MAC Pro is restarting and getting panics report every time

Hi, My MAC Pro is restarting sometimes and getting panics report every time, it started from last one year and now started to happen much more frequently. I've had more than 10 times this afternoon. Here's the most latest report:
Attached is the system configuration also;

Anonymous UUID: B545123F-5C7A-EAF3-F688-F36B250EE887

Wed Mar 4 14:09:35 2015

*** Panic Report ***

Machine-check capabilities: 0x0000000000001c09

family: 6 model: 44 stepping: 2 microcode: 15

signature: 0x206c2

Intel(R) Xeon(R) CPU E5620 @ 2.40GHz

9 error-reporting banks

Processor 0: IA32_MCG_STATUS: 0x0000000000000004

IA32_MC8_STATUS(0x421): 0xfe0000000001009f

IA32_MC8_ADDR(0x422): 0x000000053364c000

IA32_MC8_MISC(0x423): 0x7314840c00046040

Processor 1: IA32_MCG_STATUS: 0x0000000000000004

IA32_MC8_STATUS(0x421): 0xfe0000000001009f

IA32_MC8_ADDR(0x422): 0x000000053364c000

IA32_MC8_MISC(0x423): 0x7314840c00046040

Processor 2: IA32_MCG_STATUS: 0x0000000000000004

IA32_MC8_STATUS(0x421): 0xfe0000000001009f

IA32_MC8_ADDR(0x422): 0x000000053364c000

IA32_MC8_MISC(0x423): 0x7314840c00046040

Processor 3: IA32_MCG_STATUS: 0x0000000000000004

IA32_MC8_STATUS(0x421): 0xfe0000000001009f

IA32_MC8_ADDR(0x422): 0x000000053364c000

IA32_MC8_MISC(0x423): 0x7314840c00046040

Processor 4: IA32_MCG_STATUS: 0x0000000000000004

IA32_MC8_STATUS(0x421): 0xfe0000000001009f

IA32_MC8_ADDR(0x422): 0x000000053364c000

IA32_MC8_MISC(0x423): 0x7314840c00046040

Processor 5: IA32_MCG_STATUS: 0x0000000000000004

IA32_MC8_STATUS(0x421): 0xfe0000000001009f

IA32_MC8_ADDR(0x422): 0x000000053364c000

IA32_MC8_MISC(0x423): 0x7314840c00046040

Processor 6: IA32_MCG_STATUS: 0x0000000000000004

IA32_MC8_STATUS(0x421): 0xfe0000000001009f

IA32_MC8_ADDR(0x422): 0x000000053364c000

IA32_MC8_MISC(0x423): 0x7314840c00046040

Processor 7: IA32_MCG_STATUS: 0x0000000000000004

IA32_MC8_STATUS(0x421): 0xfe0000000001009f

IA32_MC8_ADDR(0x422): 0x000000053364c000

IA32_MC8_MISC(0x423): 0x7314840c00046040

panic(cpu 10 caller 0xffffff8006c1ae0a): "Machine Check at 0xffffff800690e11b, registers:\n" "CR0: 0x0000000080010033, CR2: 0x00007ffcad9fffa0, CR3: 0x00000005487b8065, CR4: 0x00000000000226e0\n" "RAX: 0x0000000000000000, RBX: 0xffffff801f91b200, RCX: 0x0000000000000198, RDX: 0xfffffe85c0000000\n" "RSP: 0xffffff82616ebca8, RBP: 0xffffff82616ebd00, RSI: 0x0000000000001000, RDI: 0xfffffe8af364c340\n" "R8: 0x0000000000000001, R9: 0xffffff82616ebe90, R10: 0x0000000000000000, R11: 0x0000000000000246\n" "R12: 0xffffff8007310f08, R13: 0xffffff803156e870, R14: 0xffffff803156e870, R15: 0x00000000000ff000\n" "RFL: 0x0000000000010206, RIP: 0xffffff800690e11b, CS: 0x0000000000000008, SS: 0x0000000000000000\n" "Error code: 0x0000000000000000\n"@/SourceCache/xnu/xnu-2782.10.72/osfmk/i386/trap_native.c: 168

Backtrace (CPU 10), Frame : Return Address

0xffffff82551fde90 : 0xffffff8006b2fe41

0xffffff82551fdf10 : 0xffffff8006c1ae0a

0xffffff82551fe070 : 0xffffff8006c36f2f

0xffffff82616ebd00 : 0xffffff8006b9e1df

0xffffff82616ebf20 : 0xffffff8006c1a974

0xffffff82616ebfb0 : 0xffffff8006c36595

BSD process name corresponding to current thread: talagent

Mac OS version:

14C109

Kernel version:

Darwin Kernel Version 14.1.0: Mon Dec 22 23:10:38 PST 2014; root:xnu-2782.10.72~2/RELEASE_X86_64

Kernel UUID: DCF5C2D5-16AE-37F5-B2BE-ED127048DFF5

Kernel slide: 0x0000000006800000

Kernel text base: 0xffffff8006a00000

__HIB text base: 0xffffff8006900000

System model name: MacPro5,1 (Mac-F221BEC8)

