Kernel panic kernel_task restart

Question

MBP 2009 13"Restarts under high load. E.g Unity3D project running or WoW or anything else.I cleaned the cooling system at a local service(in Russia) so it&#x27;s not a overheating problem(I guess)Did anybody have such a problem before?Anonymous UUID:       1B1431ED-D830-6B84-085D-127BC2DD25FCMon Mar 10 20:13:37 2014panic(cpu 0 caller 0xffffff8013edbe2e): Kernel trap at 0xffffff7f95e1867c, type 13&#x3D;general protection, registers:CR0: 0x000000008001003b, CR2: 0x0000000023cee000, CR3: 0x0000000016c41000, CR4: 0x0000000000000660RAX: 0x0fffffeebde70000, RBX: 0xffff007f95e3e9b0, RCX: 0x0000000000000000, RDX: 0x0000000000000114RSP: 0xffffff808c273d80, RBP: 0xffffff808c273e70, RSI: 0x0000013421960d26, RDI: 0xffffff8080a44148R8:  0x00000000e0000000, R9:  0x0000000000000004, R10: 0x0000000000004823, R11: 0xffffffffffffffffR12: 0xffffff801ef5b000, R13: 0x0000000000000004, R14: 0xffffff8080a44148, R15: 0xffffff7f95e3ce20RFL: 0x0000000000010006, RIP: 0xffffff7f95e1867c, CS:  0x0000000000000008, SS:  0x0000000000000010Fault CR2: 0x0000000023cee000, Error code: 0x0000000000000000, Fault CPU: 0x0Backtrace (CPU 0), Frame : Return Address0xffffff8080a4fc50 : 0xffffff8013e22fa9 0xffffff8080a4fcd0 : 0xffffff8013edbe2e 0xffffff8080a4fea0 : 0xffffff8013ef3326 0xffffff8080a4fec0 : 0xffffff7f95e1867c 0xffffff808c273e70 : 0xffffff7f95e17899 0xffffff808c273f30 : 0xffffff8013edd6ec 0xffffff808c273f50 : 0xffffff8013e375ba 0xffffff808c273f90 : 0xffffff8013e37908 0xffffff808c273fb0 : 0xffffff8013ed6ff7       Kernel Extensions in backtrace:         com.apple.driver.AppleIntelCPUPowerManagement(216.0)[70947979-EA9B-39D1-AD15-CD AB19F031AF]@0xffffff7f95e15000-&gt;0xffffff7f95e3ffffBSD process name corresponding to current thread: kernel_taskMac OS version:13C64Kernel version:Darwin Kernel Version 13.1.0: Thu Jan 16 19:40:37 PST 2014; root:xnu-2422.90.20~2/RELEASE_X86_64Kernel UUID: 9FEA8EDC-B629-3ED2-A1A3-6521A1885953Kernel slide:     0x0000000013c00000Kernel text base: 0xffffff8013e00000System model name: MacBookPro5,5 (Mac-F2268AC8)System uptime in nanoseconds: 1146913708319last loaded kext at 271903466798: com.apple.filesystems.msdosfs          1.9 (addr 0xffffff7f9620d000, size 65536)last unloaded kext at 333905672019: com.apple.filesystems.msdosfs          1.9 (addr 0xffffff7f9620d000, size 57344)loaded kexts:com.apple.driver.AudioAUUC          1.60com.apple.driver.AppleHWSensor          1.9.5d0com.apple.driver.AGPM          100.14.15com.apple.filesystems.autofs          3.0com.apple.iokit.IOBluetoothSerialManager          4.2.3f10com.apple.driver.AppleMikeyHIDDriver          124com.apple.driver.AppleMikeyDriver          2.6.0f1com.apple.driver.AppleHDA          2.6.0f1com.apple.iokit.IOUserEthernet          1.0.0d1com.apple.driver.AppleLPC          1.7.0com.apple.driver.AppleUpstreamUserClient          3.5.13com.apple.GeForceTesla          8.2.4com.apple.driver.AppleSMCLMU          2.0.4d1com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0com.apple.Dont_Steal_Mac_OS_X          7.0.0com.apple.driver.AppleHWAccess          1com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.2.3f10com.apple.driver.AppleBacklight          170.3.5com.apple.driver.AppleMCCSControl          1.1.12com.apple.driver.SMCMotionSensor          3.0.4d1com.apple.driver.AppleUSBTCButtons          240.2com.apple.driver.AppleUSBTCKeyboard          240.2com.apple.driver.AppleIRController          325.7com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1com.apple.BootCache          35com.apple.driver.AppleUSBCardReader          3.4.1com.apple.iokit.SCSITaskUserClient          3.6.6com.apple.driver.XsanFilter          404com.apple.iokit.IOAHCIBlockStorage          2.5.1com.apple.driver.AppleFWOHCI          4.9.9com.apple.driver.AppleUSBHub          666.4.0com.apple.driver.AirPort.Brcm4331          700.20.22com.apple.driver.AppleAHCIPort          3.0.0com.apple.nvenet          2.0.21com.apple.driver.AppleUSBOHCI          656.4.1com.apple.driver.AppleUSBEHCI          660.4.0com.apple.driver.AppleSmartBatteryManager          