Hi, I have a similar freezing problem.
Mac Pro 4,1 (flashed to 5,1) 2009
CPU upgraded to 5690, 3.46 Ghz
Sapphire RX580
128gb ram
NVME disk
Dual apple display monitor
At first, I suspected that it was due to high CPU temperature. CPU A diode was as high as 85 degrees and CPU B diode was not as hot, ard 60 plus degrees. I removed the heat sink of CPU A and reapplied the thermal paste. There was a slight improvement but freezing continued. I noticed that the spring fastener for northbridge (closer to the heatsink of CPU A)has popped out and I pressed it down with the heatsink as I do not have the fastener now.
Northbridge temperature is at 66 degrees currently.
I would need the experts here to help me interpret the error report. Thanks in advance.
Here is the error report:
Machine-check capabilities: 0x0000000000001c09
family: 6 model: 44 stepping: 2 microcode: 31
signature: 0x206c2
Intel(R) Xeon(R) CPU X5690 @ 3.47GHz
9 error-reporting banks
Processor 12: IA32_MCG_STATUS: 0x0000000000000004
IA32_MC1_STATUS(0x405): 0xbe00000000400e0f
IA32_MC1_ADDR(0x406): 0x000000e1e7e1e000
IA32_MC1_MISC(0x407): 0x0000000001000000
Processor 13: IA32_MCG_STATUS: 0x0000000000000004
IA32_MC1_STATUS(0x405): 0xbe00000000400e0f
IA32_MC1_ADDR(0x406): 0x000000e1e7e1e000
IA32_MC1_MISC(0x407): 0x0000000001000000
Processor 14: IA32_MCG_STATUS: 0x0000000000000004
IA32_MC1_STATUS(0x405): 0xbe00000000400e0f
IA32_MC1_ADDR(0x406): 0x000000e1e7e1e000
IA32_MC1_MISC(0x407): 0x0000000001000000
Processor 15: IA32_MCG_STATUS: 0x0000000000000004
IA32_MC1_STATUS(0x405): 0xbe00000000400e0f
IA32_MC1_ADDR(0x406): 0x000000e1e7e1e000
IA32_MC1_MISC(0x407): 0x0000000001000000
Processor 16: IA32_MCG_STATUS: 0x0000000000000004
IA32_MC1_STATUS(0x405): 0xbe00000000400e0f
IA32_MC1_ADDR(0x406): 0x000000e1e7e1e000
IA32_MC1_MISC(0x407): 0x0000000001000000
Processor 17: IA32_MCG_STATUS: 0x0000000000000004
IA32_MC1_STATUS(0x405): 0xbe00000000400e0f
IA32_MC1_ADDR(0x406): 0x000000e1e7e1e000
IA32_MC1_MISC(0x407): 0x0000000001000000
Processor 18: IA32_MCG_STATUS: 0x0000000000000004
IA32_MC1_STATUS(0x405): 0xbe00000000400e0f
IA32_MC1_ADDR(0x406): 0x000000e1e7e1e000
IA32_MC1_MISC(0x407): 0x0000000001000000
Processor 19: IA32_MCG_STATUS: 0x0000000000000004
IA32_MC1_STATUS(0x405): 0xbe00000000400e0f
IA32_MC1_ADDR(0x406): 0x000000e1e7e1e000
IA32_MC1_MISC(0x407): 0x0000000001000000
Processor 20: IA32_MCG_STATUS: 0x0000000000000004
IA32_MC1_STATUS(0x405): 0xbe00000000400e0f
IA32_MC1_ADDR(0x406): 0x000000e1e7e1e000
IA32_MC1_MISC(0x407): 0x0000000001000000
Processor 21: IA32_MCG_STATUS: 0x0000000000000004
IA32_MC1_STATUS(0x405): 0xbe00000000400e0f
IA32_MC1_ADDR(0x406): 0x000000e1e7e1e000
IA32_MC1_MISC(0x407): 0x0000000001000000
Processor 22: IA32_MCG_STATUS: 0x0000000000000004
IA32_MC1_STATUS(0x405): 0xbe00000000400e0f
IA32_MC1_ADDR(0x406): 0x000000e1e7e1e000
IA32_MC1_MISC(0x407): 0x0000000001000000
Processor 23: IA32_MCG_STATUS: 0x0000000000000004
IA32_MC1_STATUS(0x405): 0xbe00000000400e0f
IA32_MC1_ADDR(0x406): 0x000000e1e7e1e000
IA32_MC1_MISC(0x407): 0x0000000001000000
mp_kdp_enter() timed-out on cpu 5, NMI-ing
mp_kdp_enter() NMI pending on cpus: 0 1 2 3 4 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
mp_kdp_enter() timed-out during locked wait after NMI;expected 24 acks but received 1 after 16942393 loops in 1728999779 ticks
panic(cpu 5 caller 0xffffff80125cf027): Machine Check at 0xffffff8013a8f3e1, registers:
CR0: 0x000000008001003b, CR2: 0x000000010bd59000, CR3: 0x00000000170fb000, CR4: 0x00000000000226e0
RAX: 0x0000000000000001, RBX: 0xffffff8f841a4d00, RCX: 0x0000000000000001, RDX: 0x0000000000000000
RSP: 0xffffff890f223d60, RBP: 0xffffff890f223d90, RSI: 0xffffff8013aa2c60, RDI: 0x0000000000000001
R8: 0xffffff8013aa2c60, R9: 0x000001957c560f58, R10: 0x0000000000000004, R11: 0x0000000000000000
R12: 0xffffff8013aab640, R13: 0xffffff9de2ed8300, R14: 0x0000000000000001, R15: 0x0000000000000148
RFL: 0x0000000000000046, RIP: 0xffffff8013a8f3e1, CS: 0x0000000000000008, SS: 0x0000000000000000
Error code: 0x0000000000000000
@trap_native.c:168
Panicked task 0xffffff944e563670: 264 threads: pid 0: kernel_task
Backtrace (CPU 5), panicked thread: 0xffffff9918d90540, Frame : Return Address
0xffffff801230ea40 : 0xffffff801247befd mach_kernel : _handle_debugger_trap + 0x41d
0xffffff801230ea90 : 0xffffff80125deb96 mach_kernel : _kdp_i386_trap + 0x116
0xffffff801230ead0 : 0xffffff80125cdf03 mach_kernel : _kernel_trap + 0x4d3
0xffffff801230eb20 : 0xffffff801241ba70 mach_kernel : _return_from_trap + 0xe0
0xffffff801230eb40 : 0xffffff801247c2cd mach_kernel : _DebuggerTrapWithState + 0xad
0xffffff801230ec60 : 0xffffff801247ba86 mach_kernel : _panic_trap_to_debugger + 0x2b6
0xffffff801230ecc0 : 0xffffff8012d15103 mach_kernel : _panic + 0x84
0xffffff801230edb0 : 0xffffff80125cf027 mach_kernel : _sync_iss_to_iks_unconditionally + 0x167
0xffffff801230eec0 : 0xffffff8012d1cf0c mach_kernel : _panic_machine_check64 + 0x15
0xffffff801230eed0 : 0xffffff801241c2cf mach_kernel : _hndl_machine_check + 0xf
0xffffff890f223d90 : 0xffffff8013a87c78 com.apple.driver.AppleIntelCPUPowerManagement : _cstateIdle + 0x80d
0xffffff890f223e60 : 0xffffff8013a86fe5 com.apple.driver.AppleIntelCPUPowerManagement : _i386_MachineIdle + 0xfa4
0xffffff890f223f20 : 0xffffff80125d0506 mach_kernel : _machine_idle + 0x1c6
0xffffff890f223f40 : 0xffffff80124aba7a mach_kernel : _processor_idle + 0x10a
0xffffff890f223f80 : 0xffffff80124abc79 mach_kernel : _idle_thread + 0x49
0xffffff890f223fa0 : 0xffffff801241b19e mach_kernel : _call_continuation + 0x2e
Kernel Extensions in backtrace:
com.apple.driver.AppleIntelCPUPowerManagement(222.0)[E68F6676-55DE-3BB1-87A7-9EBFD3A6D77D]@0xffffff8013a85000->0xffffff8013aa1fff
Process name corresponding to current thread (0xffffff9918d90540): kernel_task
Boot args: keepsyms=1 debug=0x100 -lilubetaall -btlfxallowanyaddr ipc_control_port_options=0 -nokcmismatchpanic
Mac OS version:
21G651
Kernel version:
Darwin Kernel Version 21.6.0: Thu Jun 8 23:57:12 PDT 2023; root:xnu-8020.240.18.701.6~1/RELEASE_X86_64
Kernel UUID: 0260200C-8B24-3AA3-AC23-7BD6AC6CF3E2
KernelCache slide: 0x0000000012200000
KernelCache base: 0xffffff8012400000
Kernel slide: 0x0000000012210000
Kernel text base: 0xffffff8012410000
__HIB text base: 0xffffff8012300000
System model name: MacPro5,1 (Mac-27AD2F918AE68F61)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0
System uptime in nanoseconds: 1742552344126
Last Sleep: absolute base_tsc base_nano
Uptime : 0x00000195b836b0b5
Sleep : 0x000000b49253a3e0 0x0000002e53e0cf34 0x0000000000000000
Wake : 0x000000b496d9e01c 0x00000000b702cb14 0x000000b493edd035
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: 0xffffff8910b94000 - 0xffffffa910b94000
. PGZ : 0xffffff8910b94000 - 0xffffff8920b95000
. VM : 0xffffff8920b95000 - 0xffffff8deb1fb000
. RO : 0xffffff8deb1fb000 - 0xffffff8f83ec7000
. GEN0 : 0xffffff8f83ec7000 - 0xffffff944e52d000
. GEN1 : 0xffffff944e52d000 - 0xffffff9918b93000
. GEN2 : 0xffffff9918b93000 - 0xffffff9de31f9000
. GEN3 : 0xffffff9de31f9000 - 0xffffffa2ad860000
. DATA : 0xffffffa2ad860000 - 0xffffffa910b94000
Metadata: 0xffffff80f03e2000 - 0xffffff81103e2000
Bitmaps : 0xffffff81103e2000 - 0xffffff81303e2000
Can any of the experts help me, pls?