Can anyone interpret this? 2008 Pro Tower running El Capitan

[ntac]

After removing my riser cards, GPU, sled drives and front fan to clean dust I then checked for any updates and installed the most recent update for iTunes. Shortly there after, I kept getting screen hangups with various amounts of pixelated distortions. After several restarts (resulting in the white apple logo screens status bar only moving halfway across and freezing) I started getting two red bars on led's 3 & 4 of the Diag led strip. I removed risers and eliminated DIMMS until I found 2 8gb DIMMS ( one in each DIMM #1 slot on each riser) that stopped the red lights from coming on and eventually booting up. I could boot up yesterday but it would run for a few minutes and freeze up again with the pixelated issue again. On first book up today I received the script seen below. However i'm running with several programs open at the moment for almost an hour with no glitches. I'm thinking a GPU issue -GEFORCE 8800 GT- or logic board??? Any thoughts greatly appreciated. This system is 11 years old now and I really would rather spend any money on getting a new model.
Anonymous UUID: 880A19E1-E634-0290-5176-D6726E9FB3E8

Sun May 19 19:10:36 2019

*** Panic Report ***
Machine-check capabilities: 0x0000000000000806
family: 6 model: 23 stepping: 6 microcode: 1551
signature: 0x10676
Intel(R) Xeon(R) CPU E5462 @ 2.80GHz
6 error-reporting banks
Processor 2: IA32_MCG_STATUS: 0x0000000000000005
IA32_MC0_STATUS(0x401): 0xb200004000000800
IA32_MC5_STATUS(0x415): 0xb200220024080400
panic(cpu 0 caller 0xffffff80083d075a): "TLB invalidation IPI timeout: " "CPU(s) failed to respond to interrupts, unresponsive CPU bitmap: 0x4, NMIPI acks: orig: 0x0, now: 0x0"@/Library/Caches/com.apple.xbs/Sources/xnu/xnu-3248.73.11/osfmk/x86_64/pmap.c:2648
Backtrace (CPU 0), Frame : Return Address
0xffffff91f2fabb50 : 0xffffff80082dab52
0xffffff91f2fabbd0 : 0xffffff80083ad68f
0xffffff91f2fabc70 : 0xffffff80083b45db
0xffffff91f2fabd60 : 0xffffff80083b532c
0xffffff91f2fabdd0 : 0xffffff8008360fed
0xffffff91f2fabf00 : 0xffffff800835648c
0xffffff91f2fabf30 : 0xffffff7f88f2576a
0xffffff91f2fabf60 : 0xffffff8008828341
0xffffff91f2fabfb0 : 0xffffff80083ec3f6
Kernel Extensions in backtrace:
com.apple.kec.pthread(1.0)[39D0B4EB-B7F4-3891-96C2-F8B886656C8A]@0xffffff7f88f24000->0xffffff7f88f30fff

BSD process name corresponding to current thread: iTunes

Mac OS version:
15G22010

Kernel version:
Darwin Kernel Version 15.6.0: Thu Jun 21 20:07:40 PDT 2018; root:xnu-3248.73.11~1/RELEASE_X86_64
Kernel UUID: 7564B0E7-EB5D-3887-BA79-59C870165AB1
Kernel slide: 0x0000000008000000
Kernel text base: 0xffffff8008200000
__HIB text base: 0xffffff8008100000
System model name: MacPro3,1 (Mac-F42C88C8)