161.0.0com.apple.driver.AppleRTC          2.0com.apple.driver.AppleHPET          1.8com.apple.driver.AppleACPIButtons          2.0com.apple.driver.AppleSMBIOS          2.1com.apple.driver.AppleACPIEC          2.0com.apple.driver.AppleAPIC          1.7com.apple.driver.AppleIntelCPUPowerManagementClient          216.0.0com.apple.nke.applicationfirewall          153com.apple.security.quarantine          3com.apple.driver.AppleIntelCPUPowerManagement          216.0.0com.apple.AppleGraphicsDeviceControl          3.4.35com.apple.kext.triggers          1.0com.apple.iokit.IOSerialFamily          10.0.7com.apple.driver.DspFuncLib          2.6.0f1com.apple.vecLib.kext          1.0.0com.apple.iokit.IOAudioFamily          1.9.5fc2com.apple.kext.OSvKernDSPLib          1.14com.apple.nvidia.classic.NVDANV50HalTesla          8.2.4com.apple.nvidia.classic.NVDAResmanTesla          8.2.4com.apple.driver.IOPlatformPluginLegacy          1.0.0com.apple.driver.IOPlatformPluginFamily          5.7.0d10com.apple.driver.AppleSMBusPCI          1.0.12d1com.apple.iokit.IOSurface          91com.apple.iokit.IOBluetoothFamily          4.2.3f10com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.2.3f10com.apple.iokit.IOFireWireIP          2.2.6com.apple.driver.AppleHDAController          2.6.0f1com.apple.iokit.IOHDAFamily          2.6.0f1com.apple.driver.AppleBacklightExpert          1.0.4com.apple.driver.AppleSMBusController          1.0.11d1com.apple.iokit.IONDRVSupport          2.4.1com.apple.iokit.IOGraphicsFamily          2.4.1com.apple.driver.AppleSMC          3.1.8com.apple.driver.AppleUSBMultitouch          240.9com.apple.iokit.IOUSBHIDDriver          660.4.0com.apple.iokit.IOSCSIBlockCommandsDevice          3.6.6com.apple.iokit.IOUSBMassStorageClass          3.6.0com.apple.driver.AppleUSBMergeNub          650.4.0com.apple.driver.AppleUSBComposite          656.4.1com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.6.6com.apple.iokit.IOBDStorageFamily          1.7com.apple.iokit.IODVDStorageFamily          1.7.1com.apple.iokit.IOCDStorageFamily          1.7.1com.apple.iokit.IOAHCISerialATAPI          2.6.1com.apple.iokit.IOSCSIArchitectureModelFamily          3.6.6com.apple.iokit.IOFireWireFamily          4.5.5com.apple.iokit.IOUSBUserClient          660.4.2com.apple.iokit.IO80211Family          630.35com.apple.iokit.IOAHCIFamily          2.6.5com.apple.iokit.IONetworkingFamily          3.2com.apple.iokit.IOUSBFamily          675.4.0com.apple.driver.NVSMU          2.2.9com.apple.driver.AppleEFINVRAM          2.0com.apple.driver.AppleEFIRuntime          2.0com.apple.iokit.IOHIDFamily          2.0.0com.apple.iokit.IOSMBusFamily          1.1com.apple.security.sandbox          278.11com.apple.kext.AppleMatch          1.0.0d1com.apple.security.TMSafetyNet          7com.apple.driver.AppleKeyStore          2com.apple.driver.DiskImages          371.1com.apple.iokit.IOStorageFamily          1.9com.apple.iokit.IOReportFamily          23com.apple.driver.AppleFDEKeyStore          28.30com.apple.driver.AppleACPIPlatform          2.0com.apple.iokit.IOPCIFamily          2.9com.apple.iokit.IOACPIFamily          1.4com.apple.kec.pthread          1com.apple.kec.corecrypto          1.0Model: MacBookPro5,5, BootROM MBP55.00AC.B03, 2 processors, Intel Core 2 Duo, 2.26 GHz, 4 GB, SMC 1.47f2Graphics: NVIDIA GeForce 9400M, NVIDIA GeForce 9400M, PCI, 256 MBMemory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x0198, 0x393955353432382D3031312E4130304C4620Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x0198, 0x393955353432382D3031312E4130304C4620AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8D), Broadcom BCM43xx 1.0 (5.106.98.100.22)Bluetooth: Version 4.2.3f10 13477, 3 services, 15 devices, 1 incoming serial portsNetwork Service: Wi-Fi, AirPort, en1Serial ATA Device: FUJITSU MJA2160BH FFS G1, 160.04 GBSerial ATA Device: MATSHITADVD-R   UJ-868USB Device: Built-in iSightUSB Device: Internal Memory Card ReaderUSB Device: Apple Internal Keyboard / TrackpadUSB Device: IR ReceiverUSB Device: BRCM2046 HubUSB Device: Bluetooth USB Host ControllerThunderbolt Bus:

stedman1 · Accepted Answer

Have you upgraded the RAM in the computer?You computer requires RAM as shown below.8.0 GBMemory Slots     2 - 204-pin PC3-8500 (1066 MHz) DDR3 SO-DIMM

clintonfrombirmingham · Answer

You have the wrong speed RAM installed in your machine - you have 1333MHz installed while yoru machine&#x27;s specifications are for 1066MHz RAM.It&#x27;s the incorrect RAM that&#x27;s causing your kernel panics. I&#x27;m not sure where you purchsed it but GOOD RAM has a limited lifetime warranty and you should be able to get replacement RAM that is right for your machine.Clinton

Npenzin · Answer

It seems you were wrong : I was just watching some YouTube whe it restarted again. Nothing extra-highload. Low quality video. But y-day I was watching an HD one and there were no any random restart.I hope full reinstalling OS X will fix that.Any ideas? Except changing RAMAnonymous UUID:       1B1431ED-D830-6B84-085D-127BC2DD25FCTue Mar 11 00:16:58 2014panic(cpu 0 caller 0xffffff80070dbe2e): Kernel trap at 0xffffff7f891bc5d7, type 14&#x3D;page fault, registers:CR0: 0x0000000080010033, CR2: 0xffffef8015100bc0, CR3: 0x000000006d8fa000, CR4: 0x0000000000000660RAX: 0xffffff801873fb20, RBX: 0x0000000000000000, RCX: 0xffffff80137faf00, RDX: 0x0000000000001ab4RSP: 0xffffff800ed2bb50, RBP: 0xffffff800ed2bb70, RSI: 0x0000000000000000, RDI: 0xffffef8015100bc0R8:  0x0000000000000002, R9:  0x0000000000000000, R10: 0x0000000000000020, R11: 0x0000000000000020R12: 0xffffff8013838600, R13: 0x0000000000001ab4, R14: 0x0000000000000000, R15: 0xffffff8015101a00RFL: 0x0000000000010286, RIP: 0xffffff7f891bc5d7, CS:  0x0000000000000008, SS:  0x0000000000000010Fault CR2: 0xffffef8015100bc0, Error code: 0x0000000000000000, Fault CPU: 0x0Backtrace (CPU 0), Frame : Return Address0xffffff800ed2b7e0 : 0xffffff8007022fa9 0xffffff800ed2b860 : 0xffffff80070dbe2e 0xffffff800ed2ba30 : 0xffffff80070f3326 0xffffff800ed2ba50 : 0xffffff7f891bc5d7 0xffffff800ed2bb70 : 0xffffff7f891d4369 0xffffff800ed2bbc0 : 0xffffff7f891b9bef 0xffffff800ed2bc80 : 0xffffff7f8928b0b0 0xffffff800ed2bce0 : 0xffffff7f8928b3bb 0xffffff800ed2bd80 : 0xffffff7f89156998 0xffffff800ed2bdd0 : 0xffffff7f8915678b 0xffffff800ed2bdf0 : 0xffffff7f891565a9 0xffffff800ed2be60 : 0xffffff7f89151c28 0xffffff800ed2bef0 : 0xffffff7f891519c7 0xffffff800ed2bf30 : 0xffffff80074cda9e 0xffffff800ed2bf70 : 0xffffff80070c976d 0xffffff800ed2bfb0 : 0xffffff80070f3b46       Kernel Extensions in backtrace:         com.apple.iokit.IOAudioFamily(1.9.5f2)[F387BB55-BB36-3C51-8BF5-3A957E30D539]@0x ffffff7f89147000-&gt;0xffffff7f89175fff            dependency: com.apple.kext.OSvKernDSPLib(1.14)[7C60EDB3-7527-3412-B424-C9A667A65B92]@0xffff ff7f89135000         com.apple.driver.DspFuncLib(2.6f1)[431D4296-5C15-37D1-B73A-8679C89F1C47]@0xffff ff7f891a5000-&gt;0xffffff7f89271fff            dependency: com.apple.vecLib.kext(1.0.0)[3DB9AEA5-1A08-36B0-9124-6AD6C61AC452]@0xffffff7f89 