System keeps shutting down randomly please HELP

Here is my error on my MacPro 4,1

Interval Since Last Panic Report: 651343 sec

Panics Since Last Report: 4

Anonymous UUID: FAD47B8E-544B-AFA7-7EC0-D81CF2367C05

Thu Jan 24 21:18:04 2013

panic(cpu 8 caller 0xffffff8017e51c07): "IOGMD: not wired for the IODMACommand"@/SourceCache/xnu/xnu-2050.18.24/iokit/Kernel/IOMemoryDescriptor.c pp:1424

Backtrace (CPU 8), Frame : Return Address

0xffffff81e930ad20 : 0xffffff8017a1d626

0xffffff81e930ad90 : 0xffffff8017e51c07

0xffffff81e930ae20 : 0xffffff8017e4c9de

0xffffff81e930aed0 : 0xffffff8017e4d60a

0xffffff81e930aef0 : 0xffffff7f9812ca44

0xffffff81e930af60 : 0xffffff7f98196d85

0xffffff81e930afb0 : 0xffffff7f98196eaf

0xffffff81e930b000 : 0xffffff7f9817c515

0xffffff81e930b080 : 0xffffff7f9817a815

0xffffff81e930b0c0 : 0xffffff7f98169083

0xffffff81e930b170 : 0xffffff7f98193177

0xffffff81e930b360 : 0xffffff7f981941d8

0xffffff81e930b430 : 0xffffff7f9927b419

0xffffff81e930b570 : 0xffffff7f9927aefe

0xffffff81e930b580 : 0xffffff7f99252cfb

0xffffff81e930b590 : 0xffffff7f99229580

0xffffff81e930b5d0 : 0xffffff7f9922bcc8

0xffffff81e930b600 : 0xffffff7f9928e1c4

0xffffff81e930b680 : 0xffffff7f9928e633

0xffffff81e930b700 : 0xffffff7f99272b4a

0xffffff81e930b760 : 0xffffff7f99273415

0xffffff81e930b7b0 : 0xffffff7f9927398c

0xffffff81e930b850 : 0xffffff7f99274239

0xffffff81e930b890 : 0xffffff7f9922fe81

0xffffff81e930ba10 : 0xffffff7f992707fe

0xffffff81e930bad0 : 0xffffff7f9922e98a

0xffffff81e930bb30 : 0xffffff8017e65bc9

0xffffff81e930bb50 : 0xffffff8017e67170

0xffffff81e930bbb0 : 0xffffff8017e64b8f

0xffffff81e930bd00 : 0xffffff8017a981e1

0xffffff81e930be10 : 0xffffff8017a20aed

0xffffff81e930be40 : 0xffffff8017a10448

0xffffff81e930be90 : 0xffffff8017a1961b

0xffffff81e930bf00 : 0xffffff8017aa59be

0xffffff81e930bfb0 : 0xffffff8017aceafe

Kernel Extensions in backtrace:

com.apple.NVDAResman(8.0)[A4C53A36-22B6-3075-82B9-9DE612A9C015]@0xffffff7f98126 000->0xffffff7f98428fff

dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7f9805d000

dependency: com.apple.iokit.IONDRVSupport(2.3.5)[86DDB71C-A73A-3EBE-AC44-0BC9A38B9A44]@0xff ffff7f98112000

dependency: com.apple.iokit.IOGraphicsFamily(2.3.5)[803496D0-ADAD-3ADB-B071-8A0A197DA53D]@0 xffffff7f980cf000

com.apple.GeForce(8.0)[2E56ED9A-D848-3795-9E52-56BABDC9000C]@0xffffff7f99222000 ->0xffffff7f992e4fff

dependency: com.apple.NVDAResman(8.0.0)[A4C53A36-22B6-3075-82B9-9DE612A9C015]@0xffffff7f981 26000

dependency: com.apple.iokit.IONDRVSupport(2.3.5)[86DDB71C-A73A-3EBE-AC44-0BC9A38B9A44]@0xff ffff7f98112000

dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7f9805d000

dependency: com.apple.iokit.IOGraphicsFamily(2.3.5)[803496D0-ADAD-3ADB-B071-8A0A197DA53D]@0 xffffff7f980cf000

BSD process name corresponding to current thread: Google Chrome

Mac OS version:

12C60

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: 0x0000000017800000

Kernel text base: 0xffffff8017a00000

System model name: MacPro4,1 (Mac-F221BEC8)

