ibook g4 auto reboot =(

Discussion in 'Macintosh Computers' started by cmx08, Apr 12, 2004.

  1. cmx08 macrumors regular

    Jan 20, 2004
    Canada, GMA
    my ibook g4 800 reboots itself after a long time been in the sleep mode.
    Anyone with this issue?

    i usually surf the net and leave 10 sites open and msn, after i come back from dinner, (1-2 hrs) the ibook is back to the login page and i didn't get the sites save -_-" but history is there

  2. latergator116 macrumors 68000


    Sep 30, 2003
    Providence, RI
    This used to happen to me, but I don't remember exactly what I did to fix it.

    Try resetting the PRAM by holding down these four keys at startup - "apple", "option", "P", and "R".


    If that does not work you may want to try resetting the PMU (power manager unit).
    1) Turn of the computer

    2) Reset the power manager by simultaneously pressing and then releasing Shift-Control-Option-power on the keyboard. Do not press the fn (Function) key while using this combination of keystrokes.

    3) Wait 5 seconds.

    4) Turn the computer back on.

    Good luck.

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