System uptime in nanoseconds: 591983976095
last loaded kext at 59670330049: com.apple.driver.AudioAUUC 1.70 (addr 0xffffff7f8a473000, size 32768)
last unloaded kext at 289457858372: com.apple.driver.AppleUSBMergeNub 900.4.1 (addr 0xffffff7f89982000, size 12288)
loaded kexts:
com.malwarebytes.mbam.rtprotection 3.4.29
com.paragon-software.filesystems.ntfs 23.0.15
com.apple.driver.AudioAUUC 1.70
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.filesystems.autofs 3.0
com.apple.iokit.CSRBluetoothHostControllerUSBTransport 4.4.6f4
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.driver.AppleMCCSControl 1.2.13
com.apple.driver.pmtelemetry 1
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.driver.AppleHDA 274.12
com.apple.GeForceTesla 10.0.0
com.apple.iokit.IOBluetoothSerialManager 4.4.6f4
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHV 1
com.apple.driver.AppleLPC 3.1
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.iokit.SCSITaskUserClient 3.7.7
com.apple.driver.AppleIntel8254XEthernet 3.1.4b1
com.apple.iokit.IOAHCIBlockStorage 2.8.5
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.driver.AppleFWOHCI 5.5.4
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0
com.apple.BootCache 38
com.apple.driver.AirPort.Brcm4331 800.21.30
com.apple.driver.usb.AppleUSBEHCIPCI 1.0.1
com.apple.driver.usb.AppleUSBUHCIPCI 1.0.1
com.apple.driver.AppleAHCIPort 3.1.8
com.apple.driver.AppleIntelPIIXATA 2.5.1
com.apple.driver.AppleACPIButtons 4.0
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 4.0
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0
com.apple.nke.applicationfirewall 163
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 218.0.0
com.apple.kext.triggers 1.0
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.4.6f4
com.apple.driver.AppleSMBusController 1.0.14d1
com.apple.driver.DspFuncLib 274.12
com.apple.kext.OSvKernDSPLib 525
com.apple.iokit.IOSurface 108.3.2
com.apple.nvidia.classic.NVDANV50HalTesla 10.0.0
com.apple.nvidia.classic.NVDAResmanTesla 10.0.0
com.apple.iokit.IOSerialFamily 11
com.apple.iokit.IOBluetoothFamily 4.4.6f4
com.apple.driver.CoreCaptureResponder 1
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.iokit.IOFireWireIP 2.2.6
com.apple.driver.AppleHDAController 274.12
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOHDAFamily 274.12
com.apple.iokit.IOAudioFamily 204.4
com.apple.vecLib.kext 1.2.0
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.driver.AppleSMC 3.1.9
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.IOPlatformPluginFamily 6.0.0d7
com.apple.driver.usb.IOUSBHostHIDDevice 1.0.1
com.apple.driver.usb.cdc 5.0.0
com.apple.driver.usb.networking 5.0.0
com.apple.driver.usb.AppleUSBHostCompositeDevice 1.0.1
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.7
com.apple.iokit.IOBDStorageFamily 1.8
com.apple.iokit.IODVDStorageFamily 1.8
com.apple.iokit.IOCDStorageFamily 1.8
com.apple.driver.CoreStorage 517.50.1
com.apple.iokit.IOATAPIProtocolTransport 3.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.7
com.apple.iokit.IOFireWireFamily 4.6.1
com.apple.iokit.IO80211Family 1110.26
com.apple.iokit.IONetworkingFamily 3.2
com.apple.driver.corecapture 1.0.4
com.apple.driver.usb.AppleUSBUHCI 1.0.1
com.apple.driver.usb.AppleUSBEHCI 1.0.1
com.apple.iokit.IOAHCIFamily 2.8.1
com.apple.iokit.IOATAFamily 2.5.3
com.apple.iokit.IOUSBFamily 900.4.1
com.apple.iokit.IOUSBHostFamily 1.0.1
com.apple.driver.AppleUSBHostMergeProperties 1.0.1
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 417.4
com.apple.iokit.IOStorageFamily 2.1
com.apple.iokit.IOReportFamily 31
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 4.0
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
Model: MacPro3,1, BootROM MP31.006C.B05, 8 processors, Quad-Core Intel Xeon, 2.8 GHz, 16 GB, SMC 1.25f4
Graphics: NVIDIA GeForce 8800 GT, NVIDIA GeForce 8800 GT, PCIe, 512 MB
Memory Module: DIMM Riser B/DIMM 1, 8 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x333648544631473732465A38304543314436
Memory Module: DIMM Riser A/DIMM 1, 8 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x333648544631473732465A38304543314436
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8E), Broadcom BCM43xx 1.0 (5.106.98.102.30)
Bluetooth: Version 4.4.6f4, 3 services, 17 devices, 1 incoming serial ports
PCI Card: NVIDIA GeForce 8800 GT, Display Controller, Slot-1
Serial ATA Device: OWC Mercury Electra 6G SSD, 240.06 GB
Serial ATA Device: ST3320820AS_P, 320.07 GB
Serial ATA Device: Samsung SSD 860 EVO 500GB, 500.11 GB
Serial ATA Device: Samsung SSD 850 EVO 500GB, 500.11 GB
Parallel ATA Device: OPTIARC DVD RW AD-7170A
USB Device: USB Bus
USB Device: USB Bus
USB Device: Wireless Receiver
USB Device: Wireless Mouse
USB Device: USB Bus
USB Device: Bluetooth HCI
USB Device: USB Bus
USB Device: USB 2.0 Bus
FireWire Device: built-in_hub, Up to 800 Mb/sec
Thunderbolt Bus:

 

[ntac]

I also want to add that my iPhone Xr's iTunes was also acting weird at the same time...It would play songs out of the internal speaker but out of the lightning bolt HP adapter it sounded very compressed and lacked a wide spectrum of mid range frequencies. It mysteriously started playing fine again after 6-8 hours...

 

[ntac]

Hung up again with this script at reboot,
Anonymous UUID: 880A19E1-E634-0290-5176-D6726E9FB3E8

Sun May 19 20:12:26 2019

*** Panic Report ***
panic(cpu 1 caller 0xffffff7f845eea7f): NVRM[0/2:0:0]: Read Error 0x00070000: CFG 0x061110de 0x00100402 0x92000000, BAR0 0x92000000 0xffffff91ef9de000 0x092880a2, D0, P0/2
Backtrace (CPU 1), Frame : Return Address
0xffffff91ee47ab80 : 0xffffff80038dab52
0xffffff91ee47ac00 : 0xffffff7f845eea7f
0xffffff91ee47acc0 : 0xffffff7f849078d8
0xffffff91ee47ad00 : 0xffffff7f8483b3a4
0xffffff91ee47ad50 : 0xffffff7f848e9079
0xffffff91ee47ae80 : 0xffffff7f848e8a32
0xffffff91ee47af70 : 0xffffff7f8472f467
0xffffff91ee47b0c0 : 0xffffff7f8472e545
0xffffff91ee47b1f0 : 0xffffff7f848ec1b3
0xffffff91ee47b290 : 0xffffff7f848ec545
0xffffff91ee47b420 : 0xffffff7f849306c0
0xffffff91ee47b550 : 0xffffff7f846e0682
0xffffff91ee47b590 : 0xffffff7f846df424
0xffffff91ee47b5e0 : 0xffffff7f848f23f4
0xffffff91ee47b640 : 0xffffff7f848eadb4
0xffffff91ee47b7d0 : 0xffffff7f848f7dd0
0xffffff91ee47b820 : 0xffffff7f846a35c0
0xffffff91ee47b870 : 0xffffff7f845cd9ca
0xffffff91ee47b930 : 0xffffff7f845cbd98
0xffffff91ee47b980 : 0xffffff7f845c9075
0xffffff91ee47b9b0 : 0xffffff7f845c900c
0xffffff91ee47ba50 : 0xffffff7f845f31ed
0xffffff91ee47bc50 : 0xffffff7f845f42e7
0xffffff91ee47bd20 : 0xffffff7f857b313d
0xffffff91ee47bd40 : 0xffffff7f857b2da0
0xffffff91ee47bd60 : 0xffffff7f857b4354
0xffffff91ee47be90 : 0xffffff7f857a1f3f
0xffffff91ee47beb0 : 0xffffff7f857da952
0xffffff91ee47bed0 : 0xffffff7f857daa7d
0xffffff91ee47bef0 : 0xffffff8003eb4e86
0xffffff91ee47bf40 : 0xffffff8003eb2cf1
0xffffff91ee47bf80 : 0xffffff8003eb2de6
0xffffff91ee47bfb0 : 0xffffff80039ca3f7
Kernel Extensions in backtrace:
com.apple.nvidia.classic.NVDAResmanTesla(10.0)[78C84D68-23A9-3597-9AFC-E91B44E5A5B5]@0xffffff7f8459d000->0xffffff7f84808fff
dependency: com.apple.iokit.IOPCIFamily(2.9)[5F5B9213-0BE4-33DA-9DC6-5859D824DC7D]@0xffffff7f841c9000
dependency: com.apple.iokit.IONDRVSupport(2.4.1)[4EB2843C-C821-3AD0-B333-575FD6ED6FB1]@0xffffff7f8458d000
dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[A360453D-2050-3C49-A549-AC0DD5E87917]@0xffffff7f84546000
com.apple.nvidia.classic.NVDANV50HalTesla(10.0)[07A95AE2-5869-3389-ACC8-A9675B47ACA4]@0xffffff7f84814000->0xffffff7f84abffff
dependency: com.apple.nvidia.classic.NVDAResmanTesla(10.0.0)[78C84D68-23A9-3597-9AFC-E91B44E5A5B5]@0xffffff7f8459d000
dependency: com.apple.iokit.IOPCIFamily(2.9)[5F5B9213-0BE4-33DA-9DC6-5859D824DC7D]@0xffffff7f841c9000
com.apple.GeForceTesla(10.0)[6A9CAF5A-362D-336A-8F00-1DB765119C7D]@0xffffff7f8577c000->0xffffff7f85847fff
dependency: com.apple.iokit.IOPCIFamily(2.9)[5F5B9213-0BE4-33DA-9DC6-5859D824DC7D]@0xffffff7f841c9000
dependency: com.apple.iokit.IONDRVSupport(2.4.1)[4EB2843C-C821-3AD0-B333-575FD6ED6FB1]@0xffffff7f8458d000
dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[A360453D-2050-3C49-A549-AC0DD5E87917]@0xffffff7f84546000
dependency: com.apple.nvidia.classic.NVDAResmanTesla(10.0.0)[78C84D68-23A9-3597-9AFC-E91B44E5A5B5]@0xffffff7f8459d000

