Why does my MacBook Pro restart spontaneously?

Posted on 2011-04-29
Last Modified: 2012-05-11
I bought my Mac Book Pro 4 years and 3 months ago.  Recently, (last 6 months) it has been
restarting by itself about  2 -3 times /day. I have read many posts from people
having a very similar issue but no solutions. Any ideas?
Question by:PDSWSS
    LVL 4

    Expert Comment

    First.......... check for any firmware update - hope this provides a solution to your problem.
    LVL 15

    Expert Comment

    which model do you have?
    The power supply could be on it's way out...
    try using the laptop on power alone, with the battery removed and see if this affects anything.
    Do you have much battery capacity without power cord plugged in?

    Author Comment

    riplus:  Thanks. However, I have the latest firmware version.

    Author Comment

    roylong:  Version 1.1

    Also reads battery remaining incorrectly at 99%. Says 4:22 - However, at 50 % =  40 minutes.

    Why would removing the battery affect anything?
    BTW - Problem usually occurs when plugged into a second monitor. Thanks

    Accepted Solution

    It appears that the restart issue occurs when I have my MacBook Pro plugged into a 2nd monitor.
    Any ideas?

    Author Closing Comment

    Esoteric issue.

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