Kernel Panics, 2009 Mac Pro nVidia 750ti

Discussion in 'Mac Pro' started by mugwump, Feb 3, 2016.

  1. mugwump macrumors regular

    Jan 10, 2004
    Have a 2009 Mac Pro, SSD in a PCI Card slot, nVidia 750ti Maxwell card -- and its restarting suddenly with Kernel Panics.

    The crash logs seem to say its the nVidia drivers.

    Anyone else having sudden restarts?
  2. Fl0r!an macrumors 6502a

    Aug 14, 2007
    Sounds like you didn't install or enable the Nvidia WebDrivers...
  3. mugwump thread starter macrumors regular

    Jan 10, 2004
    Okay, so after some emergency efforts things have improved: vacuumed out the machine, removed heatsink and re-applied thermal paste, zapped PRAM which then involved screen sharing to re-enable the nVidia web drivers...
    ... Not sure what's up but I will keep watch over this. It was infrequent restarts, then it was restarts every minute. nVidia web drivers were installed and running on the 4K dell screen.
  4. ActionableMango macrumors G3


    Sep 21, 2010
    I sure hope you vacuumed with an anti-static computer vac.
  5. Asgorath macrumors 68000

    Mar 30, 2012
    Please attach the crash logs next time. It's really hard to know what's going wrong from a short description alone.
  6. netkas macrumors 65816

    Oct 2, 2007
    Try to clean pcie plug contacts on card, could be a reason (happened to me few times)
  7. brianbrook macrumors member


    Jan 3, 2016
    Northern California
    I had alot of problems like yours with a Gigabyte 750 Ti and moved to a EVGA 960 with no problems so far on a 1,1....does your GPU have Displayport, AFAIK MacVidCard just like to flash GTX cards w/ DP because of compatibility issues..
  8. mugwump thread starter macrumors regular

    Jan 10, 2004
    Another panic. Here is some of the crash log:

    *** Panic Report ***
    panic(cpu 0 caller 0xffffff7f8f292930): NVRM[0/5:0:0]: Read Error 0x00000144: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0x92000000 0xffffff91bfc56000 0x117000a2, D0, P1/2
    Backtrace (CPU 0), Frame : Return Address
    0xffffff81951d9c40 : 0xffffff800e4df792
    0xffffff81951d9cc0 : 0xffffff7f8f292930
    0xffffff81951d9d80 : 0xffffff7f8f36f79b
    0xffffff81951d9de0 : 0xffffff7f8f633bd5
    0xffffff81951d9e10 : 0xffffff7f8f298e60
    0xffffff81951d9ec0 : 0xffffff7f8f2326f8
    0xffffff81951d9ee0 : 0xffffff800eaba9e5
    0xffffff81951d9f10 : 0xffffff7f8ed48116
    0xffffff81951d9f50 : 0xffffff7f90a932be
    0xffffff81951d9f60 : 0xffffff7f90a9b449
    0xffffff81951d9f80 : 0xffffff800e5d18ec
    0xffffff81951d9fd0 : 0xffffff800e5f03f9
    0xffffff91bf813f40 : 0xffffff800e4f6cfd
    0xffffff91bf813f90 : 0xffffff800e4f71f0
    0xffffff91bf813fb0 : 0xffffff800e5ccf77
          Kernel Extensions in backtrace:
                dependency: com.nvidia.web.NVDAResmanWeb(10.0.9)[E60CB387-1228-308D-BFE7-BF239B8EDF95]@0xffffff7f8f22b000
    BSD process name corresponding to current thread: kernel_task
    Boot args: nvda_drv=1
  9. MacVidCards Suspended

    Nov 17, 2008
    Hollywood, CA
    iS it an Asus card? They don't really play well with OSX. As noted above, I have found the 750 cards with DP to be much better choices.
  10. mugwump thread starter macrumors regular

    Jan 10, 2004
    It's an evga card going through the DP. Zapping the pram (nvram) seems to help for a few days.
  11. Asgorath macrumors 68000