176000            dependency: com.apple.kext.OSvKernDSPLib(1.14)[7C60EDB3-7527-3412-B424-C9A667A65B92]@0xffff ff7f89135000            dependency: com.apple.iokit.IOAudioFamily(1.9.5fc2)[F387BB55-BB36-3C51-8BF5-3A957E30D539]@0 xffffff7f89147000         com.apple.driver.AppleHDA(2.6f1)[6E9414B6-A952-3A0B-9467-DEFB73D82EAE]@0xffffff 7f89272000-&gt;0xffffff7f89301fff            dependency: com.apple.driver.AppleHDAController(2.6.0f1)[75C89447-A390-3C8C-9189-3074B972B3 FD]@0xffffff7f88fe3000            dependency: com.apple.iokit.IONDRVSupport(2.4.1)[999E29DA-D513-3544-89D1-9885B728A098]@0xff ffff7f879d3000            dependency: com.apple.iokit.IOAudioFamily(1.9.5fc2)[F387BB55-BB36-3C51-8BF5-3A957E30D539]@0 xffffff7f89147000            dependency: com.apple.iokit.IOHDAFamily(2.6.0f1)[CD4775FA-9A34-309D-A5AC-A307E4F82FDA]@0xff ffff7f88fd4000            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f87990000            dependency: com.apple.driver.DspFuncLib(2.6.0f1)[431D4296-5C15-37D1-B73A-8679C89F1C47]@0xff ffff7f891a5000BSD process name corresponding to current thread: coreaudiodMac OS version:13C64Kernel version:Darwin Kernel Version 13.1.0: Thu Jan 16 19:40:37 PST 2014; root:xnu-2422.90.20~2/RELEASE_X86_64Kernel UUID: 9FEA8EDC-B629-3ED2-A1A3-6521A1885953Kernel slide:     0x0000000006e00000Kernel text base: 0xffffff8007000000System model name: MacBookPro5,5 (Mac-F2268AC8)System uptime in nanoseconds: 5749166795837last loaded kext at 779572933579: com.apple.driver.AppleIntelMCEReporter          104 (addr 0xffffff7f89358000, size 49152)last unloaded kext at 846468339358: com.apple.driver.AppleIntelMCEReporter          104 (addr 0xffffff7f89358000, size 32768)loaded kexts:com.apple.filesystems.smbfs          2.0.1com.apple.driver.AppleHWSensor          1.9.5d0com.apple.driver.AudioAUUC          1.60com.apple.driver.AGPM          100.14.15com.apple.driver.AppleMikeyHIDDriver          124com.apple.driver.AppleHDA          2.6.0f1com.apple.filesystems.autofs          3.0com.apple.iokit.IOBluetoothSerialManager          4.2.3f10com.apple.driver.AppleUpstreamUserClient          3.5.13com.apple.GeForceTesla          8.2.4com.apple.driver.AppleMikeyDriver          2.6.0f1com.apple.iokit.IOUserEthernet          1.0.0d1com.apple.Dont_Steal_Mac_OS_X          7.0.0com.apple.driver.AppleHWAccess          1com.apple.driver.AppleBacklight          170.3.5com.apple.driver.AppleMCCSControl          1.1.12com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.2.3f10com.apple.driver.AppleSMCLMU          2.0.4d1com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0com.apple.driver.AppleLPC          1.7.0com.apple.driver.SMCMotionSensor          3.0.4d1com.apple.driver.AppleUSBTCButtons          240.2com.apple.driver.AppleUSBTCKeyboard          240.2com.apple.driver.AppleIRController          325.7com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1com.apple.BootCache          