iMac restarting itself automatically - help

Discussion in 'Mac Basics and Help' started by GIZBUG, Dec 7, 2013.

  1. GIZBUG macrumors 68000


    Oct 28, 2006
    Chicago, IL
    My iMac restarts itself at least 3 times a day, usually when it's in standby mode. Running Mavericks. Below is a copy of the error report. Took it to apple store and they replaced the hard drive but it still does it. Please help

    Anonymous UUID: 11B8C61A-3D83-9668-16E2-D4C5294D050B

    Sat Dec 7 19:23:02 2013
    panic(cpu 1 caller 0xffffff7fa15f7d0d): NVRM[0/1:0:0]: Read Error 0x0080000c: CFG 0x0fd510de 0x00100406 0xb0000000, BAR0 0x102c00000 0xffffff8115305000 0x0e7150a2, D0, P0/4
    Backtrace (CPU 1), Frame : Return Address
    0xffffff8133b93140 : 0xffffff8020c22f69
    0xffffff8133b931c0 : 0xffffff7fa15f7d0d
    0xffffff8133b93280 : 0xffffff7fa16c4e26
    0xffffff8133b932c0 : 0xffffff7fa18c070a
    0xffffff8133b932e0 : 0xffffff7fa18ba835
    0xffffff8133b93340 : 0xffffff7fa16b4a6c
    0xffffff8133b93440 : 0xffffff7fa16b549c
    0xffffff8133b93490 : 0xffffff7fa15d7928
    0xffffff8133b934e0 : 0xffffff7fa15d770b
    0xffffff8133b93580 : 0xffffff7fa15fc52f
    0xffffff8133b93780 : 0xffffff7fa15fdc16
    0xffffff8133b93850 : 0xffffff7fa17983b7
    0xffffff8133b93910 : 0xffffff7fa17a10a7
    0xffffff8133b939d0 : 0xffffff7fa1795d57
    0xffffff8133b93b60 : 0xffffff7fa15a8a2f
    0xffffff8133b93be0 : 0xffffff7fa159915e
    0xffffff8133b93c60 : 0xffffff7fa159be0b
    0xffffff8133b93cd0 : 0xffffff7fa159bf97
    0xffffff8133b93d40 : 0xffffff7fa159bf97
    0xffffff8133b93db0 : 0xffffff7fa159bb4c
    0xffffff8133b93e20 : 0xffffff7fa1563452
    0xffffff8133b93e60 : 0xffffff7fa156284e
    0xffffff8133b93e90 : 0xffffff7fa155ebc4
    0xffffff8133b93ef0 : 0xffffff80210ada80
    0xffffff8133b93f30 : 0xffffff80210ac522
    0xffffff8133b93f80 : 0xffffff80210ac5f7
    0xffffff8133b93fb0 : 0xffffff8020cd6aa7
    Kernel Extensions in backtrace:[38E388A5-92D6-3388-B799-F2498E582287]@0xffffff7fa1554000->0xffffff7fa158bfff

    BSD process name corresponding to current thread: kernel_task

    Mac OS version:

    Kernel version:
    Darwin Kernel Version 13.0.0: Thu Sep 19 22:22:27 PDT 2013; root:xnu-2422.1.72~6/RELEASE_X86_64
    Kernel UUID: 1D9369E3-D0A5-31B6-8D16-BFFBBB390393
    Kernel slide: 0x0000000020a00000
    Kernel text base: 0xffffff8020c00000
    System model name: iMac13,1 (Mac-00BE6ED71E35EB86)

    System uptime in nanoseconds: 10390717335108
    last loaded kext at 2722780768297: (addr 0xffffff7fa2fd7000, size 348160)
    last unloaded kext at 247792895443: (addr 0xffffff7fa2ecf000, size 8192)
    loaded kexts:
    Model: iMac13,1, BootROM IM131.010A.B05, 4 processors, Intel Core i5, 2.9 GHz, 8 GB, SMC 2.9f5
    Graphics: NVIDIA GeForce GT 650M, NVIDIA GeForce GT 650M, PCIe, 512 MB
    Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54333531533643465238432D50422020
    Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54333531533643465238432D50422020
    AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xF4), Broadcom BCM43xx 1.0 (
    Bluetooth: Version 4.2.0f6 12982, 3 services, 23 devices, 1 incoming serial ports
    Network Service: Wi-Fi, AirPort, en1
    Serial ATA Device: APPLE HDD ST1000LM024, 1 TB
    Serial ATA Device: APPLE SSD SM128E, 121.33 GB
    USB Device: Hub
    USB Device: FaceTime HD Camera (Built-in)
    USB Device: Hub
    USB Device: Hub
    USB Device: BRCM20702 Hub
    USB Device: Bluetooth USB Host Controller
    Thunderbolt Bus: iMac, Apple Inc., 23.4
  2. tinix macrumors newbie

    Jun 14, 2013
    Looks like the GPU driver or the GPU itself has some problems. It may be worth trying reinstalling OS X but I think it is hardware problem and you need to take it to Apple Store.

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