    Mar 30, 2012
    That's the read error panic, which is a hardware problem. As far as I can tell it means the driver has lost its connection with the GPU and is just reading garbage from the GPU's registers (i.e. 0xFFFFFFFF in your case). Check that the card is seated correctly in the PCIe slot, check that the fans are working, etc.
  12. mugwump thread starter macrumors regular

    Jan 10, 2004
    Okay, so I have cleaned the PCI card connection with diluted rubbing alcohol, vacuumed out the dust from the x16 slot, zapped the pram and have now booted it. Thanks to netkas and Asgorath suggestions for this. Hopefully no more texts from the wife, "the computer restarted again!"
  13. mugwump thread starter macrumors regular

    Jan 10, 2004
    UGH -- new Kernel Panic, but this one seems different. Everything is cool, connections are fine, added dust filters on the front and back of the cMP case to keep dust out...

    Thu Mar  3 08:31:33 2016
    *** Panic Report ***
    panic(cpu 6 caller 0xffffff7f90692930): NVRM[0/5:0:0]: Read Error 0x00070000: CFG 0x138010de 0x00100406 0x92000000, BAR0 0x92000000 0xffffff91c13a5000 0x117000a2, D0, P1/2
    Backtrace (CPU 6), Frame : Return Address
    0xffffff91bfecb520 : 0xffffff800f8df792
    0xffffff91bfecb5a0 : 0xffffff7f90692930
    0xffffff91bfecb660 : 0xffffff7f9076f79b
    0xffffff91bfecb6c0 : 0xffffff7f9093df2d
    0xffffff91bfecb710 : 0xffffff7f9093de47
    0xffffff91bfecb750 : 0xffffff7f9093979c
    0xffffff91bfecb7c0 : 0xffffff7f909efcd1
    0xffffff91bfecb8d0 : 0xffffff7f909f4023
    0xffffff91bfecb970 : 0xffffff7f90805ac7
    0xffffff91bfecb9e0 : 0xffffff7f9080561a
    0xffffff91bfecba60 : 0xffffff7f90804df9
    0xffffff91bfecbbc0 : 0xffffff7f909f6b7f
    0xffffff91bfecbc40 : 0xffffff7f909f05c3
    0xffffff91bfecbd00 : 0xffffff7f909f08f0
    0xffffff91bfecbd60 : 0xffffff7f909f0b9f
    0xffffff91bfecbdb0 : 0xffffff7f90a35730
    0xffffff91bfecbe20 : 0xffffff7f9079d477
    0xffffff91bfecbe40 : 0xffffff7f90698f75
    0xffffff91bfecbef0 : 0xffffff800feb6ef6
    0xffffff91bfecbf40 : 0xffffff800feb4d61
    0xffffff91bfecbf80 : 0xffffff800feb4e56
    0xffffff91bfecbfb0 : 0xffffff800f9ccf77
          Kernel Extensions in backtrace:
                dependency: com.nvidia.web.NVDAResmanWeb(10.0.9)[E60CB387-1228-308D-BFE7-BF239B8EDF95]@0xffffff7f9062b000
    BSD process name corresponding to current thread: kernel_task
    Boot args: nvda_drv=1
    Mac OS version:
    Kernel version:
    Darwin Kernel Version 15.3.0: Thu Dec 10 18:40:58 PST 2015; root:xnu-3248.30.4~1/RELEASE_X86_64
    Kernel UUID: DECC9F02-27D7-31F0-9599-A9EF2873902C
    Kernel slide:     0x000000000f600000
    Kernel text base: 0xffffff800f800000
    __HIB  text base: 0xffffff800f700000
    System model name: MacPro5,1 (Mac-F221BEC8)
    System uptime in nanoseconds: 33979068168802
    last loaded kext at 5639904587912:    900.4.1 (addr 0xffffff7f91f0d000, size 12288)
    last unloaded kext at 5700486990398:    900.4.1 (addr 0xffffff7f91f0d000, size 12288)

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