35com.apple.driver.AppleUSBCardReader          3.4.1com.apple.iokit.SCSITaskUserClient          3.6.6com.apple.driver.XsanFilter          404com.apple.iokit.IOAHCIBlockStorage          2.5.1com.apple.driver.AirPort.Brcm4331          700.20.22com.apple.driver.AppleUSBHub          666.4.0com.apple.driver.AppleFWOHCI          4.9.9com.apple.driver.AppleAHCIPort          3.0.0com.apple.nvenet          2.0.21com.apple.driver.AppleUSBEHCI          660.4.0com.apple.driver.AppleUSBOHCI          656.4.1com.apple.driver.AppleSmartBatteryManager          161.0.0com.apple.driver.AppleRTC          2.0com.apple.driver.AppleHPET          1.8com.apple.driver.AppleACPIButtons          2.0com.apple.driver.AppleSMBIOS          2.1com.apple.driver.AppleACPIEC          2.0com.apple.driver.AppleAPIC          1.7com.apple.driver.AppleIntelCPUPowerManagementClient          216.0.0com.apple.nke.applicationfirewall          153com.apple.security.quarantine          3com.apple.driver.AppleIntelCPUPowerManagement          216.0.0com.apple.AppleGraphicsDeviceControl          3.4.35com.apple.driver.DspFuncLib          2.6.0f1com.apple.vecLib.kext          1.0.0com.apple.iokit.IOAudioFamily          1.9.5fc2com.apple.kext.OSvKernDSPLib          1.14com.apple.kext.triggers          1.0com.apple.iokit.IOSerialFamily          10.0.7com.apple.nvidia.classic.NVDANV50HalTesla          8.2.4com.apple.driver.AppleHDAController          2.6.0f1com.apple.iokit.IOHDAFamily          2.6.0f1com.apple.nvidia.classic.NVDAResmanTesla          8.2.4com.apple.iokit.IOSurface          91com.apple.iokit.IOBluetoothFamily          4.2.3f10com.apple.driver.AppleBacklightExpert          1.0.4com.apple.driver.AppleSMBusController          1.0.11d1com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.2.3f10com.apple.iokit.IOFireWireIP          2.2.6com.apple.driver.IOPlatformPluginLegacy          1.0.0com.apple.driver.AppleSMBusPCI          1.0.12d1com.apple.driver.IOPlatformPluginFamily          5.7.0d10com.apple.iokit.IONDRVSupport          2.4.1com.apple.iokit.IOGraphicsFamily          2.4.1com.apple.driver.AppleSMC          3.1.8com.apple.driver.AppleUSBMultitouch          240.9com.apple.iokit.IOUSBHIDDriver          660.4.0com.apple.iokit.IOSCSIBlockCommandsDevice          3.6.6com.apple.iokit.IOUSBMassStorageClass          3.6.0com.apple.driver.AppleUSBMergeNub          650.4.0com.apple.driver.AppleUSBComposite          656.4.1com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.6.6com.apple.iokit.IOBDStorageFamily          1.7com.apple.iokit.IODVDStorageFamily          1.7.1com.apple.iokit.IOCDStorageFamily          1.7.1com.apple.iokit.IOAHCISerialATAPI          2.6.1com.apple.iokit.IOSCSIArchitectureModelFamily          3.6.6com.apple.iokit.IO80211Family          630.35com.apple.iokit.IOUSBUserClient          660.4.2com.apple.iokit.IOFireWireFamily          