Skip navigation

Why my Macbook reboots without any reasons?

402 Views 10 Replies Latest reply: Sep 15, 2013 10:08 AM by ocam RSS
ocam Calculating status...
Currently Being Moderated
Sep 12, 2013 7:30 PM

My Macbook Air (OX 10.8.4) closes my windows 4 at 5 times and then reboots after 10min. This happens 3 at 4 times a day. I made an analysis with Onyx and it said there are errors in my startup disk, I tried to repair it with disk utility but it doesn't work. Can someone help me?

MacBook Air, OS X Mountain Lion (10.8.4)
  • Carolyn Samit Level 10 Level 10 (84,160 points)
    Currently Being Moderated
    Sep 12, 2013 7:50 PM (in response to ocam)

    You should verify the startup disk using Disk Utility, not Onyx. Onyx is thrird party software and not neecessary on a Mac.

     

    Try Resetting the System Management Controller (SMC)

  • Linc Davis Level 10 Level 10 (107,825 points)
    Currently Being Moderated
    Sep 12, 2013 8:40 PM (in response to ocam)

    If you have more than one user account, you must be logged in as an administrator to carry out these instructions.

      

    Launch the Console application in any of the following ways:

     

    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

     

    ☞ In the Finder, select Go Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

     

    ☞ Open LaunchPad. Click Utilities, then Console in the icon grid.

       

    Select the most recent panic log under the heading System Diagnostic Reports on the left. If you don't see that heading, select  

     

    View ▹ Show Log List

      

    from the menu bar. Post the entire contents of the panic report — the text, please, not a screenshot. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header and body of the report, if it’s present (it may not be.) Please don't post shutdownStall, spin, or hang reports.

  • Linc Davis Level 10 Level 10 (107,825 points)
    Currently Being Moderated
    Sep 12, 2013 10:55 PM (in response to ocam)

    You wrote that you tried to repair the disk with Disk Utility, but could not. What exactly happened?

  • Linc Davis Level 10 Level 10 (107,825 points)
    Currently Being Moderated
    Sep 13, 2013 9:37 AM (in response to ocam)

    That panic was not caused by third-party software. If the problem is recurrent, the possibilities are:

     

    1. A stale or corrupt kernel cache
    2. A damaged OS X installation
    3. A fault in a peripheral device, if any
    4. Corrupt non-volatile memory (NVRAM)
    5. An internal hardware fault (including incompatible memory)
    6. An obscure bug in OS X

     

    You may already have ruled out some of these.

       

    Rule out #1 by booting in safe mode and then rebooting as usual. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.

       

    You can rule out #2 and #3 by reinstalling the OS and testing with non-essential peripherals disconnected and aftermarket expansion cards removed, if applicable. Sometimes a clean reinstallation (after erasing the startup volume) may solve a problem that isn't solved by reinstalling in place, without erasing.

     

    Corrupt NVRAM, which rarely causes panics, can be ruled out by resetting it.

     

    If your model has user-replaceable memory, and you've upgraded the memory modules, reinstall the original memory and see whether there's any improvement. Be careful not to touch the gold contacts. Clean them with a mild solvent such as rubbing alcohol. Aftermarket memory must exactly match the technical specifications for your model.

     

    The Apple Hardware Test or Apple Diagnostics, though generally unreliable, will sometimes detect a fault. A negative test can't be depended on. Run the extended version of the test.

     

    In the category of obscure bugs, reports suggest that FileVault may trigger kernel traps under some unknown conditions. Most, though not all, of these reports seem to involve booting from an aftermarket SSD. If those conditions apply to you, try deactivating FileVault.

      

    Connecting more than one display is another reported trigger for OS X bugs.

      

    If your system is not fully up to date, running Software Update might get you a bug fix.

     

    In rare cases, a malformed network packet from a defective router or other network device can cause panics. Such packets could also be sent deliberately by a skillful attacker. This possibility is something to consider if you run a public server that might be the target of such an attack.

     

    If none of the above applies, make a "Genius" appointment at an Apple Store to have the machine tested. You may have to leave it there for several days. There isn't much point in doing this unless you can reproduce the panic, or if you can't, it happens often enough that it's likely to be repeated at the store. Otherwise you may be told that nothing is wrong.

     

    Print the first page of the panic report and bring it with you.

     

    Back up all data on the internal drive(s) before you hand over your computer to anyone. If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you know how to restore, and you have at least  two independent backups.) Don’t erase the recovery partition, if present.

     

    Keeping your confidential data secure during hardware repair

     

    *An SSD doesn't need to be zeroed.

  • Linc Davis Level 10 Level 10 (107,825 points)
    Currently Being Moderated
    Sep 14, 2013 4:38 PM (in response to ocam)

    It means that you have a memory fault.

    Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

    Back up all data on the internal drive(s) before you hand over your computer to anyone. There are ways to back up a computer that isn't fully functional — ask if you need guidance.

    If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.

     

    Keeping your confidential data secure during hardware repair

    *An SSD doesn't need to be zeroed.

  • 10newsrox Level 1 Level 1 (15 points)
    Currently Being Moderated
    Sep 14, 2013 7:20 PM (in response to ocam)

    Take it to an apple store or resaler

Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)

Legend

  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.