Why Is My iMac Restarting?

Discussion in 'Mac Apps and Mac App Store' started by ghsNick, Feb 23, 2012.

  1. ghsNick macrumors 68020

    ghsNick

    Joined:
    May 25, 2010
    #1
    Lately my iMac has been "forcing" me to restart the computer because of "some problem."

    I sent the report to Apple...but how do I fix this?
     
  2. stridemat Moderator

    stridemat

    Staff Member

    Joined:
    Apr 2, 2008
    Location:
    UK
    #2
    Can you post any more information? What are you doing when it happens? What do the error messages say?
     
  3. Ccrew macrumors 68020

    Joined:
    Feb 28, 2011
  4. ghsNick thread starter macrumors 68020

    ghsNick

    Joined:
    May 25, 2010
    #4
  5. Butler Trumpet macrumors 6502

    Butler Trumpet

    Joined:
    May 26, 2004
    Location:
    Dekalb IL
    #5
    You should run Apple Hardware Test (AHT)

    To do this, turn your computer on while holding the "D" key. Then, you can run either a quick (probably 5 minutes) test or an extended test (over an hour... sometimes more depending on how much RAM you have)

    This will test some major components in your computer... but most importantly RAM. The RAM failing is the most common reason for a kernel panic, but not the only reason it can happen.

    Here's some more info on AHT: http://support.apple.com/kb/HT1509

    Good luck!
     

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