4.5.5com.apple.iokit.IOAHCIFamily          2.6.5com.apple.iokit.IONetworkingFamily          3.2com.apple.iokit.IOUSBFamily          675.4.0com.apple.driver.NVSMU          2.2.9com.apple.driver.AppleEFINVRAM          2.0com.apple.driver.AppleEFIRuntime          2.0com.apple.iokit.IOHIDFamily          2.0.0com.apple.iokit.IOSMBusFamily          1.1com.apple.security.sandbox          278.11com.apple.kext.AppleMatch          1.0.0d1com.apple.security.TMSafetyNet          7com.apple.driver.AppleKeyStore          2com.apple.driver.DiskImages          371.1com.apple.iokit.IOStorageFamily          1.9com.apple.iokit.IOReportFamily          23com.apple.driver.AppleFDEKeyStore          28.30com.apple.driver.AppleACPIPlatform          2.0com.apple.iokit.IOPCIFamily          2.9com.apple.iokit.IOACPIFamily          1.4com.apple.kec.corecrypto          1.0com.apple.kec.pthread          1Model: MacBookPro5,5, BootROM MBP55.00AC.B03, 2 processors, Intel Core 2 Duo, 2.26 GHz, 4 GB, SMC 1.47f2Graphics: NVIDIA GeForce 9400M, NVIDIA GeForce 9400M, PCI, 256 MBMemory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x0198, 0x393955353432382D3031312E4130304C4620Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x0198, 0x393955353432382D3031312E4130304C4620AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8D), Broadcom BCM43xx 1.0 (5.106.98.100.22)Bluetooth: Version 4.2.3f10 13477, 3 services, 15 devices, 1 incoming serial portsNetwork Service: Wi-Fi, AirPort, en1Serial ATA Device: FUJITSU MJA2160BH FFS G1, 160.04 GBSerial ATA Device: MATSHITADVD-R   UJ-868USB Device: USB to Serial-ATA bridgeUSB Device: Built-in iSightUSB Device: Internal Memory Card ReaderUSB Device: Apple Internal Keyboard / TrackpadUSB Device: IR ReceiverUSB Device: BRCM2046 HubUSB Device: Bluetooth USB Host ControllerThunderbolt Bus:

Npenzin · Answer

If it won&#x27;t bother you that much could add anything else? And please check my second post.Thanks in advance

stedman1 · Answer

Again, have you upgraded the RAM? Yes? The crash report indicates you have the incorrect spec RAM for that model. Nothing more to add

Npenzin · Answer

Yes. I upgraded. But when it was on 10.6 everything was just fine. How could you explain that? Do you mean Mavericks cares?

Donald Morgan · Answer

To avoid your Ram issues it is a good idea to by from thhe best that also sells the top of the line in Ram for Macs.http://www.crucial.comIf you so choose they have an app you can download that will scan your computer and tell you exactly what you need.2nd this is also one of the 2 top of the line when it comes to Ram for your Mac.http://eshop.macsales.com/shop/apple/memory/Buying and using either one of these will solve your Problem.CheersDonI almost forgot take the ram you bought out and take it back. My guess is they will balk when you try to get your money back.Either of the links I provided there Ram is 100% guaranteed.