Okay, I've tried everything but my Quadro 4000 Crashes in every OS X version I try to run it on. It will work for a little bit then crashes and a little less and crashes etc, etc. until after it won't work until I leave it out for a few days. In a PC it works fine not issues at all. Ran a stress test for 30 minutes and fine, temps ok etc. So I am guessing its a driver issue?
Copied and pasted the report. Things I've tried. Reflashed with the Mac Original rom file that came with it that I had on an old drive. Nothing, Flashed with a rom found here. Exact same one. Still nothing. Attached the original just in case someone wants a look see. Did that to see if the rom was corrupt but that didn't work. Install different versions of CUDA and Nvidia Web Drivers including Beta ones nothing. It just makes no sense.

Anything I forget? Any suggestions on other things to try? I want to think the card is messed up but if so why does it work flawlessly in Windows?
Anonymous UUID: FF789F41-CCEB-D5D7-A0BB-DDCD05EC8CD3
Sat Feb 20 10:31:35 2016
*** Panic Report ***
panic(cpu 1 caller 0xffffff7f99478b64): NVRM[0/2:0:0]: Read Error 0x00000100: CFG 0x06dd10de 0x00180000 0x00000000, BAR0 0x8c000000 0xffffff83bf4c6000 0x0c0e80a3, D0, P2/3
Backtrace (CPU 1), Frame : Return Address
0xffffff83bd59af40 : 0xffffff801872ad21
0xffffff83bd59afc0 : 0xffffff7f99478b64
0xffffff83bd59b080 : 0xffffff7f99554bdc
0xffffff83bd59b0e0 : 0xffffff7f99554c87
0xffffff83bd59b110 : 0xffffff7f9981186a
0xffffff83bd59b160 : 0xffffff7f99810f6a
0xffffff83bd59b1d0 : 0xffffff7f99581317
0xffffff83bd59b1f0 : 0xffffff7f9947f253
0xffffff83bd59b2a0 : 0xffffff7f9947ca58
0xffffff83bd59b4b0 : 0xffffff7f9947e566
0xffffff83bd59b580 : 0xffffff7f9a3571f5
0xffffff83bd59b6a0 : 0xffffff7f9a305ddf
0xffffff83bd59b6d0 : 0xffffff7f9a2b900e
0xffffff83bd59b6f0 : 0xffffff7f9a2b8fd8
0xffffff83bd59b710 : 0xffffff7f9a29c944
0xffffff83bd59b730 : 0xffffff7f9a349dac
0xffffff83bd59b760 : 0xffffff7f9a316f7b
0xffffff83bd59b7a0 : 0xffffff7f9a317169
0xffffff83bd59b800 : 0xffffff7f9a3160fb
0xffffff83bd59b8b0 : 0xffffff7f9a317840
0xffffff83bd59b960 : 0xffffff7f9a317fee
0xffffff83bd59b9d0 : 0xffffff7f9a288ac9
0xffffff83bd59ba00 : 0xffffff7f9a2962cc
0xffffff83bd59ba50 : 0xffffff7f9a317d73
0xffffff83bd59baa0 : 0xffffff7f9a286db2
0xffffff83bd59bb30 : 0xffffff8018d00a72
0xffffff83bd59bb60 : 0xffffff8018d01679
0xffffff83bd59bbc0 : 0xffffff8018cfede3
0xffffff83bd59bd00 : 0xffffff80187e1307
0xffffff83bd59be10 : 0xffffff801872ef8c
0xffffff83bd59be40 : 0xffffff80187139f3
0xffffff83bd59be90 : 0xffffff801872429d
0xffffff83bd59bf10 : 0xffffff801880231a
0xffffff83bd59bfb0 : 0xffffff80188344c6
Kernel Extensions in backtrace:
com.nvidia.web.NVDAResmanWeb(10.0.5)[05B4AEA7-E8C3-36C4-B540-74593CED4468]@0xffffff7f99413000->0xffffff7f996eafff
dependency: com.apple.iokit.IOPCIFamily(2.9)[05578B0B-C99C-3A87-9F3E-B4746D19CEF4]@0xffffff7f98f24000
dependency: com.apple.iokit.IONDRVSupport(2.4.1)[7372D580-6DDE-3457-B043-49B8447FC9D2]@0xffffff7f993fc000
dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[8922721D-5517-3883-BD3A-57422D0244A0]@0xffffff7f993b5000
dependency: com.apple.AppleGraphicsDeviceControl(3.10.25)[DFDCFB7E-74E4-397E-AA6F-6ECFC41D5649]@0xffffff7f9940c000
com.nvidia.web.NVDAGF100HalWeb(10.0.5)[D779BD76-9307-3828-8DE1-9D504E7C78AE]@0xffffff7f996fa000->0xffffff7f998b8fff
dependency: com.nvidia.web.NVDAResmanWeb(10.0.5)[05B4AEA7-E8C3-36C4-B540-74593CED4468]@0xffffff7f99413000
dependency: com.apple.iokit.IOPCIFamily(2.9)[05578B0B-C99C-3A87-9F3E-B4746D19CEF4]@0xffffff7f98f24000
com.apple.iokit.IOAcceleratorFamily2(156.16)[1259B80F-E4C5-3BC9-BED5-65B42289E8C0]@0xffffff7f9a282000->0xffffff7f9a2f0fff
