Frequent Kernel Panics on Snow Leopard 10.6.8

Frequent Kernel Panics on Snow Leopard 10.6.8

I recently bought a used MacbookPro5,1 with a 2,4 Ghz Core2Duo Processor.
It was upgraded to 4 GB of RAM and a 750GB HDD by the previous owner. When
I received it 2 days ago, it was running 10.6.3, I think. It worked
flawlessly for the first couple of hours. Then I downloaded the update to
10.6.8. No Problems. After that, it wanted to download and install even
more updates for iTunes, Java, and the like. During this update process
the Macbook had its first Kernel Panic. It was followed by 3 or 4 more
during the next couple hours, with no particular pattern. (Browsing the
web, gaming, etc.) I did run a memtest, and it crashed the first time I
was running it. However, I was doing other tasks at the same time. The
second time, I ran 2 memtests, with absolutely no problems. The last
Kernel Panic occurred while I tried to uninstall the Avast antivirus I had
installed, since I suspected it as a cause for the panics. After unistall,
I had no more panics. Yesterday, I used the Macbook for a couple of hours
without any problems. I spent a lot of the time playing a 3D game from the
app store. No problems. Then, another kernel panic while watching a
youtube video, and another a couple hours later while just browsing
facebook. I did another memtest, still nothing. I then uninstalled
firefox, thinking it might be the problem, since it was involved in most
of the panics. I was able to use the laptop for a couple of hours, and
then it had another panic while watching a video on safari...
Here is the most recent crash log from yesterday:
Mon Aug 12 00:37:58 2013
Machine-check capabilities (cpu 1) 0x0000000000000806:
family: 6 model: 23 stepping: 6 microcode: 1548
Intel(R) Core(TM)2 Duo CPU P8600 @ 2.40GHz
6 error-reporting banks
threshold-based error status present
Machine-check status 0x0000000000000004:
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x1000000000000000 invalid
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0xb62000050002010a valid
MCA error code: 0x010a
Model specific error code: 0x0002
Other information: 0x00000005
Threshold-based status: Green
Status bits:
Processor context corrupt
ADDR register valid
Error enabled
Uncorrected error
IA32_MC3_ADDR(0x40e): 0x00000000a5cce590
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xb200003008000e0f valid
MCA error code: 0x0e0f
Model specific error code: 0x0800
Other information: 0x00000030
Threshold-based status: No tracking
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
panic(cpu 1 caller 0x2aaeab): Machine Check thread:0x946f000, trapno:0x12,
err:0x0, registers:
CR0: 0x80010033, CR2: 0x0145f000, CR3: 0xa2359000, CR4: 0x00000660
RAX: 0x0000000000000003, RBX: 0x0000000000000165, RCX: 0x000000011de41d40,
RDX: 0x0000000000000380
RSP: 0x00007fff5fbfdbc0, RBP: 0x00007fff5fbfdbc0, RSI: 0x000000011de14aa0,
RDI: 0x000000012135c540
R8: 0x0000000000000370, R9: 0x000000000009b500, R10: 0x0000000000000360,
R11: 0x00007fff5fbfde20
R12: 0x0000000000026b80, R13: 0x000000011ddc7000, R14: 0x0000000000000163,
R15: 0x0000000000000380
RFL: 0x0000000000010206, RIP: 0x0000000113e37bbd, CR2: 0x000000010145f000
Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0x52bddf78 : 0x21b837 (0x5dd7fc 0x52bddfac 0x223ce1 0x0)
0x52bddfc8 : 0x2aaeab (0x59de64 0x59e0d1 0x946f000 0x12)
0x52bde0b8 : 0x2a29f2 (0x1 0xf 0x2135c540 0x1)
BSD process name corresponding to current thread: PluginProcess
Mac OS version:
10K549
Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun 7 16:33:36 PDT 2011;
root:xnu-1504.15.3~1/RELEASE_I386
System model name: MacBookPro5,1 (Mac-F42D86C8)
System uptime in nanoseconds: 6740727064321
unloaded kexts:
com.apple.driver.AppleFileSystemDriver 2.0 (addr 0x11f8000, size
0x12288) - last unloaded 94366220397
loaded kexts:
com.apple.driver.AppleHWSensor 1.9.3d0 - last loaded 10785646479
com.apple.filesystems.autofs 2.1.0
com.apple.driver.AGPM 100.12.31
com.apple.driver.AppleMikeyHIDDriver 1.2.0
com.apple.driver.AppleHDA 2.0.5f14
com.apple.driver.AppleUpstreamUserClient 3.5.7
com.apple.driver.AppleMCCSControl 1.0.20
com.apple.driver.AppleMikeyDriver 2.0.5f14
