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random restarting

341 Views 12 Replies Latest reply: Feb 12, 2013 1:21 PM by Mike Mazzei RSS
Mike Mazzei Calculating status...
Currently Being Moderated
Feb 10, 2013 12:23 PM

I have a 6 core Mac Pro that restarts at any time.   At first I thought it was Pro Tools since it was restarting during my sessions.  Now it just restarts when I turn the computer on!!!  I did the repair permissions thing... it even restarted during that process. I did that several times. I believe there was some discussion on this around 2010.  This computer is under Apple care (mid 2012) so I will ask for their help.  Any suggestions ?  

Mike

Mac Pro, OS X Mountain Lion (10.8.1), 3.33Ghz 6 core Intel Xeon
  • Linc Davis Level 10 Level 10 (107,410 points)
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    Feb 10, 2013 1:30 PM (in response to Mike Mazzei)

    Now it just restarts when I turn the computer on!

     

    So it won't boot at all?

  • Linc Davis Level 10 Level 10 (107,410 points)
    Currently Being Moderated
    Feb 10, 2013 1:45 PM (in response to Mike Mazzei)

    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 System Diagnostic Reports. Post the entire contents — 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 (107,410 points)
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    Feb 11, 2013 7:48 AM (in response to Mike Mazzei)

    Please post the rest of the panic report, as requested.

  • Grant Bennet-Alder Level 8 Level 8 (48,105 points)
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    Feb 11, 2013 7:59 AM (in response to Mike Mazzei)
    Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
  • Linc Davis Level 10 Level 10 (107,410 points)
    Currently Being Moderated
    Feb 11, 2013 10:14 AM (in response to Mike Mazzei)

    Please read this whole message before doing anything.

    This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.

    The purpose of the test is to determine whether your problem is caused by third-party system modifications that load automatically at startup or login.

     

    Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode* and log in to the account with the problem. The instructions provided by Apple are as follows:
    • Shut down your computer, wait 30 seconds, and then hold down the shift key while pressing the power button.
    • When you see the gray Apple logo, release the shift key.
    • If you are prompted to log in, type your password, and then hold down the shift key again as you click  Log in.
    *Note: If FileVault is enabled under OS X 10.7 or later, or if a firmware password is set, or if the boot volume is a software RAID, you can’t boot in safe mode.

     

    Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.  The next normal boot may also be somewhat slow.

    The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.

     

    Test while in safe mode. Same problem?

     

    After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

  • Grant Bennet-Alder Level 8 Level 8 (48,105 points)
    Currently Being Moderated
    Feb 12, 2013 9:52 AM (in response to Mike Mazzei)

    Your panic reports suggest you may be having uncorrectable memory errors. The shortened report sometimes happens when a second uncorrectable error occurs before the first one has been completely handled.

     

    Without the additional information, it is really hard to say that memory errors is THE problem or the ONLY problem.

     

    It would be nice to have a clear and complete idea of what is going wrong. But sometimes we just have to chip away at the problem with what we know, and hope that improvement will reveal the remaining problems.

     

    One approach would be to focus on running memory tests to find and eliminate the faulty DIMM first, then focus on what else may be going wrong.

     

    Check in:

     

    About This Mac > ( More Info ) > Memory ...

     

    ... any modules listed at less than their know sizes, not listed at all, or with Status other than "OK"  are BAD.

    Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers

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