Mac Pro 1,1 panics immediately after CPU upgrade

Discussion in 'Mac Pro' started by crashaf, May 17, 2012.

  1. crashaf macrumors newbie

    May 11, 2011
    Colorado Springs, CO
    I'm trying to upgrade my Mac Pro to 8 cores, but keep running into kernel panics immediately on startup. My machine is a Mac Pro 1,1 with dual 3.0 dual core processors and 6GB RAM running 10.6.8. It also has a flashed PC 4870 1GB graphics card.

    This unit is rock solid and panics are extremely rare. I bought two 2.66 quad core processors (x5355 SLAC4) and installed them. I also ran the firmware updater to update my system's firmware to the 2,1 firmware.

    The unit boots to the apple with spinning gear, then panics. Pulled the panic log and got this:

    Interval Since Last Panic Report:  4 sec
    Panics Since Last Report:          1
    Anonymous UUID:                    594FED51-B326-45BC-8B52-FF06CCE2F68A
    Thu May 17 14:04:50 2012
    Machine-check capabilities (cpu 6) 0x0000000000000806:
     family: 6 model: 15 stepping: 7 microcode: 102
     Intel(R) Xeon(R) CPU           X5355  @ 2.66GHz
     6 error-reporting banks
     threshold-based error status present
    Machine-check status 0x0000000000000005:
     restart IP valid
     machine-check in progress
    MCA error-reporting registers:
     IA32_MC0_STATUS(0x401): 0x1000000000000000 invalid
     IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
     IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
     IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
     IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
     IA32_MC5_STATUS(0x415): 0xb200000806000e0f valid
      MCA error code:            0x0e0f
      Model specific error code: 0x0600
      Other information:         0x00000008
      Threshold-based status:    No tracking
      Status bits:
       Processor context corrupt
       Error enabled
       Uncorrected error
    panic(cpu 7 caller 0x2a7bfe): Machine Check thread:0xa1f3000, trapno:0x12, err:0x0, registers:
    CR0: 0x80010033, CR2: 0x00458000, CR3: 0x2fdc1000, CR4: 0x00000660
    RAX: 0x000000abc235dd2e, RBX: 0x0000000100452500, RCX: 0x00000001007b8064, RDX: 0x0000000000000000
    RSP: 0x0000000100280900, RBP: 0x0000000100280950, RSI: 0x0000000100453610, RDI: 0x0000000101007600
    R8:  0x0000000000000648, R9:  0x00000000000000c9, R10: 0x0000000000012400, R11: 0x0000000000000000
    R12: 0x0000000000000607, R13: 0x0000000000000301, R14: 0x0000000100280900, R15: 0x0000000100452500
    RFL: 0x0000000000010246, RIP: 0x00007fff81dde0a6, CR2: 0x0000000100458000
    Backtrace (CPU 7), Frame : Return Address (4 potential args on stack)
    0x780caf78 : 0x21b449 (0x5ce420 0x780cafac 0x2238a5 0x0) 
    0x780cafc8 : 0x2a7bfe (0x58ffc0 0x59022d 0xa1f3000 0x12) 
    0x780cb0b8 : 0x29f912 (0x1 0xf 0x1007600 0x1) 
    BSD process name corresponding to current thread: sample
    Mac OS version:
    Kernel version:
    Darwin Kernel Version 10.3.0: Fri Feb 26 11:58:09 PST 2010; root:xnu-1504.3.12~1/RELEASE_I386
    System model name: MacPro2,1 (Mac-F4208DC8)
    System uptime in nanoseconds: 66249735653
    unloaded kexts:
    loaded kexts:
    at.obdev.nke.LittleSnitch	2.2.05	1.6.1	2.6.2	31	1.0.0d1	3.9.6	4.5.7	3.9.6	2.1.1	1.3.0	2.5.1	3.9.6	1.3.2	1.3.1	1.5	1.5	1.3.2	1.4	0	0	2.1.11	104.3.0	104.3.0	402.1 - last loaded 1585248000	3.9.6	3.9.0	2.6.2	1.6	1.6	1.6	2.5.1	2.6.2	2.0	3.9.6	4.2.6	2.0.3	2.5.1	3.9.6	1.3.0	1.6.2	1.1	6	1.0.0d1	283	1.6	1.3.2	2.6	1.3.0
    Model: MacPro2,1, BootROM MP21.007F.B06, 4 processors, Dual-Core Intel Xeon, 3 GHz, 6 GB, SMC 1.7f10
    Graphics: ATI Radeon HD 4870, ATI Radeon HD 4870, PCIe, 1024 MB
    Memory Module: global_name
    AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x87), Broadcom BCM43xx 1.0 (
    Network Service: AirPort, AirPort, en2
    PCI Card: ATI Radeon HD 4870, ATY,MotmotParent, Slot-1
    PCI Card: ATI Radeon HD 4870, Display, Slot-1
    Serial ATA Device: ST980313AS, 74.53 GB
    Parallel ATA Device: OPTIARC DVD RW AD-7170A
    Parallel ATA Device: OPTIARC DVD RW AD-7170A
    USB Device: Hub in Apple Pro Keyboard, 0x05ac  (Apple Inc.), 0x1002, 0x5d100000
    USB Device: Apple Optical USB Mouse, 0x05ac  (Apple Inc.), 0x0307, 0x5d120000
    USB Device: Apple Pro Keyboard, 0x05ac  (Apple Inc.), 0x0204, 0x5d110000
    FireWire Device: built-in_hub, Up to 800 Mb/sec
    Are there any clues here as to why it's panicking? Did I get two bum processors? Result is the same with one processor only in the CPU A socket, tested both processors.

    Put the unit back to stock except for the firmware for now and it's working fine.

  2. olemoley macrumors newbie

    May 17, 2012
    Well the CPU's should run so I'd think there's a problem with something.

    Try just a couple of sticks of RAM, a fresh OS on a spare drive. Have you ran the hardware test cd that comes with the mac? On second thoughts that may not work post upgrade to mp1,2 but a mp1,2 hardware test cd might.
  3. ashman70 macrumors 6502a

    Dec 20, 2010
    Did you do the firmware update to 2,1 right after the CPU upgrade, or did it boot fine a few times before you did the update? Is it possible to undo the update to 2,1?
  4. crashaf thread starter macrumors newbie

    May 11, 2011
    Colorado Springs, CO
    I did the 2,1 firmware upgrade after the CPU install because of the KP issue. Put the original CPUs back in to verify nothing got broken during the install and did the upgrade before taking it apart again. Yes, it is 100% reversible.

    I tried with only the original RAM modules and a fresh OS on a spare HD, no change in behavior.

    Just to clarify, I have never gotten a successful boot to the desktop with the new CPUs installed.

  5. freespeed macrumors member

    Oct 12, 2011
    San Diego, CA
    Any new updates on your issue? I'm also getting ready to do the same upgrade from 2GHz to a 2.66GHz. Just waiting for my order to come in from eBay. I also got the SLAC4 chips, so any tips would be great.
  6. Neodym macrumors 68000


    Jul 5, 2002
  7. nambuccaheadsau macrumors 65816


    Oct 19, 2007
    Nambucca Heads Australia
    Where did the CPUs come from any idea? By the look of things the problem is with the CPUs as mentioned in first few lines of your log.
  8. clipsedsm95 macrumors member

    May 17, 2012
    New York
    Is the 2,1 update required to run 8 cores?
  9. brand macrumors 601


    Oct 3, 2006
    Thats the first thing that I thought also. If you got them from a reputable retailer you should be able to exchange them. If you got them from Ebay you may have been duped.
  10. ashman70 macrumors 6502a

    Dec 20, 2010
  11. freespeed macrumors member

    Oct 12, 2011
    San Diego, CA
    Just completed the upgrade. Entire process was not bad all, even the fan everyone seemed to be having a problem with came off fine. I had more trouble taking off that middle heat sink cover. One I got everything put back together it booted up normally.

    So it might definitely have something to do with the CPU's you ordered. I found a guy on eBay that does a lifetime warranty and sold it to me for basically $100/set and it was professionally packaged to CPU specs and everything.

    Anyways, his eBay name is esisoinc if you're interested. Hope everything works out with your MP and thanks for the help.

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