The computer spontaneously reboots and produces this error, seemingly randomly...
Anonymous UUID: 2097A07A-74E9-47BE-88EB-3874436537DB
Thu Jun 2 07:03:42 2016
*** MCA Error Report ***
CPU Machine Check Architecture Error Dump (CPU: Intel(R) Xeon(R) CPU E5-1620 v2 @ 3.70GHz, CPUID: 0x306E4)
Core: 0
IA32_MC20_STATUS=0xFE200000000C110A
IA32_MC20_CTL=0x0
IA32_MC20_ADDR=0xB6200100
IA32_MC20_MISC=0xFC381600802086
Model: MacPro6,1, BootROM MP61.0116.B17, 4 processors, Quad-Core Intel Xeon E5, 3.7 GHz, 32 GB, SMC 2.20f18
Graphics: AMD FirePro D300, AMD FirePro D300, PCIe, 2048 MB
Graphics: AMD FirePro D300, AMD FirePro D300, PCIe, 2048 MB
Memory Module: DIMM1, 8 GB, DDR3 ECC, 1866 MHz, 0x85F7, 0x463732314755363746333138364700000000
Memory Module: DIMM2, 8 GB, DDR3 ECC, 1866 MHz, 0x85F7, 0x463732314755363746333138364700000000
Memory Module: DIMM3, 8 GB, DDR3 ECC, 1866 MHz, 0x85F7, 0x463732314755363746333138364700000000
Memory Module: DIMM4, 8 GB, DDR3 ECC, 1866 MHz, 0x85F7, 0x463732314755363746333138364700000000
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x135), Broadcom BCM43xx 1.0 (7.21.95.175.1a6)
Bluetooth: Version 4.4.5f3 17904, 3 services, 27 devices, 1 incoming serial ports
Network Service: Ethernet 2, Ethernet, en1
PCI Card: AMD FirePro D300, Display Controller, Slot-1
PCI Card: AMD FirePro D300, Display Controller, Slot-2
PCI Card: ethernet, Ethernet Controller, Thunderbolt@153,0,0
PCI Card: pci1b73,1100, USB eXtensible Host Controller, Thunderbolt@152,0,0
PCI Card: pci1b21,612, AHCI Controller, Thunderbolt@151,0,0
PCI Card: pci11c1,5901, IEEE 1394 Open HCI, Thunderbolt@237,0,0
PCI Card: CalDigitRAID T4R Driver, RAID Controller, Thunderbolt@160,0,0
PCI Card: CalDigitRAID T4R Driver, RAID Controller, Thunderbolt@159,0,0
PCI Card: CalDigitRAID T4R Driver, RAID Controller, Thunderbolt@158,0,0
PCI Card: CalDigitRAID T4R Driver, RAID Controller, Thunderbolt@157,0,0
Serial ATA Device: OWC Aura SSD, 1.92 TB
Serial ATA Device: MARVELL VIRTUAL
SCSI Device: SCSI Target Device @ 0
USB Device: USB 2.0 Bus
USB Device: Hub
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: USB 3.0 Bus
USB Device: USB3.0 Card Reader
USB Device: Apple USB SuperDrive
USB Device: Hub in Apple Pro Keyboard
USB Device: Apple Pro Keyboard
USB Device: USB 3.0 Bus
USB Device: USB3.0 Hub
USB Device: USB3.0 Hub
USB Device: Backup+ Desk
USB Device: Backup+ Desk
USB Device: USB audio CODEC
USB Device: USB2.0 Hub
USB Device: USB2.0 Hub
USB Device: Usb Storage
USB Device: GoFlex Desk
Thunderbolt Bus: Mac Pro, Apple Inc., 19.2
Thunderbolt Bus: Mac Pro, Apple Inc., 19.2
Thunderbolt Device: Thunderbolt Station 2, CalDigit, Inc., 3, 25.1
Thunderbolt Bus: Mac Pro, Apple Inc., 19.2
Thunderbolt Device: Thunderbolt to FireWire Adapter, Apple Inc., 3, 5.6
