Sudden repetitive Kernel Panic | Mac Pro

Question

Hi thereToday my Mac Pro has crashed repetitively while booting (during the grey and the blue screen) and after booting out of elementary finder actions (opening windows, moving windows). The crashs occur at the latest 10 minutes after a succesful boot!What I&#x27;ve done so far (without success):- Reset PRAM- Reset SCM- Booting from the MAC Pro Install CD (crashes also after some time)Thanks for your ideasboblimaHere are the last tow Panic Reports:N1:Interval Since Last Panic Report:  181073 secPanics Since Last Report:          4Anonymous UUID:                    4ED6006B-1E42-47DE-9FA0-63BFEE0DCC7ETue Jun  7 16:46:03 2011Machine-check capabilities (cpu 0) 0x0000000000000806:family: 6 model: 23 stepping: 6 microcode: 1547Intel(R) Xeon(R) CPU           E5462  @ 2.80GHz6 error-reporting banksthreshold-based error status presentMachine-check status 0x0000000000000005:restart IP validmachine-check in progressMCA error-reporting registers:IA32_MC0_STATUS(0x401): 0x1000000020000000 invalidIA32_MC1_STATUS(0x405): 0x0000000000000000 invalidIA32_MC2_STATUS(0x409): 0x0000000000000000 invalidIA32_MC3_STATUS(0x40d): 0x0020000000000000 invalidIA32_MC4_STATUS(0x411): 0x0000000000000011 invalidIA32_MC5_STATUS(0x415): 0xb200001084200e0f valid  MCA error code:            0x0e0f  Model specific error code: 0x8420  Other information:         0x00000010  Threshold-based status:    No tracking  Status bits:   Processor context corrupt   Error enabled   Uncorrected errorpanic(cpu 7 caller 0x2a9d27): Machine Check at 0x844d958d, thread:0x15e67b7c, trapno:0x12, err:0x0,registers:CR0: 0x8001003b, CR2: 0x00003188, CR3: 0x00100000, CR4: 0x00000660EAX: 0x00000000, EBX: 0x159f7ec0, ECX: 0x00000001, EDX: 0x00000000ESP: 0x84773c20, EBP: 0x84773c58, ESI: 0x15ca1800, EDI: 0x844e4388EFL: 0x00000086, EIP: 0x844d958dBacktrace (CPU 7), Frame : Return Address (4 potential args on stack)0x845b1fb8 : 0x21b50c (0x5d42fc 0x845b1fec 0x223974 0x0) 0x845b2008 : 0x2a9d27 (0x595e34 0x595f21 0x844d958d 0x15e67b7c) 0x845b20f8 : 0x2a1912 (0x1 0x0 0x0 0x0) 0x84773c58 : 0x844cefc0 (0x8441d0a4 0x1 0x15ca1800 0x0) 0x84773d48 : 0x844d051c (0xa8073aa6 0x80000008 0x0 0x0) 0x84773e08 : 0x2abb32 (0xffffffff 0x7fffffff 0x84773e48 0x84426000) 0x84773e28 : 0x22584d (0x8442649c 0xa8073811 0x8 0x84426488) 0x84773e88 : 0x22661f (0x1 0x15e67b7c 0x15de8c58 0x0) 0x84773ef8 : 0x227243 (0x15e67b98 0x15e67b98 0x84773f58 0x2329f0) 0x84773f68 : 0x2272c4 (0x54b94c 0x15a4a180 0x0 0x84426000) 0x84773f88 : 0x54ba08 (0x54b94c 0x15a4a180 0x84773fc8 0x84426000) 0x84773fc8 : 0x2a06cc (0x15a4a180 0x0 0x10 0x17d86184)       Kernel Extensions in backtrace (with dependencies):         com.apple.driver.AppleIntelCPUPowerManagement(105.13.0)@0x844cd000-&gt;0x844eafffBSD process name corresponding to current thread: kernel_taskMac OS version:10H574Kernel version:Darwin Kernel Version 10.5.0: Fri Nov  5 23:20:39 PDT 2010; root:xnu-1504.9.17~1/RELEASE_I386System