BSD process name corresponding to current thread: kernel_task

Mac OS version:
15G22010

Kernel version:
Darwin Kernel Version 15.6.0: Thu Jun 21 20:07:40 PDT 2018; root:xnu-3248.73.11~1/RELEASE_X86_64
Kernel UUID: 7564B0E7-EB5D-3887-BA79-59C870165AB1
Kernel slide: 0x0000000003600000
Kernel text base: 0xffffff8003800000
__HIB text base: 0xffffff8003700000
System model name: MacPro3,1 (Mac-F42C88C8)

System uptime in nanoseconds: 274815547966
last loaded kext at 58216913059: com.malwarebytes.mbam.rtprotection 3.4.29 (addr 0xffffff7f8629d000, size 40960)
last unloaded kext at 133785897058: com.apple.driver.AppleUSBMergeNub 900.4.1 (addr 0xffffff7f84f82000, size 12288)
loaded kexts:
com.malwarebytes.mbam.rtprotection 3.4.29
com.paragon-software.filesystems.ntfs 23.0.15
com.apple.driver.AudioAUUC 1.70
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.filesystems.autofs 3.0
com.apple.iokit.CSRBluetoothHostControllerUSBTransport 4.4.6f4
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.driver.pmtelemetry 1
com.apple.driver.AppleMCCSControl 1.2.13
com.apple.driver.AppleHDA 274.12
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.GeForceTesla 10.0.0
com.apple.iokit.IOBluetoothSerialManager 4.4.6f4
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHV 1
com.apple.driver.AppleLPC 3.1
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.iokit.SCSITaskUserClient 3.7.7
com.apple.iokit.IOAHCIBlockStorage 2.8.5
com.apple.driver.AppleIntel8254XEthernet 3.1.4b1
com.apple.driver.AppleFWOHCI 5.5.4
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0
com.apple.BootCache 38
com.apple.driver.AppleAHCIPort 3.1.8
com.apple.driver.usb.AppleUSBEHCIPCI 1.0.1
com.apple.driver.AirPort.Brcm4331 800.21.30
com.apple.driver.usb.AppleUSBUHCIPCI 1.0.1
com.apple.driver.AppleIntelPIIXATA 2.5.1
com.apple.driver.AppleACPIButtons 4.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 4.0
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0
com.apple.nke.applicationfirewall 163
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 218.0.0
com.apple.kext.triggers 1.0
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.4.6f4
com.apple.driver.AppleSMBusController 1.0.14d1
com.apple.driver.DspFuncLib 274.12
com.apple.kext.OSvKernDSPLib 525
com.apple.iokit.IOSurface 108.3.2
com.apple.nvidia.classic.NVDANV50HalTesla 10.0.0
com.apple.nvidia.classic.NVDAResmanTesla 10.0.0
com.apple.iokit.IOSerialFamily 11
com.apple.iokit.IOBluetoothFamily 4.4.6f4
com.apple.driver.CoreCaptureResponder 1
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.driver.AppleHDAController 274.12
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOHDAFamily 274.12
com.apple.iokit.IOAudioFamily 204.4
com.apple.vecLib.kext 1.2.0
com.apple.iokit.IOFireWireIP 2.2.6
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.driver.AppleSMC 3.1.9