System uptime in nanoseconds: 21094036571622

last loaded kext at 15235280774: com.apple.driver.AppleHWSensor 1.9.5d0 (addr 0xffffff7f99a02000, size 36864)

loaded kexts:

com.attotech.driver.ATTOiSCSI 3.4.1b1

com.Logitech.Unifying.HID Driver 1.2.0

com.TrustedData.driver.VendorSpecificType00 1.5.0

com.Logitech.Control Center.HID Driver 3.6.0

com.SiliconImage.driver.Si3132 1.2.5

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.filesystems.autofs 3.0

com.apple.driver.AudioAUUC 1.60

com.apple.iokit.IOBluetoothSerialManager 4.0.9f33

com.apple.driver.AppleUSBDisplays 353

com.apple.driver.AppleHDAHardwareConfigDriver 2.3.1f2

com.apple.driver.AppleTyMCEDriver 1.0.2d2

com.apple.driver.AGPM 100.12.69

com.apple.driver.AppleHDA 2.3.1f2

com.apple.driver.AppleMikeyHIDDriver 122

com.apple.driver.AppleLPC 1.6.0

com.apple.iokit.IOBluetoothUSBDFU 4.0.9f33

com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport 4.0.9f33

com.apple.driver.AppleUpstreamUserClient 3.5.10

com.apple.driver.AppleMCCSControl 1.0.33

com.apple.driver.AppleMikeyDriver 2.3.1f2

com.apple.GeForce 8.0.0

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.ApplePolicyControl 3.2.11

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.2.2

com.apple.driver.AppleFileSystemDriver 3.0.1

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 34

com.apple.iokit.SCSITaskUserClient 3.5.1

com.apple.driver.AppleUSBHub 5.2.5

com.apple.driver.AppleFWOHCI 4.9.6

com.apple.driver.AppleIntel8254XEthernet 3.1.1b1

com.apple.driver.AirPort.Brcm4331 602.15.22

com.apple.driver.Intel82574L 2.3.0b4

com.apple.driver.AppleAHCIPort 2.4.1

com.apple.driver.AppleUSBEHCI 5.4.0

com.apple.driver.AppleUSBUHCI 5.2.5

com.apple.driver.AppleEFINVRAM 1.6.1

com.apple.driver.AppleRTC 1.5

com.apple.driver.AppleHPET 1.7

com.apple.driver.AppleACPIButtons 1.6

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.kext.triggers 1.0

com.apple.iokit.IOSerialFamily 10.0.6

com.apple.driver.AppleUSBAudio 2.9.0f6

com.apple.driver.DspFuncLib 2.3.1f2

com.apple.iokit.IOAudioFamily 1.8.9fc10

com.apple.kext.OSvKernDSPLib 1.6

com.apple.iokit.IOFireWireIP 2.2.5

com.apple.driver.AppleHDAController 2.3.1f2

com.apple.iokit.IOHDAFamily 2.3.1f2

com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.0.9f33

com.apple.driver.AppleSMBusController 1.0.10d0

com.apple.nvidia.nv50hal 8.0.0

com.apple.NVDAResman 8.0.0

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.IOPlatformPluginFamily 5.2.0d16

com.apple.driver.AppleSMBusPCI 1.0.10d0

com.apple.iokit.IOSurface 86.0.3

com.apple.driver.AppleGraphicsControl 3.2.11

com.apple.iokit.IONDRVSupport 2.3.5

com.apple.iokit.IOGraphicsFamily 2.3.5

com.apple.driver.AppleSMC 3.1.4d2

com.apple.driver.AppleUSBHIDKeyboard 165.5

com.apple.driver.AppleHIDKeyboard 165.5

com.apple.iokit.IOSCSIBlockCommandsDevice 3.5.1

com.apple.driver.IOBluetoothHIDDriver 4.0.9f33

com.apple.iokit.IOBluetoothFamily 4.0.9f33

com.apple.iokit.IOUSBHIDDriver 5.2.5

com.apple.driver.AppleUSBMergeNub 5.2.5

com.apple.driver.AppleUSBComposite 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.IOFireWireFamily 4.5.5

com.apple.iokit.IOAHCISerialATAPI 2.5.0

com.apple.iokit.IOUSBUserClient 5.2.5

com.apple.iokit.IO80211Family 500.15

com.apple.iokit.IONetworkingFamily 3.0

com.apple.iokit.IOSCSIParallelFamily 2.5.1

com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.1

com.apple.iokit.IOAHCIFamily 2.2.1

com.apple.iokit.IOUSBFamily 5.4.0

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.iokit.IOStorageFamily 1.8

com.apple.driver.AppleKeyStore 28.21

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