model name: MacPro3,1 (Mac-F42C88C8)System uptime in nanoseconds: 37179022528unloaded kexts:(none)loaded kexts:com.paceap.kext.pacesupport.snowleopard          5.7.2com.Cycling74.driver.Soundflower          1.4.2com.screenrecycler.driver.ScreenRecyclerDriver          0.9.5com.apple.driver.AppleHWSensor          1.9.3d0 - last loaded 30868808053com.apple.filesystems.autofs          2.1.0com.apple.driver.InternalModemSupport          2.6.2com.apple.driver.AppleBluetoothMultitouch          54com.apple.driver.AppleTyMCEDriver          1.0.2d2com.apple.driver.AudioAUUC          1.13com.apple.Dont_Steal_Mac_OS_X          7.0.0com.apple.driver.AppleUpstreamUserClient          3.4.5com.apple.driver.AppleIntelYonahProfile          14com.apple.driver.AppleMCCSControl          1.0.17com.apple.driver.AppleIntelPenrynProfile          17com.apple.GeForce          6.2.4com.apple.driver.AppleIntelNehalemProfile          11com.apple.driver.AudioIPCDriver          1.1.6com.apple.driver.AppleHDA          1.9.9f12com.apple.driver.AppleUSBDisplays          283com.apple.driver.AppleIntelMeromProfile          19com.apple.driver.AppleMCEDriver          1.1.9com.apple.driver.ACPI_SMC_PlatformPlugin          4.5.0d5com.apple.driver.AppleLPC          1.4.12com.apple.driver.AppleIntel8254XEthernet          2.1.1b7com.apple.driver.CSRHIDTransitionDriver          2.3.8f7com.apple.iokit.SCSITaskUserClient          2.6.5com.apple.driver.PioneerSuperDrive          2.5.8com.apple.driver.AppleRAID          4.0.6com.apple.BootCache          31com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1com.apple.driver.AppleUSBHub          4.1.7com.apple.iokit.IOAHCIBlockStorage          1.6.3com.apple.driver.AppleFWOHCI          4.7.1com.apple.driver.AppleUSBEHCI          4.1.7com.apple.driver.AppleAHCIPort          2.1.5com.apple.driver.AppleIntelPIIXATA          2.5.1com.apple.driver.AppleEFINVRAM          1.4.0com.apple.driver.AppleUSBUHCI          4.1.5com.apple.driver.AppleACPIButtons          1.3.5com.apple.driver.AppleRTC          1.3.1com.apple.driver.AppleHPET          1.5com.apple.driver.AppleSMBIOS          1.6com.apple.driver.AppleACPIEC          1.3.5com.apple.driver.AppleAPIC          1.4com.apple.driver.AppleIntelCPUPowerManagementClient          105.13.0com.apple.security.sandbox          1com.apple.security.quarantine          0com.apple.nke.applicationfirewall          2.1.11com.apple.driver.AppleIntelCPUPowerManagement          105.13.0com.apple.driver.IOBluetoothHIDDriver          2.3.8f7com.apple.driver.AppleMultitouchDriver          207.10com.apple.driver.AppleHDAPlatformDriver          1.9.9f12com.apple.driver.AppleProfileReadCounterAction          17com.apple.driver.AppleProfileTimestampAction          10com.apple.driver.AppleProfileThreadInfoAction          14com.apple.driver.AppleProfileRegisterStateAction          10com.apple.driver.AppleProfileKEventAction          10com.apple.driver.AppleProfileCallstackAction          