dependency: com.apple.iokit.IOPCIFamily(2.9)[05578B0B-C99C-3A87-9F3E-B4746D19CEF4]@0xffffff7f98f24000
dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[8922721D-5517-3883-BD3A-57422D0244A0]@0xffffff7f993b5000
com.nvidia.web.GeForceWeb(10.0.5)[A01EB1DD-A87C-3BE5-9D9A-03CA21EE4DC9]@0xffffff7f9a2ff000->0xffffff7f9a38afff
dependency: com.apple.iokit.IOPCIFamily(2.9)[05578B0B-C99C-3A87-9F3E-B4746D19CEF4]@0xffffff7f98f24000
dependency: com.apple.iokit.IONDRVSupport(2.4.1)[7372D580-6DDE-3457-B043-49B8447FC9D2]@0xffffff7f993fc000
dependency: com.nvidia.web.NVDAResmanWeb(10.0.5)[05B4AEA7-E8C3-36C4-B540-74593CED4468]@0xffffff7f99413000
dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[8922721D-5517-3883-BD3A-57422D0244A0]@0xffffff7f993b5000
dependency: com.apple.iokit.IOAcceleratorFamily2(156.16)[1259B80F-E4C5-3BC9-BED5-65B42289E8C0]@0xffffff7f9a282000
BSD process name corresponding to current thread: com.apple.WebKit
Boot args: nvda_drv=1
Mac OS version:
14F1605
Kernel version:
Darwin Kernel Version 14.5.0: Tue Sep 1 21:23:09 PDT 2015; root:xnu-2782.50.1~1/RELEASE_X86_64
Kernel UUID: 06D286E3-A8A1-3BE7-A7EB-EAC6E0C69758
Kernel slide: 0x0000000018400000
Kernel text base: 0xffffff8018600000
__HIB text base: 0xffffff8018500000
System model name: MacPro3,1 (Mac-F42C88C8)
System uptime in nanoseconds: 214203794596
last loaded kext at 174542118472: com.apple.filesystems.exfat 1.4 (addr 0xffffff7f9a3d1000, size 65536)
loaded kexts:
com.paragon-software.filesystems.ntfs 95
com.nvidia.CUDA 1.1.0
com.intel.kext.intelhaxm 1.1.5
com.nvidia.web.GeForceWeb 10.0.5
com.nvidia.web.NVDAGF100HalWeb 10.0.5
com.nvidia.web.NVDAResmanWeb 10.0.5
com.nvidia.NVDAStartup 10.0.5
com.seagate.driver.PowSecLeafDriver_10_5 5.2.6
com.seagate.driver.PowSecDriverCore 5.2.6
com.apple.filesystems.exfat 1.4
com.apple.driver.AudioAUUC 1.70
com.apple.driver.AppleUSBCDC 4.3.3b1
com.apple.driver.AppleGraphicsDevicePolicy 3.7.7
com.apple.filesystems.ntfs 3.13
com.apple.iokit.CSRBluetoothHostControllerUSBTransport 4.3.6f3
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.driver.AppleMCCSControl 1.2.12
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleTyMCEDriver 1.0.2d2
com.apple.iokit.IOBluetoothSerialManager 4.3.6f3
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleHDAHardwareConfigDriver 272.18.3
com.apple.driver.AppleHDA 272.18.3
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleHV 1
com.apple.driver.AppleLPC 1.7.3
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleMCEDriver 1.1.9
com.apple.driver.AppleFIVRDriver 4.1.0
com.apple.driver.CSRHIDTransitionDriver 4.3.6f3
com.apple.iokit.IOUSBAttachedSCSI 1.1.1
com.apple.iokit.SCSITaskUserClient 3.7.5
com.apple.driver.XsanFilter 404
com.apple.driver.AppleFileSystemDriver 3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0
com.apple.BootCache 36
com.apple.iokit.IOAHCIBlockStorage 2.7.1
com.apple.iokit.IOAHCIPassThrough 1.0.3
com.apple.driver.AppleIntel8254XEthernet 3.1.4b1
com.apple.driver.AppleUSBXHCI 710.4.11
com.apple.driver.AppleUSBHub 705.4.2
com.apple.driver.AppleFWOHCI 5.5.2
com.apple.driver.AppleAHCIPort 3.1.2
com.apple.driver.AirPortBrcm43224 700.36.24
com.apple.driver.AppleIntelPIIXATA 2.5.1
com.apple.driver.AppleUSBEHCI 705.4.14
com.apple.driver.AppleUSBUHCI 656.4.1
com.apple.driver.AppleACPIButtons 3.1
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleHPET 1.8
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.AppleUSBAudio 295.23
com.apple.driver.AppleGraphicsControl 3.10.25
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.6f3
com.apple.driver.AppleSMBusController 1.0.13d1
com.apple.kext.triggers 1.0
com.apple.iokit.IOAcceleratorFamily2 156.16
