kernel Panic , help please
    RuiLeao Level 1 Level 1 (0 points)

    I have a MacBook Pro (15-Inch, Early 2011)     MacBookPro8,2     

    15.4"/2.2 Quad-core i7/2x2GB/750-5400


    Well the original was 4gb 1333Mhz , but i saw a lot of ppl that updated their macbook 8,2 with the same 16gb 1600mhz Corsair Vengeance and they said that they are working 100%.

    And like i said, im on safe mode for almost 1h now and no kernel panics , using the dedicated graphics ! If i was doing this on the normal boot, i would get a kernel panic for sure.


    Any other suggestion? Thanks a lot for your reply stedman1

  • 5. Re: New 1600Mhz RAM = Kernel Panic , help please
    RuiLeao Level 1 Level 1 (0 points)

    Hi OGELTHORPE, thanks for your time aswell!


    Well, like i said to stedman1, i saw tons of topics with guys installing the same memory without any problem.

    Also, here you can check the max memory speed allowed for this i7 sandy bridge:


    http://ark.intel.com/products/50067/Intel-Core-i7-2720QM-Processor-6M-Cache-up-t o-3_30-GHz


    Thanks a lot guys,

    hope you have another suggestion!

  • 6. Re: New 1600Mhz RAM = Kernel Panic , help please
    OGELTHORPE Level 7 Level 7 (25,775 points)

    If you had the diagnostic tools to test the clock speed of the RAM in your MBP, I am willing to wager that it will be 1333 Hz.  I experimented with my 2011 and 2010 MBPs, installing the 1333 HZ RAM in the the 2010 MBP running 1066 Hz RAM.  The result was that the RAM was clocked down.  Hence no enhancement.


    If you wish your MBP to operate as intended, I suggest replacing the 1600 Hz RAM with RAM with the specifications I mentioned previously.



  • 7. Re: New 1600Mhz RAM = Kernel Panic , help please
    Csound1 Level 8 Level 8 (35,430 points)

    Replace the Ram with the correct Ram, I don't know what else to tell you, try putting the original Ram back in and then watching the videos that currently cause a crash.


    And FYI, there are 'lots' of people who put faster Ram in their machine and it didn't work, compared to the millions with no problems using the correct speed Ram 'lots' means nothing.

  • 8. Re: New 1600Mhz RAM = Kernel Panic , help please
    RuiLeao Level 1 Level 1 (0 points)

    I think that i finally fixed the problem!


    It was all about software. Just went to safe boot , deleted every app that i didnt need anymore. Then gfxstatuscard was helping my mac os to crash i think.

    The last and the most important thing that i did was delete those loaded kexts:

    com.vara.driver.VaraAudio     1.0.3

    net.telestream.driver.TelestreamAudio     1.0.5

    com.logmein.driver.LogMeInSoundDriver     1.0.0

    com.rim.driver.BlackBerryUSBDriverInt     0.0.67


    It could be the memory card, but since i was not having problems on safe mode, it was a software problem ( i hope ).

    Im now on normal mode , with both graphic cards having no problems. Im watching youtube videos for more than 20min already and for now not a single crash!


    Do you guys think that my problem is gone? I really hope so.

    Thanks a lot for your help guys! You re the best.