20com.apple.iokit.IOSurface          74.2com.apple.iokit.IOBluetoothSerialManager          2.3.8f7com.apple.iokit.IOSerialFamily          10.0.3com.apple.driver.AppleHDAHardwareConfigDriver          1.9.9f12com.apple.driver.DspFuncLib          1.9.9f12com.apple.nvidia.nv50hal          6.2.4com.apple.NVDAResman          6.2.4com.apple.iokit.IONDRVSupport          2.2com.apple.iokit.IOFireWireIP          2.0.3com.apple.driver.AppleUSBAudio          2.7.6f4com.apple.iokit.IOAudioFamily          1.7.9fc4com.apple.kext.OSvKernDSPLib          1.3com.apple.iokit.AppleProfileFamily          41com.apple.driver.AppleSMC          3.1.0d3com.apple.driver.IOPlatformPluginFamily          4.5.0d5com.apple.driver.AppleHDAController          1.9.9f12com.apple.iokit.IOGraphicsFamily          2.2com.apple.iokit.IOHDAFamily          1.9.9f12com.apple.iokit.IONetworkingFamily          1.10com.apple.driver.CSRUSBBluetoothHCIController          2.3.8f7com.apple.driver.AppleUSBBluetoothHCIController          2.3.8f7com.apple.iokit.IOBluetoothFamily          2.3.8f7com.apple.driver.AppleUSBHIDKeyboard          141com.apple.iokit.IOUSBHIDDriver          4.1.5com.apple.driver.AppleHIDKeyboard          141com.apple.driver.AppleUSBMergeNub          4.1.5com.apple.iokit.IOSCSIBlockCommandsDevice          2.6.5com.apple.iokit.IOUSBMassStorageClass          2.6.5com.apple.driver.AppleUSBComposite          3.9.0com.apple.iokit.IOSCSIMultimediaCommandsDevice          2.6.5com.apple.iokit.IOBDStorageFamily          1.6com.apple.iokit.IODVDStorageFamily          1.6com.apple.iokit.IOCDStorageFamily          1.6com.apple.driver.XsanFilter          402.1com.apple.iokit.IOATAPIProtocolTransport          2.5.1com.apple.iokit.IOSCSIArchitectureModelFamily          2.6.5com.apple.driver.AppleFileSystemDriver          2.0com.apple.iokit.IOUSBUserClient          4.1.5com.apple.iokit.IOFireWireFamily          4.2.6com.apple.iokit.IOAHCIFamily          2.0.4com.apple.iokit.IOATAFamily          2.5.1com.apple.iokit.IOUSBFamily          4.1.7com.apple.driver.AppleEFIRuntime          1.4.0com.apple.iokit.IOHIDFamily          1.6.5com.apple.iokit.IOSMBusFamily          1.1com.apple.security.TMSafetyNet          6com.apple.kext.AppleMatch          1.0.0d1com.apple.driver.DiskImages          289com.apple.iokit.IOStorageFamily          1.6.2com.apple.driver.AppleACPIPlatform          1.3.5com.apple.iokit.IOPCIFamily          2.6com.apple.iokit.IOACPIFamily          1.3.0Model: MacPro3,1, BootROM MP31.006C.B05, 8 processors, Quad-Core Intel Xeon, 2.8 GHz, 16 GB, SMC 1.25f4Graphics: NVIDIA GeForce 8800 GT, NVIDIA GeForce 8800 GT, PCIe, 512 MBMemory Module: global_nameBluetooth: Version 2.3.8f7, 2 service, 19 devices, 1 incoming serial portsPCI Card: NVIDIA GeForce 8800 GT, Display, Slot-1Serial ATA Device: SAMSUNG HD103UJ, 931.51 GBSerial ATA Device: SAMSUNG HD103UJ, 931.51 GBSerial ATA Device: SAMSUNG HD103UJ, 931.51 GBSerial ATA Device: SAMSUNG HD103UJ, 931.51 GBParallel ATA Device: PIONEER DVD-RW  DVR-112D, 7.91 GBUSB Device: Ext HDD 1021, 0x1058  (Western Digital Technologies, Inc.), 0x1021, 0xfd300000USB Device: STORE N GO, 0x13fe  (Phison Electronics Corp.), 0x1e23, 0xfd100000USB Device: Bluetooth USB Host Controller, 0x05ac  (Apple Inc.), 0x8206, 0x5d200000USB Device: Hub, 0x05ac  (Apple Inc.), 0x9102, 0x5d100000USB Device: Hub, 0x05ac  (Apple Inc.), 0x9118, 0x5d110000USB Device: Hub, 0x0409  (NEC Corporation), 0x005a, 0x5d112000USB Device: USB Uno MIDI Interface, 0x0763  (M-Audio), 0x0150, 0x5d112100USB Device: Hub, 0x0409  (NEC Corporation), 0x005a, 0x5d112400USB Device: ProtectExecuter, 0x0819, 0x0101, 0x5d112430USB Device: iLok, 0x088e, 0x5036, 0x5d112410USB Device: Studio Display, 0x05ac  (Apple Inc.), 0x9218, 0x5d113000USB Device: Keyboard Hub, 0x05ac  (Apple Inc.), 0x1006, 0x5d111000USB Device: Apple Keyboard, 0x05ac  (Apple Inc.), 0x0221, 0x5d111200USB Device: Akai MPD24, 0x09e8, 0x0068, 0x1d200000FireWire Device: built-in_hub, Up to 800 Mb/secN2:Interval Since Last Panic Report:  181072 secPanics Since Last Report:          3Anonymous UUID:                    4ED6006B-1E42-47DE-9FA0-63BFEE0DCC7ETue Jun  7 16:38:02 2011Machine-check capabilities (cpu 0) 0x0000000000000806:family: 6 model: 23 stepping: 6 microcode: 1547Intel(R) Xeon(R) CPU           E5462  @ 2.80GHz6 error-reporting banksthreshold-based error status presentMachine-check status 0x0000000000000005:restart IP validmachine-check in progressMCA error-reporting registers:IA32_MC0_STATUS(0x401): 0x1000000020000000 invalidIA32_MC1_STATUS(0x405): 0x0000000000000000 invalidIA32_MC2_STATUS(0x409): 0x0000000000000000 invalidIA32_MC3_STATUS(0x40d): 0x0020000000000000 invalidIA32_MC4_STATUS(0x411): 0x0000000000000011 invalidIA32_MC5_STATUS(0x415): 0xb200001084200e0f valid  MCA error code:            0x0e0f  Model specific error code: 0x8420  Other information:         0x00000010  Threshold-based status:    No tracking  Status bits:   Processor context corrupt   Error enabled   Uncorrected errorpanic(cpu 0 caller 0x2a9d27): Machine Check at 0x84489aa5, thread:0x17dedb7c, trapno:0x12, err:0x0,registers:CR0: 0x8001003b, CR2: 0x0021c000, CR3: 0x0c3df000, CR4: 0x00000660EAX: 0x00800000, EBX: 0x841d4a00, ECX: 0x00000001, EDX: 0x00000828ESP: 0x0010bce0, EBP: 0x0010bcf8, ESI: 0xffffffff, EDI: 0x00000800EFL: 0x00000046, EIP: 0x84489aa5Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)0x819e18 : 0x21b50c (0x5d42fc 0x819e4c 0x223974 0x0) 0x819e68 : 0x2a9d27 (0x595e34 0x595f21 0x84489aa5 0x17dedb7c) 0x819f58 : 0x2a1912 (0x1 0x0 0x0 0x0) 0x10bcf8 : 0x84471ee0 (0x828 0x800000 0x20 0x84471fe5) 0x10bd48 : 0x8e10928c (0x15ca0c00 0x800000 0x0 0x1) 0x10bdc8 : 0x8447e862 (0x16b25e00 0x0 0x15e81100 0x0) 0x10bdf8 : 0x8447db3d (0x15e66a80 0x0 0x0 0x1c) 0x10be18 : 0x8448c5e2 (0x1c 0x10be8c 0x8 0x84489cab) 0x10be48 : 0x8448c7e4 (0x15e6291c 0x17 0x15e66dbe 0x15e6a000) 0x10bea8 : 0x84493fa8 (0x15e65a88 0x299e72b6 0x10bed8 0x15fed020) 0x10bec8 : 0x562c0d (0x15e65a88 0x0 0x159cdd80 0x0) 0x10bef8 : 0x846955bb (0x15e66b00 0x0 0x15e66b00 0x0) 0x10bf28 : 0x84471213 (0x15e5cc00 0x0 0x0 0x49) 0x10bf48 : 0x8447c745 (0x49 0x0 0x10bf88 0x2b16c2) 0x10bf68 : 0x578d03 (0x15a17d80 0x0 0x159f7880 0x49) 0x10bf88 : 0x2aa0e2 (0x49 0x8d6b3ac0 0x19e 0x1) 0x10bfd8 : 0x2a0b5e (0x8d6b3ac0 0x2a1920 0x0 0x2a197b) 0x8d6b3b88 : 0x512c9d (0x15e853c0 0x0 0x1 0x15e853c0) 0x8d6b3bb8 : 0x4ff5ae (0x15e853c0 0x0 0x1 0x51301e) 0x8d6b3bd8 : 0x4ff5c9 (0x15e853c0 0x0 0xc8 0x1698ae00) 0x8d6b3bf8 : 0x4ff0de (0x15e853c0 0x17084c00 0x8d6b3c28 0x32) 0x8d6b3c18 : 0x537564 (0x17084c00 0x17cd9300 0x8d6b3c58 0x17084c00) 0x8d6b3c98 : 0x538937 (0x17084c00 0x16986640 0x0 0x4ff5e5) 0x8d6b3ce8 : 0x53e398 (0x16986640 0x4 0x0 0x1698b400) 0x8d6b3d28 : 0x53e427 (0x159cc940 0x16986640 0x563c20 0x1698b400) 0x8d6b3d58 : 0x53e482 (0x159cc940 0x16986640 0x563c20 0x1698b400) 0x8d6b3d98 : 0x569643 (0x159cc940 0x16986640 0x563c20 0x1698b400) 0x8d6b3de8 : 0x285265 (0x17b8d070 0x17e728e4 0x40 0x1) 0x8d6b3e58 : 0x21d8ba (0x17e72844 0x16c59d90 0x17e72848 0x17b8d070) 0x8d6b3e98 : 0x210a3a (0x17e72800 0x8d6b3ed0 0x17b8e340 0x1596a6c0) 0x8d6b3ef8 : 0x216c9d (0x17e72800 0x0 0x0 0x0) 0x8d6b3f78 : 0x295156 (0x17df2f08 0x0 0x0 0x0)           Backtrace continues...      Kernel Extensions in backtrace (with dependencies):         com.apple.driver.AppleMCEDriver(1.1.9)@0x8e105000-&gt;0x8e10afff            dependency: com.apple.iokit.IOACPIFamily(1.3.0)@0x841d2000         com.apple.driver.AppleAPIC(1.4)@0x84694000-&gt;0x84696fff         com.apple.driver.AppleACPIPlatform(1.3.5)@0x8446f000-&gt;0x844b0fff            dependency: com.apple.iokit.IOACPIFamily(1.3.0)@0x841d2000            dependency: com.apple.iokit.IOPCIFamily(2.6)@0x843ce000BSD process name corresponding to current thread: SystemUIServerMac OS version:10H574Kernel version:Darwin Kernel Version 10.5.0: Fri Nov  5 23:20:39 PDT 2010; root:xnu-1504.9.17~1/RELEASE_I386System model name: MacPro3,1 (Mac-F42C88C8)System uptime in nanoseconds: 43244193543unloaded kexts:(none)loaded kexts:com.paceap.kext.pacesupport.snowleopard          5.7.2com.Cycling74.driver.Soundflower          1.4.2com.screenrecycler.driver.ScreenRecyclerDriver          0.9.5com.motu.driver.FireWireAudio          1.4.23com.apple.driver.AppleHWSensor          1.9.3d0 - last loaded 37933812211com.apple.filesystems.autofs          2.1.0com.apple.driver.InternalModemSupport          2.6.2com.apple.driver.AppleBluetoothMultitouch          54com.apple.driver.AppleTyMCEDriver          1.0.2d2com.apple.Dont_Steal_Mac_OS_X          7.0.0com.apple.driver.AppleIntelYonahProfile          14com.apple.driver.AppleUpstreamUserClient          3.4.5com.apple.driver.AppleIntelPenrynProfile          17com.apple.driver.AppleMCCSControl          1.0.17com.apple.driver.AppleIntelNehalemProfile          11com.apple.driver.AudioIPCDriver          1.1.6com.apple.driver.AppleHDA          1.9.9f12com.apple.driver.AudioAUUC          1.13com.apple.GeForce          