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.IOPlatformPluginFamily 6.0.0d7
com.apple.driver.usb.IOUSBHostHIDDevice 1.0.1
com.apple.driver.usb.cdc 5.0.0
com.apple.driver.usb.networking 5.0.0
com.apple.driver.usb.AppleUSBHostCompositeDevice 1.0.1
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.7
com.apple.iokit.IOBDStorageFamily 1.8
com.apple.iokit.IODVDStorageFamily 1.8
com.apple.iokit.IOCDStorageFamily 1.8
com.apple.driver.CoreStorage 517.50.1
com.apple.iokit.IOATAPIProtocolTransport 3.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.7
com.apple.iokit.IOFireWireFamily 4.6.1
com.apple.iokit.IOAHCIFamily 2.8.1
com.apple.iokit.IO80211Family 1110.26
com.apple.iokit.IONetworkingFamily 3.2
com.apple.driver.corecapture 1.0.4
com.apple.driver.usb.AppleUSBUHCI 1.0.1
com.apple.driver.usb.AppleUSBEHCI 1.0.1
com.apple.iokit.IOATAFamily 2.5.3
com.apple.iokit.IOUSBFamily 900.4.1
com.apple.iokit.IOUSBHostFamily 1.0.1
com.apple.driver.AppleUSBHostMergeProperties 1.0.1
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 417.4
com.apple.iokit.IOStorageFamily 2.1
com.apple.iokit.IOReportFamily 31
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 4.0
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
Model: MacPro3,1, BootROM MP31.006C.B05, 8 processors, Quad-Core Intel Xeon, 2.8 GHz, 16 GB, SMC 1.25f4
Graphics: NVIDIA GeForce 8800 GT, NVIDIA GeForce 8800 GT, PCIe, 512 MB
Memory Module: DIMM Riser B/DIMM 1, 8 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x333648544631473732465A38304543314436
Memory Module: DIMM Riser A/DIMM 1, 8 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x333648544631473732465A38304543314436
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8E), Broadcom BCM43xx 1.0 (5.106.98.102.30)
Bluetooth: Version 4.4.6f4, 3 services, 17 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en2
PCI Card: NVIDIA GeForce 8800 GT, Display Controller, Slot-1
Serial ATA Device: OWC Mercury Electra 6G SSD, 240.06 GB
Serial ATA Device: ST3320820AS_P, 320.07 GB
Serial ATA Device: Samsung SSD 860 EVO 500GB, 500.11 GB
Serial ATA Device: Samsung SSD 850 EVO 500GB, 500.11 GB
Parallel ATA Device: OPTIARC DVD RW AD-7170A
USB Device: USB 2.0 Bus
USB Device: USB Bus
USB Device: Wireless Receiver
USB Device: Wireless Mouse
USB Device: USB Bus
USB Device: USB Bus
USB Device: USB Bus
USB Device: Bluetooth HCI
FireWire Device: built-in_hub, Up to 800 Mb/sec
Thunderbolt Bus:

 

[Cory Cooper]

Hello and welcome.

A few thoughts:

Cleaning/Removing Components
-It's not advised to remove anything except the drive sleds, RAM cards and the graphics card. Internal components can easily be damaged by physical handing, and anti-static precautions aren't followed in a static-controlled workspace.
-Maybe another component was unseated partially during your cleaning process?
-Did you remove the CPUs from their sockets by any chance?