System uptime in nanoseconds: 112252462406

last loaded kext at 73017388917: com.apple.driver.AppleBluetoothMultitouch 85.3 (addr 0xffffff7f889f2000, size 61440)

loaded kexts:

com.apple.driver.AppleBluetoothMultitouch 85.3

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.iokit.IOBluetoothSerialManager 4.3.2f6

com.apple.driver.AppleTyMCEDriver 1.0.2d2

com.apple.driver.AGPM 100.15.5

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.driver.AppleMikeyDriver 269.25

com.apple.driver.AppleHDAHardwareConfigDriver 269.25

com.apple.driver.AppleUpstreamUserClient 3.6.1

com.apple.driver.AppleHDA 269.25

com.apple.driver.AudioAUUC 1.70

com.apple.driver.AppleMCCSControl 1.2.11

com.apple.kext.AMDFramebuffer 1.3.0

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.iokit.IOBluetoothUSBDFU 4.3.2f6

com.apple.AMDRadeonX3000 1.3.0

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.2f6

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleLPC 1.7.3

com.apple.kext.AMD5000Controller 1.3.0

com.apple.driver.AppleHWAccess 1

com.apple.driver.AppleHV 1

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.7.0

com.apple.driver.AppleUSBDisplays 372.1

com.apple.iokit.SCSITaskUserClient 3.7.3

com.apple.driver.AppleFileSystemDriver 3.0.1

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 35

com.apple.driver.AppleUSBHub 705.4.2

com.apple.driver.AppleFWOHCI 5.5.2

com.apple.driver.AirPort.Brcm4331 800.20.24

com.apple.driver.Intel82574L 2.6.7b2

com.apple.driver.AppleUSBEHCI 705.4.14

com.apple.driver.AppleAHCIPort 3.1.0

com.apple.driver.AppleUSBUHCI 656.4.1

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleACPIButtons 3.1

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 3.1

com.apple.driver.AppleAPIC 1.7

com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0

com.apple.nke.applicationfirewall 161

com.apple.security.quarantine 3

com.apple.security.TMSafetyNet 8

com.apple.driver.AppleIntelCPUPowerManagement 218.0.0

com.apple.driver.IOBluetoothHIDDriver 4.3.2f6

com.apple.driver.AppleMultitouchDriver 262.33.1

com.apple.iokit.IOSerialFamily 11

com.apple.kext.triggers 1.0

com.apple.driver.DspFuncLib 269.25

com.apple.kext.OSvKernDSPLib 1.15

com.apple.iokit.IONDRVSupport 2.4.1

com.apple.iokit.IOSurface 97

com.apple.iokit.IOAcceleratorFamily2 156.6

com.apple.driver.AppleSMBusController 1.0.13d1

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.2f6

com.apple.iokit.IOBluetoothFamily 4.3.2f6

com.apple.iokit.IOFireWireIP 2.2.6

com.apple.driver.AppleHDAController 269.25

com.apple.iokit.IOHDAFamily 269.25

com.apple.driver.AppleSMBusPCI 1.0.12d1

com.apple.iokit.IOUSBUserClient 705.4.0

com.apple.kext.AMDSupport 1.3.0

com.apple.AppleGraphicsDeviceControl 3.8.6

com.apple.iokit.IOGraphicsFamily 2.4.1

com.apple.driver.AppleSMC 3.1.9

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.IOPlatformPluginFamily 5.8.1d38

com.apple.driver.AppleUSBHIDKeyboard 176.2

com.apple.driver.AppleHIDKeyboard 176.2

com.apple.driver.AppleUSBAudio 295.23

com.apple.iokit.IOAudioFamily 203.3

com.apple.vecLib.kext 1.2.0

com.apple.iokit.IOUSBHIDDriver 705.4.0

com.apple.iokit.IOUSBHIDDriverPM 710.4.7

com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.3

com.apple.iokit.IOUSBMassStorageClass 3.7.1

com.apple.driver.AppleUSBMergeNub 705.4.0

com.apple.driver.AppleUSBComposite 705.4.9

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.3

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.iokit.IOFireWireFamily 4.5.6

com.apple.iokit.IOAHCISerialATAPI 2.6.1

com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.3

com.apple.iokit.IO80211Family 710.55

com.apple.iokit.IONetworkingFamily 3.2

com.apple.iokit.IOAHCIFamily 2.7.5

com.apple.iokit.IOUSBFamily 710.4.14

com.apple.driver.AppleEFINVRAM 2.0

com.apple.driver.AppleEFIRuntime 2.0

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 300.0

com.apple.kext.AppleMatch 1.0.0d1

com.apple.driver.AppleKeyStore 2

com.apple.driver.AppleMobileFileIntegrity 1.0.5

com.apple.driver.AppleCredentialManager 1.0

com.apple.driver.DiskImages 396

com.apple.iokit.IOStorageFamily 2.0

com.apple.iokit.IOReportFamily 31

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleACPIPlatform 3.1

com.apple.iokit.IOPCIFamily 2.9

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.Libm 1

com.apple.kec.pthread 1

com.apple.kec.corecrypto 1.0

Unable to gather system configuration information.

<Persoanl Information Removed by Host>