6.2.4com.apple.driver.AppleIntel8254XEthernet          2.1.1b7com.apple.driver.AppleUSBDisplays          283com.apple.driver.AppleIntelMeromProfile          19com.apple.driver.AppleMCEDriver          1.1.9com.apple.driver.ACPI_SMC_PlatformPlugin          4.5.0d5com.apple.driver.AppleLPC          1.4.12com.apple.driver.CSRHIDTransitionDriver          2.3.8f7com.apple.iokit.SCSITaskUserClient          2.6.5com.apple.driver.PioneerSuperDrive          2.5.8com.apple.driver.AppleRAID          4.0.6com.apple.BootCache          31com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1com.apple.driver.AppleUSBHub          4.1.7com.apple.iokit.IOAHCIBlockStorage          1.6.3com.apple.driver.AppleFWOHCI          4.7.1com.apple.driver.AppleUSBEHCI          4.1.7com.apple.driver.AppleAHCIPort          2.1.5com.apple.driver.AppleIntelPIIXATA          2.5.1com.apple.driver.AppleEFINVRAM          1.4.0com.apple.driver.AppleUSBUHCI          4.1.5com.apple.driver.AppleACPIButtons          1.3.5com.apple.driver.AppleRTC          1.3.1com.apple.driver.AppleHPET          1.5com.apple.driver.AppleSMBIOS          1.6com.apple.driver.AppleACPIEC          1.3.5com.apple.driver.AppleAPIC          1.4com.apple.driver.AppleIntelCPUPowerManagementClient          105.13.0com.apple.security.sandbox          1com.apple.security.quarantine          0com.apple.nke.applicationfirewall          2.1.11com.apple.driver.AppleIntelCPUPowerManagement          105.13.0com.apple.driver.AppleHDAPlatformDriver          1.9.9f12com.apple.driver.IOBluetoothHIDDriver          2.3.8f7com.apple.driver.AppleMultitouchDriver          207.10com.apple.driver.AppleProfileReadCounterAction          17com.apple.driver.AppleProfileTimestampAction          10com.apple.driver.AppleProfileThreadInfoAction          14com.apple.driver.AppleProfileRegisterStateAction          10com.apple.driver.AppleProfileKEventAction          10com.apple.driver.AppleProfileCallstackAction          20com.apple.iokit.IOSurface          74.2com.apple.iokit.IOBluetoothSerialManager          2.3.8f7com.apple.iokit.IOSerialFamily          10.0.3com.apple.driver.AppleHDAHardwareConfigDriver          1.9.9f12com.apple.driver.DspFuncLib          1.9.9f12com.apple.iokit.IOFireWireIP          2.0.3com.apple.iokit.IONetworkingFamily          1.10com.apple.driver.AppleUSBAudio          2.7.6f4com.apple.iokit.AppleProfileFamily          41com.apple.driver.AppleHDAController          1.9.9f12com.apple.iokit.IOHDAFamily          1.9.9f12com.apple.driver.AppleSMC          3.1.0d3com.apple.driver.IOPlatformPluginFamily          4.5.0d5com.apple.iokit.IOAudioFamily          1.7.9fc4com.apple.kext.OSvKernDSPLib          1.3com.apple.nvidia.nv50hal          6.2.4com.apple.NVDAResman          6.2.4com.apple.iokit.IONDRVSupport          2.2com.apple.iokit.IOGraphicsFamily          2.2com.apple.driver.CSRUSBBluetoothHCIController          2.3.8f7com.apple.driver.AppleUSBBluetoothHCIController          2.3.8f7com.apple.iokit.IOBluetoothFamily          2.3.8f7com.apple.driver.AppleUSBHIDKeyboard          141com.apple.iokit.IOUSBHIDDriver          4.1.5com.apple.driver.AppleHIDKeyboard          141com.apple.driver.AppleUSBMergeNub          4.1.5com.apple.iokit.IOSCSIBlockCommandsDevice          2.6.5com.apple.iokit.IOUSBMassStorageClass          2.6.5com.apple.driver.AppleUSBComposite          3.9.0com.apple.iokit.IOSCSIMultimediaCommandsDevice          2.6.5com.apple.iokit.IOBDStorageFamily          1.6com.apple.iokit.IODVDStorageFamily          1.6com.apple.iokit.IOCDStorageFamily          1.6com.apple.driver.XsanFilter          402.1com.apple.iokit.IOATAPIProtocolTransport          2.5.1com.apple.iokit.IOSCSIArchitectureModelFamily          2.6.5com.apple.driver.AppleFileSystemDriver          2.0com.apple.iokit.IOUSBUserClient          4.1.5com.apple.iokit.IOFireWireFamily          4.2.6com.apple.iokit.IOAHCIFamily          2.0.4com.apple.iokit.IOATAFamily          2.5.1com.apple.iokit.IOUSBFamily          4.1.7com.apple.driver.AppleEFIRuntime          1.4.0com.apple.iokit.IOHIDFamily          1.6.5com.apple.iokit.IOSMBusFamily          1.1com.apple.security.TMSafetyNet          6com.apple.kext.AppleMatch          1.0.0d1com.apple.driver.DiskImages          289com.apple.iokit.IOStorageFamily          1.6.2com.apple.driver.AppleACPIPlatform          1.3.5com.apple.iokit.IOPCIFamily          2.6com.apple.iokit.IOACPIFamily          1.3.0Model: MacPro3,1, BootROM MP31.006C.B05, 8 processors, Quad-Core Intel Xeon, 2.8 GHz, 16 GB, SMC 1.25f4Graphics: NVIDIA GeForce 8800 GT, NVIDIA GeForce 8800 GT, PCIe, 512 MBMemory Module: global_nameBluetooth: Version 2.3.8f7, 2 service, 19 devices, 1 incoming serial portsPCI Card: NVIDIA GeForce 8800 GT, Display, Slot-1Serial ATA Device: SAMSUNG HD103UJ, 931.51 GBSerial ATA Device: SAMSUNG HD103UJ, 931.51 GBSerial ATA Device: SAMSUNG HD103UJ, 931.51 GBSerial ATA Device: SAMSUNG HD103UJ, 931.51 GBParallel ATA Device: PIONEER DVD-RW  DVR-112D, 7.91 GBUSB Device: Ext HDD 1021, 0x1058  (Western Digital Technologies, Inc.), 0x1021, 0xfd300000USB Device: STORE N GO, 0x13fe  (Phison Electronics Corp.), 0x1e23, 0xfd100000USB Device: Akai MPD24, 0x09e8, 0x0068, 0x1d200000USB Device: Bluetooth USB Host Controller, 0x05ac  (Apple Inc.), 0x8206, 0x5d200000USB Device: Hub, 0x05ac  (Apple Inc.), 0x9102, 0x5d100000USB Device: Hub, 0x05ac  (Apple Inc.), 0x9118, 0x5d110000USB Device: Hub, 0x0409  (NEC Corporation), 0x005a, 0x5d112000USB Device: Hub, 0x0409  (NEC Corporation), 0x005a, 0x5d112400USB Device: iLok, 0x088e, 0x5036, 0x5d112410USB Device: ProtectExecuter, 0x0819, 0x0101, 0x5d112430USB Device: USB Uno MIDI Interface, 0x0763  (M-Audio), 0x0150, 0x5d112100USB Device: Keyboard Hub, 0x05ac  (Apple Inc.), 0x1006, 0x5d111000USB Device: Apple Keyboard, 0x05ac  (Apple Inc.), 0x0221, 0x5d111200USB Device: Studio Display, 0x05ac  (Apple Inc.), 0x9218, 0x5d113000FireWire Device: built-in_hub, Up to 800 Mb/sec

