aiuto su potenziale kernel panic

[patrizio trelesio]

buongiorno a tutti
prima volta su un forum con la spiacevole sensazione di non sapere come funziona.
vi scrivo perché sto provando a riparare un iMac al quale ho cambiato la scheda di alimentazione per riavvii random, una volta ogni due settimane come anche svariate volte di seguito. purtroppo non ho risolto il problema ed eccomi qui domandandomi se qualcuno di buon cuore e conoscenze che io non ho mi possa dare una mano.

posto il resoconto che all'avvio il computer mi ha proposto e ringrazio in anticipo chiunque abbia anche solo l'intenzione di aiutarmi.

Anonymous UUID: CA6C0EC6-5BC6-B84A-4D08-3A5AF5B9DD44

Tue Dec 8 14:11:53 2020

*** Panic Report ***
Machine-check capabilities: 0x0000000000000c09
family: 6 model: 42 stepping: 7 microcode: 47
signature: 0x206a7
Intel(R) Core(TM) i5-2400S CPU @ 2.50GHz
9 error-reporting banks
Processor 0: IA32_MCG_STATUS: 0x0000000000000005
IA32_MC4_STATUS(0x411): 0xb200000000100402
Processor 1: IA32_MCG_STATUS: 0x0000000000000005
IA32_MC4_STATUS(0x411): 0xb200000000100402
Processor 2: IA32_MCG_STATUS: 0x0000000000000005
IA32_MC4_STATUS(0x411): 0xb200000000100402
Processor 3: IA32_MCG_STATUS: 0x0000000000000005
IA32_MC4_STATUS(0x411): 0xb200000000100402
mp_kdp_enter(): 11, 1, 4 TIMED-OUT WAITING FOR NMI-ACK, PROCEEDING
panic(cpu 2 caller 0xffffff8020b871da): "Machine Check at 0xffffff7fa2edf9d6, registers:\n" "CR0: 0x000000008001003b, CR2: 0x00007fdbca604000, CR3: 0x0000000024a79000, CR4: 0x00000000000626e0\n" "RAX: 0x0000000000000001, RBX: 0xffffff802d1e7780, RCX: 0x0000000000000001, RDX: 0x0000000000000000\n" "RSP: 0xffffff80bb6a3d60, RBP: 0xffffff80bb6a3d90, RSI: 0x0000000000000001, RDI: 0xffffff802d6ad8e0\n" "R8: 0xffffff802d15c600, R9: 0x0000000429a5fe9d, R10: 0x0000000000000467, R11: 0x0000000000000af5\n" "R12: 0xffffff7fa2ef4b80, R13: 0xffffff802c8f55c0, R14: 0x0000000000000148, R15: 0x0000000000000001\n" "RFL: 0x0000000000000046, RIP: 0xffffff7fa2edf9d6, CS: 0x0000000000000008, SS: 0x0000000000000010\n" "Error code: 0x0000000000000000\n"@/BuildRoot/Library/Caches/com.apple.xbs/Sources/xnu/xnu-4570.71.82.6/osfmk/i386/trap_native.c:168
Backtrace (CPU 2), Frame : Return Address
0xffffff802094d330 : 0xffffff8020a6ae56
0xffffff802094d380 : 0xffffff8020b94434
0xffffff802094d3c0 : 0xffffff8020b86604
0xffffff802094d430 : 0xffffff8020a1ce60
0xffffff802094d450 : 0xffffff8020a6a8cc
0xffffff802094d580 : 0xffffff8020a6a68c
0xffffff802094d5e0 : 0xffffff8020b871da
0xffffff802094d6d0 : 0xffffff8020a1d6df
0xffffff80bb6a3d90 : 0xffffff7fa2ed0d8f
0xffffff80bb6a3e60 : 0xffffff7fa2ecffe9
0xffffff80bb6a3f10 : 0xffffff8020b8840c
0xffffff80bb6a3f30 : 0xffffff8020a89322
0xffffff80bb6a3f80 : 0xffffff8020a898f0
0xffffff80bb6a3fa0 : 0xffffff8020a1c557
Kernel Extensions in backtrace:
com.apple.driver.AppleIntelCPUPowerManagement(220.50.1)[63A5F200-83C4-3442-AC2F-A1DE83B5FCC6]@0xffffff7fa2ece000->0xffffff7fa2ef7fff

BSD process name corresponding to current thread: kernel_task

Mac OS version:
17G14033

Kernel version:
Darwin Kernel Version 17.7.0: Mon Aug 31 22:11:23 PDT 2020; root:xnu-4570.71.82.6~1/RELEASE_X86_64
Kernel UUID: 92BEC910-BBAA-3192-BB57-39712C7D3342
Kernel slide: 0x0000000020800000
Kernel text base: 0xffffff8020a00000
__HIB text base: 0xffffff8020900000
System model name: iMac12,1 (Mac-942B5BF58194151B)

System uptime in nanoseconds: 18892129089
last loaded kext at 2100050063: com.apple.iokit.IOSCSIMultimediaCommandsDevice 404.30.3 (addr 0xffffff7fa1fcf000, size 106496)
loaded kexts:
com.apple.iokit.SCSITaskUserClient 404.30.3
com.apple.iokit.IOBluetoothUSBDFU 6.0.7f22
com.apple.driver.AppleUSBStorageCoexistentDriver 439.70.3
com.apple.driver.AppleUSBCardReader 439.70.3
com.apple.driver.AppleIRController 353
com.apple.driver.AppleFileSystemDriver 3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0
com.apple.AppleSystemPolicy 1.0
com.apple.BootCache 40
com.apple.filesystems.hfs.kext 407.50.6
com.apple.filesystems.apfs 748.51.0
com.apple.iokit.AppleBCM5701Ethernet 10.3.1
com.apple.driver.AppleAHCIPort 329.50.2
com.apple.driver.AirPort.Atheros40 700.74.5
com.apple.driver.AppleFWOHCI 5.5.9
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleACPIButtons 6.1
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 6.1
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 220.50.1
com.apple.nke.applicationfirewall 186
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 220.50.1
com.apple.iokit.IOSCSIMultimediaCommandsDevice 404.30.3
com.apple.iokit.IOBDStorageFamily 1.8
com.apple.iokit.IODVDStorageFamily 1.8
com.apple.iokit.IOCDStorageFamily 1.8
com.apple.iokit.IOAHCISerialATAPI 267.50.1
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 6.0.7f22
com.apple.iokit.IOBluetoothHostControllerUSBTransport 6.0.7f22
com.apple.iokit.IOBluetoothHostControllerTransport 6.0.7f22
com.apple.iokit.IOBluetoothFamily 6.0.7f22
com.apple.iokit.IOUSBMassStorageClass 4.0.4
com.apple.driver.usb.IOUSBHostHIDDevice 1.2
com.apple.driver.usb.cdc 5.0.0
com.apple.driver.usb.networking 5.0.0
com.apple.driver.usb.AppleUSBHostCompositeDevice 1.2
com.apple.driver.usb.AppleUSBHub 1.2
com.apple.filesystems.hfs.encodings.kext 1
com.apple.driver.AppleThunderboltDPInAdapter 5.5.5
com.apple.driver.AppleThunderboltDPOutAdapter 5.5.5
com.apple.driver.AppleThunderboltDPAdapterFamily 5.5.5
com.apple.driver.AppleThunderboltPCIDownAdapter 2.1.3
com.apple.driver.AppleXsanScheme 3
com.apple.iokit.IOAHCIBlockStorage 301.40.2
com.apple.driver.AppleThunderboltNHI 4.7.3
com.apple.iokit.IOThunderboltFamily 6.7.10
com.apple.driver.AppleUSBMergeNub 900.4.1
com.apple.iokit.IOEthernetAVBController 1.1.0
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IOAHCIFamily 288
com.apple.iokit.IO80211Family 1200.12.2
com.apple.driver.corecapture 1.0.4
com.apple.driver.usb.AppleUSBHostPacketFilter 1.0
com.apple.iokit.IOUSBFamily 900.4.1
com.apple.iokit.IOFireWireFamily 4.7.2
com.apple.driver.usb.AppleUSBUHCIPCI 1.2
com.apple.driver.usb.AppleUSBUHCI 1.2
com.apple.driver.usb.AppleUSBEHCIPCI 1.2
com.apple.driver.usb.AppleUSBEHCI 1.2
com.apple.driver.AppleEFINVRAM 2.1
com.apple.driver.AppleUSBHostMergeProperties 1.2
com.apple.driver.AppleEFIRuntime 2.1
com.apple.iokit.IOSMBusFamily 1.1
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.security.sandbox 300.0
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleEffaceableStorage 1.0
com.apple.driver.AppleKeyStore 2
com.apple.driver.AppleUSBTDM 439.70.3
com.apple.driver.AppleMobileFileIntegrity 1.0.5
com.apple.iokit.IOUSBMassStorageDriver 140.70.2
com.apple.iokit.IOSCSIBlockCommandsDevice 404.30.3
com.apple.iokit.IOSCSIArchitectureModelFamily 404.30.3
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.KernelRelayHost 1
com.apple.iokit.IOUSBHostFamily 1.2
com.apple.driver.usb.AppleUSBCommon 1.0
com.apple.driver.AppleBusPowerController 1.0
com.apple.driver.AppleSEPManager 1.0.1
com.apple.driver.IOSlaveProcessor 1
com.apple.driver.DiskImages 480.60.3
com.apple.iokit.IOStorageFamily 2.1
com.apple.iokit.IOReportFamily 31
com.apple.iokit.IOTimeSyncFamily 680.15
com.apple.iokit.IONetworkingFamily 3.4
com.apple.driver.AppleACPIPlatform 6.1
com.apple.driver.AppleSMC 3.1.9
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.pthread 1
com.apple.kec.corecrypto 1.0
com.apple.kec.Libm 1

EOF
Model: iMac12,1, BootROM 87.0.0.0.0, 4 processors, Intel Core i5, 2,5 GHz, 4 GB, SMC 1.71f22
Graphics: AMD Radeon HD 6750M, AMD Radeon HD 6750M, PCIe
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353737334348532D4348392020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353737334348532D4348392020
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x9A), Atheros 9380: 4.0.74.0-P2P
Bluetooth: Version 6.0.7f22, 3 services, 27 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: ST3500418AS, 500,11 GB
Serial ATA Device: HL-DT-STDVDRW GA32N
USB Device: USB 2.0 Bus
USB Device: FaceTime HD Camera (Built-in)
USB Device: Hub
USB Device: BRCM2046 Hub
USB Device: Bluetooth USB Host Controller
USB Device: USB 2.0 Bus
USB Device: Hub
USB Device: IR Receiver
USB Device: Internal Memory Card Reader
Thunderbolt Bus: iMac, Apple Inc., 22.1