Macbook Restarts By Itself

Discussion in 'Mac Basics and Help' started by nayan504, Jan 12, 2010.

  1. nayan504 macrumors member

    Joined:
    Dec 17, 2009
    #1
    Hello

    My macbook sometimes reboots while I am using it. I may be running 2-3 programs and it randomly restarts but no other problems as far as I can see occur. Does anyone know why it randomly restarts? It does not happen that often but every once in a while. Thanks
     
  2. BlueRevolution macrumors 603

    BlueRevolution

    Joined:
    Jul 26, 2004
    Location:
    Montreal, QC
    #2
    Does it go through the normal shutdown process or does it just switch off suddenly?
     
  3. nayan504 thread starter macrumors member

    Joined:
    Dec 17, 2009
    #3
    it just randomly restarts...like it will turn off and turn on.

    the screen will go black and it turns on instantly
     
  4. BlueRevolution macrumors 603

    BlueRevolution

    Joined:
    Jul 26, 2004
    Location:
    Montreal, QC
    #4
    So there's no startup process either, it just goes black for a second?
     
  5. nayan504 thread starter macrumors member

    Joined:
    Dec 17, 2009
    #5
    the screen will turn black and just restart..and start up normally...there is no delay between it turning black and starting up....imagine turning on the computer from a black screen..exactly the same
     
  6. maxrobertson macrumors 6502a

    Joined:
    Jun 15, 2006
    Location:
    Jakarta
    #6
    Sounds like it might be overheating. Does it feel very hot when this happens?
     
  7. fatire macrumors newbie

    Joined:
    Jan 12, 2010
    #7
    Have same problem, MacBookPro Sys 10.5.6

    I have this same problem and am trying to find the cause. No warning just re-boot. I saw a thread about login crash returning you to the user sign-in, not sure if this is what happens or if I'm getting the full chime and re-boot but whatever it is is happening without any notice or warning.
     
  8. nayan504 thread starter macrumors member

    Joined:
    Dec 17, 2009
    #8
    hi..i think it may be overheating because my fan does get really loud sometimes..and sometimes it does feel hot...but i havent checked to see if the comp is really hot when it turns off...i will check that next time it happens

    does anyone know how to clean a fan by any chance in the macbook?
     

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