iBook keeps shutting down

Discussion in 'Macintosh Computers' started by kidA, Sep 1, 2005.

  1. kidA macrumors regular

    Jul 22, 2002
    i usually leave my iBook (14-inch, G4 1.33 GHz) to sleep at night and i rarely shut it down. well the other morning i picked it up and the light was flashing like normal for sleep. then i opened it up and the light went off but the screen stayed black. i pressed the space bar etc. but nothing happened. then i pressed the power button and it started up just like it would have if i'd shut it down the night before.

    then this evening i'm in class taking notes and i'm typing away then all of a sudden my computer is off. weird. then i turned it on and it started up just like i'd shut it down. this second time it happened when i started it up and everything booted it was like the power management unit had been reset. the date was set to 1969, time was 5:00 pm etc. i didn't do the key command to reset the pmu. what's going on here?
  2. wdlove macrumors P6


    Oct 20, 2002
    I would suggest try run Repair Permission. Applications > Utilities > Disk Utility

    Otherwise I would give AppleCare a call.
  3. rtjstevens macrumors regular

    Apr 20, 2004
    Sheffield + Bath UK

    Sounds as if it may be overheating; check all vents; clear out any fluff and ensure an adequate airflow.



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