MBP Shutting Down Randomly

Discussion in 'MacBook Pro' started by AppleGuy1980, Feb 7, 2010.

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  1. AppleGuy1980, Feb 7, 2010

    AppleGuy1980 macrumors member

    Joined:
    Jun 7, 2008
    #1
    So, for the last week or so I'm been experiencing very strange symptoms, which I think are probably all connected:

    1) My MBP (running 10.5.8 bought in August 2008) has from time to time just been turning itself off. Like, I'm just working on something and then it suddenly turns off.
    2) My mouse from time to time stops responding to input, sometimes the keyboard does the same thing
    3) When I restart after 1 or 2 occurs, it doesn't work. The computer turns on, I get to the screen with the apple on it (there's a chime all of that), then it goes to a plain blue screen and just stays there - the log in box never comes up.
    4) In what I think may be related, my computer seems to be running extremely "hot" right now. After just normal use, I'm reaching GPU temperatures as high as 75 degrees according to iStat and CPU temps around 70.

    Anyway, I haven't spilled anything, dropped it, or anything like that. Any ideas what might be wrong? Do I need to take it into the Apple store (still under AppleCare but getting to the Apple store is a mega-hassle for me).
     
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  2. MacModMachine, Feb 7, 2010

    MacModMachine macrumors 68020

    MacModMachine

    Joined:
    Apr 3, 2009
    Location:
    Canada
    #2
    this will sound weird....but it sounds like a unseated cpu issue....since the cpu's are soldered on it may be getting hot enough to cause the chip to lift from the board in spots.

    i have replaced logic boards in mac's that has cpu's that came unsoldered in spots only under heat 80-90c.

    solder does not normally flow at those temp's but a crappy solder flow can cause this to happen.

    this could also be a known gpu recall issue.
     
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  3. fatgorilla, Feb 7, 2010

    fatgorilla macrumors newbie

    Joined:
    Jun 11, 2009
    #3
    Its because of the heat. When the CPU temperature reaches a threshold level, the computer automatically shuts down to prevent internal damage. I suggest perform a clean format and reinstall.
     
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  4. MacModMachine, Feb 7, 2010

    MacModMachine macrumors 68020

    MacModMachine

    Joined:
    Apr 3, 2009
    Location:
    Canada
    #4
    after reviewing your post...i should have read the whole thing....your problem is definitly GPU related.


    your logic board will have to soon be replaced.


    http://support.apple.com/kb/TS2377

    you may be covered under this recall.

    if your in canada pm me i can give you a case id.
     
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