Linc Davis · Answer

Disconnect all peripherals other than keyboard, mouse, and monitor, then boot in safe mode. Do you still get the panics?Mac OS X: Starting up in Safe Mode

boblima · Answer

yes; safe mode does not help.

Grant Bennet-Alder · Answer

Both of those panic reports list the cause as Machine check -- uncorrected error. That&#x27;s a RAM memory problem.Your Mac Pro (tower) has Error Correcting Code ECC memory. Hardware generates redundancy bits and checks them on every read from memory. Single-bit errors are detected and corrected on the fly. Double-bit errors are intended to cause a kernel panic and stop the machine before the error can corrupt anything more. That is what is happening to your Mac. If it will not run for very long, take the side door off while it is running (it is not interlocked) and look for red error lights next to the memory modules. There are no hazardous Voltages that can be accessed with your fingers without tools, but components may be HOT.If it will run for a while, use Apple System Profiler &gt; Memory to look for modules at half their known size (these have failed) or whose status is other than "OK" (those are showing Single-Bit errors, and may soon experience a double-bit error.

The hatter · Answer

Ah, to me, step #1: Apple Hardware Test. Apple Hardware Test

Linc Davis · Answer

If you get the same panic in safe mode, then you have a hardware fault. Probably it&#x27;s a bad memory chip, but it could be other things as well. Rather than attempting a more specific diagnosis yourself, I suggest you take the unit to an Apple Store or other authorized service outlet for testing.

boblima · Answer

thanks a lot; it was indeed a bad memory module. I tried the hardware test but the test wouldn&#x27;t even run until I removed the faulty 2GB module. Now the mac is up an running! What a relief, that&#x27;s the first hardware issue in a mac since starting in 1984!

peterapp · Answer

I started having the same type of kernel panics.  The computer would run for a while then panic.  Removed the hard drive and tested in a different computer.  No Panics.  Mac Pro core 8 dou.  Panic &#x3D; IA32_MC3_STATUS(0x40d)Okay, I used common sence and opened the door of the computer and placed an external fan pointing only at the hard drive logic board, vertical board in the computer.  The fan was not able to cool any other part of the computer.  The computer does not panic anymore.  Used a thermal temperature (radio shack) point and click and found the Intel chip which controls the logic board to be operating over it normal temperature range.  Conclusion.  The vertical I/O board requires replacement.  Local apple store does not understand that a computer must be burned in for testing thermal problems.  Standard flow chart testing on the stores part.  Will now have to bring the computer back to the store and demand a replacement board.  I am a hardware engineer and been designing logic boards for over 20 years.  Apple care tech most likely have never seen a computer chip, let alone component level trouble shoot. You may want to try the same test,   Purchase a box fan from radio shack. aim the fan at the vertical logic board and let the fan run for 5 minutes then power up the computer and see if this fixes the problem, then have the board replaced.