Mac Pro 6,1 is constantly restarting

Hi everyone,

I recently purchased a used 2013 Mac Pro as I've always wanted one, but have since run into some issues. I'm running on the latest version of Monterey, have the 12-Core CPU (original), and it's been upgraded to a 512GB NVME with adapter, along with 64GB of Crucial RAM.

During light to normal use (I'm not what you'd describe as a "Pro" user - the heaviest task i'll do in any given day is editing RAW images in Lightroom) - The computer is just constantly restarting and rebooting to a message saying that it restarted due to an error (shared at the bottom of my post)

Here’s what I’ve tried so far:

• SMC reset
• PRAM reset
• Erased and clean-installed macOS Monterey
• Swapped in an original Apple SSD from a Macbook Pro 2015
• Brought it to an Apple Store (in Paris), where a RAM-related issue was suspected but no further diagnostic given.
• Tried multiple RAM combinations in different slots
• Installed new RAM from OWC
• Ran extended memory tests overnight (no issues reported)
• Used EtreCheck (no major flags)
• Ran CPU stress tests (Endurance, Cinebench, Heaven, etc. – all completed without crashing)
• Reapplied thermal paste and thoroughly cleaned the machine internally.....

Here is the error report - I've ordered a new CPU and will install it once it arrives as my research as shown that this is the culprit but has anyone else had this same situation and fixed it?

Thank you!!!

---------

"Machine-check capabilities: 0x0000000001000c1d

family: 6 model: 62 stepping: 4 microcode: 1070

signature: 0x306e4

Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz

29 error-reporting banks

Processor 0: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 1: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 2: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 3: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 4: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 5: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 6: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 7: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 8: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 9: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 10: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 11: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 12: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 13: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 14: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 15: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 16: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 17: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 18: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 19: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 20: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 21: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 22: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

Processor 23: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC22_STATUS(0x459): 0xbe200000000b110a

IA32_MC22_ADDR(0x45a):   0x0000000f35d18c00

IA32_MC22_MISC(0x45b):   0x98fe28508c800086

mp_kdp_enter() timed-out on cpu 16, NMI-ing

mp_kdp_enter() NMI pending on cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 19 20 21 22 23

mp_kdp_enter() timed-out during locked wait after NMI;expected 24 acks but received 1 after 11880661 loops in 1350000000 ticks

panic(cpu 16 caller 0xffffff8012fcd1b7): Machine Check at 0xffffff801449638f, registers:

CR0: 0x000000008001003b, CR2: 0x0000000103099000, CR3: 0x000000002715c000, CR4: 0x00000000001626e0

RAX: 0x0000000000000020, RBX: 0xffffff9067138680, RCX: 0x0000000000000001, RDX: 0x0000000000000000

RSP: 0xfffffff51408bd60, RBP: 0xfffffff51408bd90, RSI: 0xffffff80144a2c60, RDI: 0x0000000000000006

R8:  0xffffff80144a2c60, R9:  0x00000b335221d8cd, R10: 0x0000000000000005, R11: 0x0000000000000000

R12: 0xffffff80144ab640, R13: 0xffffff90670f1700, R14: 0x0000000000000006, R15: 0x00000000000007b0

RFL: 0x0000000000000046, RIP: 0xffffff801449638f, CS:  0x0000000000000008, SS:  0x0000000000000010

Error code: 0x0000000000000000

@trap_native.c:168

Panicked task 0xffffff99fe08b670: 284 threads: pid 0: kernel_task

Backtrace (CPU 16), panicked thread: 0xffffff9066e41aa0, Frame : Return Address

0xffffff8012d14240 : 0xffffff8012e79a3d

0xffffff8012d14290 : 0xffffff8012fdcd26

0xffffff8012d142d0 : 0xffffff8012fcc093

0xffffff8012d14320 : 0xffffff8012e19a90

0xffffff8012d14340 : 0xffffff8012e79e0d

0xffffff8012d14460 : 0xffffff8012e795c6

0xffffff8012d144c0 : 0xffffff8013714a73

0xffffff8012d145b0 : 0xffffff8012fcd1b7

0xffffff8012d146c0 : 0xffffff801371c87c

0xffffff8012d146d0 : 0xffffff8012e1a2ef

0xfffffff51408bd90 : 0xffffff8014487c78

0xfffffff51408be60 : 0xffffff8014486fe5

0xfffffff51408bf20 : 0xffffff8012fce696

0xfffffff51408bf40 : 0xffffff8012ea95da

0xfffffff51408bf80 : 0xffffff8012ea97d9

0xfffffff51408bfa0 : 0xffffff8012e1919e

      Kernel Extensions in backtrace:

         com.apple.driver.AppleIntelCPUPowerManagement(222.0)[CC893FDB-3108-362B-9649-9AE9BD523480]@0xffffff8014485000->0xffffff80144a1fff

Process name corresponding to current thread (0xffffff9066e41aa0): kernel_task

Mac OS version:

21H1320

Kernel version:

Darwin Kernel Version 21.6.0: Mon Jun 24 00:56:10 PDT 2024; root:xnu-8020.240.18.709.2~1/RELEASE_X86_64

Kernel UUID: AAF3C70C-3331-335A-96FB-D338CFE178F0

KernelCache slide: 0x0000000012c00000

KernelCache base:  0xffffff8012e00000

Kernel slide:      0x0000000012c10000

Kernel text base:  0xffffff8012e10000

__HIB  text base: 0xffffff8012d00000

System model name: MacPro6,1 (Mac-F60DEB81FF30ACF6)

System shutdown begun: NO

Panic diags file available: YES (0x0)

Hibernation exit count: 0

System uptime in nanoseconds: 12316075057188

Last Sleep:           absolute           base_tsc          base_nano

  Uptime  : 0x00000b338f47702b

  Sleep   : 0x0000000000000000 0x0000000000000000 0x0000000000000000

  Wake    : 0x0000000000000000 0x000004ecb5975a73 0x0000000000000000

Compressor Info: 0% of compressed pages limit (OK) and 0% of segments limit (OK) with 0 swapfiles and OK swap space

Zone info:

  Zone map: 0xffffff8062daa000 - 0xffffffa062daa000

  . PGZ   : 0xffffff8062daa000 - 0xffffff806adab000

  . VM    : 0xffffff806adab000 - 0xffffff8536744000

  . RO    : 0xffffff8536744000 - 0xffffff86cfa77000

  . GEN0  : 0xffffff86cfa77000 - 0xffffff8b9b410000

  . GEN1  : 0xffffff8b9b410000 - 0xffffff9066da9000

  . GEN2  : 0xffffff9066da9000 - 0xffffff9532742000

  . GEN3  : 0xffffff9532742000 - 0xffffff99fe0dc000

  . DATA  : 0xffffff99fe0dc000 - 0xffffffa062daa000

  Metadata: 0xffffffffc7fee000 - 0xffffffffe7fee000

  Bitmaps : 0xffffffffe7fee000 - 0xfffffffffffee000

last started kext at 117994623370: @filesystems.smbfs 4.0 (addr 0xffffff7fac331000, size 483328)

last stopped kext at 419351672274: >!AThunderboltEDMSink 5.0.3 (addr 0xffffff7fabbc0000, size 32768)

loaded kexts:

@filesystems.smbfs 4.0

>!ATopCaseHIDEventDriver 5450.8

>AudioAUUC 1.70

>!AUpstreamUserClient 3.6.9

>!AMCCSControl 1.16

@kext.AMDFramebuffer 4.0.8

>!APlatformEnabler 2.7.0d0

>X86PlatformShim 1.0.0

>AGPM 129

>!AHDA 340.2

@filesystems.autofs 3.0

@kext.AMDRadeonX4000 4.0.8

@kext.AMDRadeonServiceManager 4.0.8

>eficheck 1

>!AGraphicsDevicePolicy 6.5.7

>!ALPC 3.1

@AGDCPluginDisplayMet"