com.apple.AppleGraphicsDeviceControl 3.10.25
com.apple.iokit.IOSerialFamily 11
com.apple.driver.DspFuncLib 272.18.3
com.apple.kext.OSvKernDSPLib 1.15
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.iokit.IOSurface 97.4
com.apple.iokit.IOBluetoothFamily 4.3.6f3
com.apple.driver.AppleHDAController 272.18.3
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOHDAFamily 272.18.3
com.apple.iokit.IOAudioFamily 203.3
com.apple.vecLib.kext 1.2.0
com.apple.iokit.IOUSBUserClient 705.4.0
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.IOPlatformPluginFamily 5.9.1d7
com.apple.driver.AppleSMC 3.1.9
com.apple.iokit.IOFireWireIP 2.2.6
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.iokit.IOUSBMassStorageClass 3.7.2
com.apple.driver.AppleUSBHIDKeyboard 176.2
com.apple.driver.AppleHIDKeyboard 176.2
com.apple.iokit.IOUSBHIDDriver 705.4.0
com.apple.driver.AppleUSBMergeNub 705.4.0
com.apple.driver.AppleUSBComposite 705.4.9
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.5
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.iokit.IOFireWireSBP2 4.2.7
com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.5
com.apple.iokit.IOAHCISerialATAPI 2.6.1
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.5
com.apple.iokit.IOFireWireFamily 4.5.8
com.apple.iokit.IOAHCIFamily 2.7.5
com.apple.iokit.IO80211Family 730.60
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOATAFamily 2.5.3
com.apple.iokit.IOUSBFamily 720.4.4
com.apple.driver.AppleEFINVRAM 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.driver.AppleEFIRuntime 2.0
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 398
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.corecrypto 1.0
com.apple.kec.Libm 1
com.apple.kec.pthread 1
Model: MacPro3,1, BootROM MP31.006C.B05, 8 processors, Quad-Core Intel Xeon, 2.8 GHz, 32 GB, SMC 1.25f4
Graphics: NVIDIA Quadro 4000, NVIDIA Quadro 4000, PCIe, 2047 MB
Memory Module: DIMM Riser B/DIMM 1, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x333648544635313237324638304545314434
Memory Module: DIMM Riser B/DIMM 2, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x333648544635313237324638304545314434
Memory Module: DIMM Riser A/DIMM 1, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x333648544635313237324638304545314434
Memory Module: DIMM Riser A/DIMM 2, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x333648544635313237324638304545314434
Memory Module: DIMM Riser B/DIMM 3, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x333648544635313237324638304545314434
Memory Module: DIMM Riser B/DIMM 4, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x333648544635313237324638304545314434
Memory Module: DIMM Riser A/DIMM 3, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x333648544635313237324638304545314434
Memory Module: DIMM Riser A/DIMM 4, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x333648544635313237324638304545314434
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x87), Broadcom BCM43xx 1.0 (5.10.131.36.16)
Bluetooth: Version 4.3.6f3 16238, 3 services, 26 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en2
Serial ATA Device: CT250BX100SSD1, 250.06 GB
Serial ATA Device: INTEL SSDSA2CW160G3, 160.04 GB
Serial ATA Device: WDC WD15EADS-00S2B0, 1.5 TB
Serial ATA Device: ST380815AS, 80 GB
Serial ATA Device: INTEL SSDSC2CT180A3, 180.05 GB
Serial ATA Device: HL-DT-ST DVD-RW GH41N
USB Device: Miscellaneous Device
USB Device: Keyboard Hub
USB Device: Apple Keyboard
USB Device: Microsoft® Nano Transceiver v2.0
USB Device: Bluetooth USB Host Controller
USB Device: BUP Slim RD
FireWire Device: built-in_hub, Up to 800 Mb/sec
Thunderbolt Bus: