Constant 27" iMac Crashes

Discussion in 'iMac' started by imac1776, Oct 25, 2014.

  1. imac1776 macrumors newbie

    Joined:
    Oct 25, 2014
    #1
    Our house took a close lightning strike and all electronics fried. I took my mid-2010 27" Imac to Apple store in Austin. They replaced power supply and logic board. After repair I noticed the dreaded loud buzzing power supply and the computer started crashing once a week, then a day, and now multiple times a day! Of course it is now after the warranty period of repairs. Can anyone tell me what the crash report actually means? If it is the ps I will just replace it myself rather than go back to Apple.
    Thanks!


    Anonymous UUID: 64A195F7-8479-5889-8C83-63595F21DA01

    Sat Oct 25 07:34:55 2014

    *** Panic Report ***
    panic(cpu 2 caller 0xffffff80005ff683): "TLB invalidation IPI timeout: " "CPU(s) failed to respond to interrupts, unresponsive CPU bitmap: 0x8, NMIPI acks: orig: 0x0, now: 0x0"@/SourceCache/xnu/xnu-2782.1.97/osfmk/x86_64/pmap.c:2471
    Backtrace (CPU 2), Frame : Return Address
    0xffffff8109acbb80 : 0xffffff800053a811
    0xffffff8109acbc00 : 0xffffff80005ff683
    0xffffff8109acbc90 : 0xffffff8000605913
    0xffffff8109acbd80 : 0xffffff80006065e5
    0xffffff8109acbde0 : 0xffffff80005b6b4a
    0xffffff8109acbef0 : 0xffffff80005acd2c
    0xffffff8109acbf20 : 0xffffff7f812647cb
    0xffffff8109acbf50 : 0xffffff8000a4dcb2
    0xffffff8109acbfb0 : 0xffffff800063ac46
    Kernel Extensions in backtrace:
    com.apple.kec.pthread(1.0)[DB4D4632-FD2B-3FAE-86D3-3432DCDB7FA9]@0xffffff7f81263000->0xffffff7f8126efff

    BSD process name corresponding to current thread: firefox

    Mac OS version:
    14A389

    Kernel version:
    Darwin Kernel Version 14.0.0: Fri Sep 19 00:26:44 PDT 2014; root:xnu-2782.1.97~2/RELEASE_X86_64
    Kernel UUID: 89E10306-BC78-3A3B-955C-7C4922577E61
    Kernel slide: 0x0000000000200000
    Kernel text base: 0xffffff8000400000
    __HIB text base: 0xffffff8000300000
    System model name: iMac11,3 (Mac-F2238BAE)

    System uptime in nanoseconds: 816324685275
    last loaded kext at 270994615040: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7f83021000, size 69632)
    last unloaded kext at 331932210642: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7f83021000, size 61440)
    loaded kexts:
    com.Cycling74.driver.Soundflower 1.5.2
    com.rim.driver.BlackBerryUSBDriverInt 0.0.64
    com.apple.driver.AppleHWSensor 1.9.5d0
    com.apple.driver.AGPM 100.14.37
    com.apple.driver.AudioAUUC 1.70
    com.apple.filesystems.autofs 3.0
    com.apple.iokit.IOBluetoothSerialManager 4.3.0f10
    com.apple.driver.AppleOSXWatchdog 1
    com.apple.driver.AppleMikeyHIDDriver 124
    com.apple.driver.AppleHDA 266.5
    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.AppleMikeyDriver 266.5
    com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
    com.apple.driver.AppleUpstreamUserClient 3.6.1
    com.apple.kext.AMDFramebuffer 1.2.8
    com.apple.AMDRadeonX3000 1.2.8
    com.apple.kext.AMD5000Controller 1.2.8
    com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.0f10
    com.apple.driver.AppleBacklight 170.4.12
    com.apple.driver.AppleMCCSControl 1.2.10
    com.apple.driver.AppleUSBCardReader 3.5.0
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
    com.apple.BootCache 35
    com.apple.driver.AppleIRController 327.5
    com.apple.iokit.SCSITaskUserClient 3.7.0
    com.apple.driver.XsanFilter 404
    com.apple.iokit.IOAHCIBlockStorage 2.6.5
    com.apple.driver.AppleUSBHub 705.4.1
    com.apple.driver.AppleFWOHCI 5.5.2
    com.apple.driver.AirPort.Atheros40 700.74.5
    com.apple.driver.AppleAHCIPort 3.0.7
    com.apple.iokit.AppleBCM5701Ethernet 10.1.2b3
    com.apple.driver.AppleUSBEHCI 705.4.14
    com.apple.driver.AppleRTC 2.0
    com.apple.driver.AppleACPIButtons 3.1
    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.kext.triggers 1.0
    com.apple.iokit.IOSerialFamily 11
    com.apple.driver.DspFuncLib 266.5
    com.apple.kext.OSvKernDSPLib 1.15
    com.apple.iokit.IOAudioFamily 200.6
    com.apple.vecLib.kext 1.2.0
    com.apple.iokit.IOSurface 97
    com.apple.iokit.IOFireWireIP 2.2.6
    com.apple.driver.AppleHDAController 266.5
    com.apple.iokit.IOHDAFamily 266.5
    com.apple.driver.AppleSMBusPCI 1.0.12d1
    com.apple.driver.AppleSMC 3.1.9
    com.apple.driver.IOPlatformPluginLegacy 1.0.0
    com.apple.driver.IOPlatformPluginFamily 5.8.0d49
    com.apple.iokit.IOAcceleratorFamily2 156.4
    com.apple.kext.AMDSupport 1.2.8
    com.apple.AppleGraphicsDeviceControl 3.7.21
    com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.0f10
    com.apple.iokit.IOBluetoothFamily 4.3.0f10
    com.apple.iokit.IOUSBUserClient 705.4.0
    com.apple.driver.AppleBacklightExpert 1.1.0
    com.apple.iokit.IONDRVSupport 2.4.1
    com.apple.driver.AppleSMBusController 1.0.13d1
    com.apple.iokit.IOGraphicsFamily 2.4.1
    com.apple.driver.AppleUSBHIDKeyboard 175.5
    com.apple.driver.AppleHIDKeyboard 175.5
    com.apple.iokit.IOUSBHIDDriver 705.4.0
    com.apple.driver.AppleUSBMergeNub 705.4.0
    com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.0
    com.apple.iokit.IOBDStorageFamily 1.7
    com.apple.iokit.IODVDStorageFamily 1.7.1
    com.apple.iokit.IOCDStorageFamily 1.7.1
    com.apple.iokit.IOAHCISerialATAPI 2.6.1
    com.apple.iokit.IOFireWireFamily 4.5.6
    com.apple.iokit.IO80211Family 700.52
    com.apple.iokit.IOAHCIFamily 2.7.0
    com.apple.iokit.IOEthernetAVBController 1.0.3b3
    com.apple.driver.mDNSOffloadUserClient 1.0.1b8
    com.apple.iokit.IONetworkingFamily 3.2
    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 389.1
    com.apple.iokit.IOReportFamily 31
    com.apple.driver.AppleFDEKeyStore 28.30
    com.apple.iokit.IOUSBMassStorageClass 3.7.0
    com.apple.driver.AppleUSBComposite 705.4.9
    com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.0
    com.apple.iokit.IOStorageFamily 2.0
    com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.0
    com.apple.iokit.IOUSBFamily 705.4.14
    com.apple.driver.AppleACPIPlatform 3.1
    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
    Model: iMac11,3, BootROM IM112.0057.B01, 4 processors, Intel Core i5, 2.8 GHz, 8 GB, SMC 1.59f2
    Graphics: ATI Radeon HD 5750, ATI Radeon HD 5750, PCIe, 1024 MB
    Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353637334648302D4348392020
    Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x802C, 0x384A54463235363634485A2D314734483120
    Memory Module: BANK 0/DIMM1, 2 GB, DDR3, 1333 MHz, 0x802C, 0x384A54463235363634485A2D314734483120
    Memory Module: BANK 1/DIMM1, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353637334648302D4348392020
    AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.74.0-P2P
    Bluetooth: Version 4.3.0f10 14890, 3 services, 19 devices, 1 incoming serial ports
    Network Service: Ethernet, Ethernet, en0
    Serial ATA Device: WDC WD1001FALS-40Y6A0, 1 TB
    Serial ATA Device: OPTIARC DVD RW AD-5680H
    USB Device: Hub
    USB Device: USB2.0 Hub
    USB Device: USB2.0 Hub
    USB Device: USB Receiver
    USB Device: Built-in iSight
    USB Device: IR Receiver
    USB Device: Hub
    USB Device: Keyboard Hub
    USB Device: Apple Keyboard
    USB Device: Internal Memory Card Reader
    USB Device: BRCM2046 Hub
    USB Device: Bluetooth USB Host Controller
    Thunderbolt Bus:
     
  2. imac1776 thread starter macrumors newbie

    Joined:
    Oct 25, 2014
    #2
    Crash

    2nd crash in 10 minutes :mad:

    Anonymous UUID: 64A195F7-8479-5889-8C83-63595F21DA01

    Sat Oct 25 08:52:53 2014

    *** Panic Report ***
    Machine-check capabilities: 0x0000000000001c09
    family: 6 model: 30 stepping: 5 microcode: 5
    signature: 0x106e5
    Intel(R) Core(TM) i5 CPU 760 @ 2.80GHz
    9 error-reporting banks
    Processor 3: IA32_MCG_STATUS: 0x0000000000000004
    IA32_MC5_STATUS(0x415): 0xbe00000000800400
    IA32_MC5_ADDR(0x416): 0x00003f7f92671986
    IA32_MC5_MISC(0x417): 0x0000000000007fff
    panic(cpu 3 caller 0xffffff8010c1f12a): "Machine Check at 0xffffff7f92671986, registers:\n" "CR0: 0x000000008001003b, CR2: 0x0000000104631000, CR3: 0x0000000013d70000, CR4: 0x0000000000002660\n" "RAX: 0x0000000000000001, RBX: 0xffffff8022bb9000, RCX: 0x000000005ba86000, RDX: 0x0000000000000001\n" "RSP: 0xffffff811a1f3e70, RBP: 0xffffff811a1f3f20, RSI: 0x0000000000000002, RDI: 0xffffff8112a4b148\n" "R8: 0x0000000000000000, R9: 0x0000000000000300, R10: 0x0000000000000001, R11: 0x0000000000000300\n" "R12: 0xffffff8022c60000, R13: 0xffffff8112a4b148, R14: 0x00000000000182f5, R15: 0x0000000000000001\n" "RFL: 0x0000000000010002, RIP: 0xffffff7f92671986, CS: 0x0000000000000008, SS: 0x0000000000000010\n" "Error code: 0x0000000000000000\n"@/SourceCache/xnu/xnu-2782.1.97/osfmk/i386/trap_native.c:168
    Backtrace (CPU 3), Frame : Return Address
    0xffffff811298de90 : 0xffffff8010b3a811
    0xffffff811298df10 : 0xffffff8010c1f12a
    0xffffff811298e070 : 0xffffff8010c3acef
    0xffffff811a1f3f20 : 0xffffff8010c202ae
    0xffffff811a1f3f40 : 0xffffff8010b514bb
    0xffffff811a1f3f90 : 0xffffff8010b51970
    0xffffff811a1f3fb0 : 0xffffff8010c192c7

    BSD process name corresponding to current thread: kernel_task

    Mac OS version:
    14A389

    Kernel version:
    Darwin Kernel Version 14.0.0: Fri Sep 19 00:26:44 PDT 2014; root:xnu-2782.1.97~2/RELEASE_X86_64
    Kernel UUID: 89E10306-BC78-3A3B-955C-7C4922577E61
    Kernel slide: 0x0000000010800000
    Kernel text base: 0xffffff8010a00000
    __HIB text base: 0xffffff8010900000
    System model name: iMac11,3 (Mac-F2238BAE)

    System uptime in nanoseconds: 2275209571354
    last loaded kext at 2204324689760: com.apple.filesystems.afpfs 11.0 (addr 0xffffff7f93699000, size 364544)
    last unloaded kext at 332442435923: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7f93621000, size 61440)
    loaded kexts:
    com.Cycling74.driver.Soundflower 1.5.2
    com.rim.driver.BlackBerryUSBDriverInt 0.0.64
    com.apple.filesystems.afpfs 11.0
    com.apple.nke.asp-tcp 8.0.0
    com.apple.filesystems.smbfs 3.0.0
    com.apple.driver.AppleHWSensor 1.9.5d0
    com.apple.driver.AGPM 100.14.37
    com.apple.driver.AudioAUUC 1.70
    com.apple.filesystems.autofs 3.0
    com.apple.iokit.IOBluetoothSerialManager 4.3.0f10
    com.apple.driver.AppleOSXWatchdog 1
    com.apple.driver.AppleMikeyHIDDriver 124
    com.apple.driver.AppleHDA 266.5
    com.apple.driver.AppleUpstreamUserClient 3.6.1
    com.apple.kext.AMDFramebuffer 1.2.8
    com.apple.driver.AppleBacklight 170.4.12
    com.apple.driver.AppleMCCSControl 1.2.10
    com.apple.driver.AppleMikeyDriver 266.5
    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.ACPI_SMC_PlatformPlugin 1.0.0
    com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.0f10
    com.apple.AMDRadeonX3000 1.2.8
    com.apple.kext.AMD5000Controller 1.2.8
    com.apple.driver.AppleIRController 327.5
    com.apple.driver.AppleUSBCardReader 3.5.0
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
    com.apple.BootCache 35
    com.apple.iokit.SCSITaskUserClient 3.7.0
    com.apple.driver.XsanFilter 404
    com.apple.iokit.IOAHCIBlockStorage 2.6.5
    com.apple.iokit.AppleBCM5701Ethernet 10.1.2b3
    com.apple.driver.AppleUSBHub 705.4.1
    com.apple.driver.AppleFWOHCI 5.5.2
    com.apple.driver.AirPort.Atheros40 700.74.5
    com.apple.driver.AppleAHCIPort 3.0.7
    com.apple.driver.AppleUSBEHCI 705.4.14
    com.apple.driver.AppleHPET 1.8
    com.apple.driver.AppleACPIButtons 3.1
    com.apple.driver.AppleRTC 2.0
    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.security.SecureRemotePassword 1.0
    com.apple.kext.triggers 1.0
    com.apple.iokit.IOSerialFamily 11
    com.apple.driver.DspFuncLib 266.5
    com.apple.kext.OSvKernDSPLib 1.15
    com.apple.iokit.IOAudioFamily 200.6
    com.apple.vecLib.kext 1.2.0
    com.apple.driver.AppleBacklightExpert 1.1.0
    com.apple.iokit.IOFireWireIP 2.2.6
    com.apple.iokit.IOSurface 97
    com.apple.driver.AppleHDAController 266.5
    com.apple.iokit.IOHDAFamily 266.5
    com.apple.driver.AppleSMC 3.1.9
    com.apple.driver.IOPlatformPluginLegacy 1.0.0
    com.apple.driver.IOPlatformPluginFamily 5.8.0d49
    com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.0f10
    com.apple.iokit.IOBluetoothFamily 4.3.0f10
    com.apple.driver.AppleSMBusController 1.0.13d1
    com.apple.driver.AppleSMBusPCI 1.0.12d1
    com.apple.iokit.IOUSBUserClient 705.4.0
    com.apple.iokit.IONDRVSupport 2.4.1
    com.apple.iokit.IOAcceleratorFamily2 156.4
    com.apple.kext.AMDSupport 1.2.8
    com.apple.AppleGraphicsDeviceControl 3.7.21
    com.apple.iokit.IOGraphicsFamily 2.4.1
    com.apple.driver.AppleUSBHIDKeyboard 175.5
    com.apple.driver.AppleHIDKeyboard 175.5
    com.apple.iokit.IOUSBHIDDriver 705.4.0
    com.apple.driver.AppleUSBMergeNub 705.4.0
    com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.0
    com.apple.iokit.IOBDStorageFamily 1.7
    com.apple.iokit.IODVDStorageFamily 1.7.1
    com.apple.iokit.IOCDStorageFamily 1.7.1
    com.apple.iokit.IOAHCISerialATAPI 2.6.1
    com.apple.iokit.IOEthernetAVBController 1.0.3b3
    com.apple.driver.mDNSOffloadUserClient 1.0.1b8
    com.apple.iokit.IOFireWireFamily 4.5.6
    com.apple.iokit.IO80211Family 700.52
    com.apple.iokit.IONetworkingFamily 3.2
    com.apple.iokit.IOAHCIFamily 2.7.0
    com.apple.driver.AppleEFINVRAM 2.0
    com.apple.driver.AppleEFIRuntime 2.0
    com.apple.iokit.IOHIDFamily 2.0.0
    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 389.1
    com.apple.iokit.IOReportFamily 31
    com.apple.driver.AppleFDEKeyStore 28.30
    com.apple.iokit.IOUSBMassStorageClass 3.7.0
    com.apple.driver.AppleUSBComposite 705.4.9
    com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.0
    com.apple.iokit.IOStorageFamily 2.0
    com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.0
    com.apple.iokit.IOUSBFamily 705.4.14
    com.apple.driver.AppleACPIPlatform 3.1
    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
    Model: iMac11,3, BootROM IM112.0057.B01, 4 processors, Intel Core i5, 2.8 GHz, 8 GB, SMC 1.59f2
    Graphics: ATI Radeon HD 5750, ATI Radeon HD 5750, PCIe, 1024 MB
    Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353637334648302D4348392020
    Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x802C, 0x384A54463235363634485A2D314734483120
    Memory Module: BANK 0/DIMM1, 2 GB, DDR3, 1333 MHz, 0x802C, 0x384A54463235363634485A2D314734483120
    Memory Module: BANK 1/DIMM1, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353637334648302D4348392020
    AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.74.0-P2P
    Bluetooth: Version 4.3.0f10 14890, 3 services, 19 devices, 1 incoming serial ports
    Network Service: Ethernet, Ethernet, en0
    Serial ATA Device: WDC WD1001FALS-40Y6A0, 1 TB
    Serial ATA Device: OPTIARC DVD RW AD-5680H
    USB Device: Hub
    USB Device: Keyboard Hub
    USB Device: Apple Keyboard
    USB Device: Internal Memory Card Reader
    USB Device: BRCM2046 Hub
    USB Device: Bluetooth USB Host Controller
    USB Device: Hub
    USB Device: USB2.0 Hub
    USB Device: USB2.0 Hub
    USB Device: USB Receiver
    USB Device: IR Receiver
    USB Device: Built-in iSight
    Thunderbolt Bus:
     
  3. metanoiapi macrumors member

    Joined:
    Oct 16, 2014
    #3
    I hope everyone is ok.

    panic(cpu 2 caller 0xffffff80005ff683): "TLB invalidation IPI timeout: " "CPU(s) failed to respond to interrupts,

    panic(cpu 3 caller 0xffffff8010c1f12a): "Machine Check at 0xffffff7f92671986, registers:\n" "CR0: 0x000000008001003b,

    The kernel panic is telling me your CPU is half-fried. Easy replacment if it wasn't soldered onto the board. Requires a complete motherbo.....er logic board replacement.

    "We Love Macs" website may have what you're looking for.
     
  4. imac1776 thread starter macrumors newbie

    Joined:
    Oct 25, 2014
    #4
    well that sucks. This is a new logic board from apple only 90+ days old...I think they installed used parts. No more money going into this one. I guess I'll start shopping for a new iMac. Thanks for the info.
     
  5. old-wiz macrumors G3

    Joined:
    Mar 26, 2008
    Location:
    West Suburban Boston Ma
    #5
    Probably better to just replace the whole machine I guess. New motherboards are expensive.
     
  6. imac1776 thread starter macrumors newbie

    Joined:
    Oct 25, 2014
    #6
    Did some research and found that the CPU is replaceable and upgradable so I'm going to order one and put it in. Found all the info on ifixit.com. Also checked out that We love macs website...they must really love their stuff because the prices are crazy! 1200 bucks for a logic board that Apple sells for 600.:eek:
     

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