com.apple.driver.AudioAUUC 1.57
com.apple.kext.AppleSMCLMU 1.5.2d10
com.apple.driver.SMCMotionSensor 3.0.1d2
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AudioIPCDriver 1.1.6
com.apple.driver.AppleIntelPenrynProfile 17
com.apple.driver.ACPI_SMC_PlatformPlugin 4.7.0a1
com.apple.GeForce 6.3.6
com.apple.driver.AppleLPC 1.5.1
com.apple.driver.AppleGraphicsControl 2.10.6
com.apple.driver.AppleUSBTCButtons 201.6
com.apple.driver.AppleUSBTCKeyboard 201.6
com.apple.driver.AppleIRController 303.8
com.apple.iokit.SCSITaskUserClient 2.6.8
com.apple.iokit.IOAHCIBlockStorage 1.6.4
com.apple.driver.AppleHPET 1.5
com.apple.driver.AppleFWOHCI 4.7.3
com.apple.driver.AirPortBrcm43224 428.42.4
com.apple.driver.AppleUSBHub 4.2.4
com.apple.driver.AppleAHCIPort 2.1.7
com.apple.nvenet 2.0.17
com.apple.driver.AppleUSBEHCI 4.2.4
com.apple.driver.AppleUSBOHCI 4.2.0
com.apple.BootCache 31.1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.driver.AppleSmartBatteryManager 160.0.0
com.apple.driver.AppleEFINVRAM 1.4.0
com.apple.driver.AppleRTC 1.3.1
com.apple.driver.AppleACPIButtons 1.3.6
com.apple.driver.AppleSMBIOS 1.7
com.apple.driver.AppleACPIEC 1.3.6
com.apple.driver.AppleAPIC 1.4
com.apple.driver.AppleIntelCPUPowerManagementClient 142.6.0
com.apple.security.sandbox 1
com.apple.security.quarantine 0
com.apple.nke.applicationfirewall 2.1.14
com.apple.driver.AppleIntelCPUPowerManagement 142.6.0
com.apple.driver.DspFuncLib 2.0.5f14
com.apple.driver.AppleProfileReadCounterAction 17
com.apple.driver.AppleProfileTimestampAction 10
com.apple.driver.AppleProfileThreadInfoAction 14
com.apple.driver.AppleProfileRegisterStateAction 10
com.apple.driver.AppleProfileKEventAction 10
com.apple.driver.AppleProfileCallstackAction 20
com.apple.driver.AppleSMBusController 1.0.10d0
com.apple.nvidia.nv50hal 6.3.6
com.apple.iokit.IOFireWireIP 2.0.3
com.apple.iokit.IOSurface 74.2
com.apple.iokit.IOBluetoothSerialManager 2.4.5f3
com.apple.iokit.IOSerialFamily 10.0.3
com.apple.iokit.IOAudioFamily 1.8.3fc2
com.apple.kext.OSvKernDSPLib 1.3
com.apple.driver.AppleHDAController 2.0.5f14
com.apple.iokit.IOHDAFamily 2.0.5f14
com.apple.iokit.AppleProfileFamily 41
com.apple.driver.AppleSMC 3.1.0d5
com.apple.driver.IOPlatformPluginFamily 4.7.0a1
com.apple.driver.AppleSMBusPCI 1.0.10d0
com.apple.NVDAResman 6.3.6
com.apple.driver.AppleBacklightExpert 1.0.1
com.apple.iokit.IONDRVSupport 2.2.1
com.apple.iokit.IOGraphicsFamily 2.2.1
com.apple.driver.AppleUSBMultitouch 207.7
com.apple.iokit.IOUSBHIDDriver 4.2.0
com.apple.driver.BroadcomUSBBluetoothHCIController 2.4.5f3
com.apple.driver.AppleUSBBluetoothHCIController 2.4.5f3
com.apple.iokit.IOBluetoothFamily 2.4.5f3
com.apple.driver.AppleUSBMergeNub 4.2.4
com.apple.driver.AppleUSBComposite 3.9.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.6.8
com.apple.iokit.IOBDStorageFamily 1.6
com.apple.iokit.IODVDStorageFamily 1.6
com.apple.iokit.IOCDStorageFamily 1.6.1
com.apple.driver.XsanFilter 402.1
com.apple.iokit.IOAHCISerialATAPI 1.2.6
com.apple.iokit.IOSCSIArchitectureModelFamily 2.6.8
com.apple.iokit.IOFireWireFamily 4.2.6
com.apple.iokit.IO80211Family 320.1
com.apple.iokit.IOUSBUserClient 4.2.4
com.apple.iokit.IOAHCIFamily 2.0.6
com.apple.iokit.IOUSBFamily 4.2.4
com.apple.driver.NVSMU 2.2.7
com.apple.iokit.IONetworkingFamily 1.10
com.apple.driver.AppleEFIRuntime 1.4.0
com.apple.iokit.IOHIDFamily 1.6.6
com.apple.iokit.IOSMBusFamily 1.1
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 6
com.apple.driver.DiskImages 289.1
com.apple.iokit.IOStorageFamily 1.6.3
com.apple.driver.AppleACPIPlatform 1.3.6
com.apple.iokit.IOPCIFamily 2.6.5
com.apple.iokit.IOACPIFamily 1.3.0
I hope any of you guys can help me solve this problem. I really don't know
what to do. I really hope its not hardware related. If you need any more
information please tell me.
I already used Applejack and went through the whole process. After that, I
was able to use the Macbook for about 3 hours before going to sleep.
Today, after around an hour, it suddenly froze and restarted while
watching a youtube video.
At the moment, I cannot do a clean install of Snow Leopard, since I don't
have the discs yet. Any other suggestions on how to pinpoint the root of
evil?