RAM
-Memory module for a single pair is one in Slot 1 on the upper card and one in Slot 1 on the lower card
-If you have two pairs (4 total), put the two original in Slots 1 and 2 on the upper card, and the new pair in Slots 1 & 2 on the lower card. They are then matched pairs and interleaved properly.

SSD
-Some older Mac Pro models have issues with an SSD installed in Slot 1. You could try moving the OEM Seagate HDD back to Slot 1, and moving your startup SSD to Slot 2, and see if that resolves the kernel panic. But, sometimes that prevents the SSD from being seen as a bootable drive.

Graphics Card
-Have you tried reseating it?
-Did you install it in the original PCI slot it came out of - the bottom slot above the memory cards, Slot 1?
-The graphic distortion/pixelization leans things toward a possible failing graphics card.

Kernel Panics
-Do you still use the Paragon NTFS driver for something?
-Have you tried disabling the Malwarebytes Real-Time Protection?
-Have you tried a Safe Boot?
-Does one of the other drives have OS X that you could startup from to test for a software issue?

We'll see if we can track down the cause,

C

 

[ntac]

Thanks for the reply, I've been in Central America the last few weeks with no access to the net. When I came home I tried logging in on a guest user account and everything ran fine for about 45 minutes and then the same issues developed. I'm fairly kmowledgeable on PC architecture and have become somewhat so on the Mac pro, my last Mac before this one was a Power Mac 7100 circa '95 which I'm sure had a form factor vastly diffrent than the MPT. I had already done all that you suggested before posting bar removing Malware bites (which I'm not sure if I even need anyway), the NTFS driver was software for a Seagate 1TB usb drive for storage and moving .Mp3's from a HP to the Mac but is not being used. I did not unseat the CPU because I had no heat conductive adhesive to put back in place if I did. I did remove the clip from top the heatsink and it just slid right off; the adhesive was completely dust, did not unseat the processor thgough. I did have a cd copy of the OS but cannot find it anywhere. As of right now the machine will only try to boot up and the progress bar gets about halfway and stops a few minutes later if left on it retarts itself and continues that same cycle. I've tried rebooting in safe/recovery mode to no avail. I'm almost possitive the main issue is the GPU so I have someone who's going to drop by in the next few days with a comp card to see if it is indeed. Thanks so much again for helping and I'll be sure to let you know the resolution. Regards.

 

[Cory Cooper]

No worries...hope it was a nice trip.

Definitely let us know if the graphics card fixes the issue. I would guess it won't.

Which exact clip are you referring to on the heatsink?

I should have been more clear before when I mentioned unseating the CPUs. I should have added removing the heatsinks as well. It definitely sounds like the heatsink sliding off the CPU (if that is what happened when you removed the clip), the thermal paste being totally dried out, and not having new thermal paste reapplied could be the culprit here. If there is no thermal paste, the CPU isn't "connected" to the heatsink, thus has no way to dissipate heat. As it heats up during use, it will go into thermal protection mode and kernel panic.

Check this guide out, and let me know which step refers to the clip and the heatsink issue you were explaining:
Replacing/Upgrading Mac Pro Processors (Early 2008)

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[ntac]

Thank you , it was nice...Okay, then that wasnt the cpu that I removed the heatsink clip from. In step 35 it's the black heatsink above the real HS's. I knew those were the heatsinks , I just didn't think it through. It's been over a decade since I last removed one and on Win based forms they all look like that. The guy with the GPU never did stop by so I guess I'm on my own now, I appreciate your help! Still getting the same hangup, LB LED #3 is on ~ CPU 2 error.

 

[Cory Cooper]

OK, thanks.

Not sure what the heatsink is - probably a controller chip for the wireless cards or memory controller?

You could try the following:
SMC Reset
-Power off the Mac Pro
-Unplug everything including the power cord
-Wait 15 seconds
-Plug everything back in, and wait 5 seconds
-Power on

System Reset Button
-Press the SYS_RST switch located in the upper right-hand corner of the logic board, near the fourth drive bay
-Press this when the Mac Pro is powered on - it will restart the system, but be careful not to touch anything else

I wouldn't mess with the CPU heatsinks/CPUs, as they can be damaged fairly easily. It may have to go into the shop to diagnose further.

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