G4 Ti Powerbook freezing

Discussion in 'PowerPC Macs' started by calvin.herbert, Sep 6, 2009.

  1. calvin.herbert macrumors newbie

    Sep 6, 2009
    my cherished tit powerbook which I stacked with 768 sdram and uprated to 667 Mhz last year freezes each time I use it. I have to force a shut down and restart every time.
    It's seven years old and I'm wondering whether it's reached the end of its natural, so to speak. Does anyone have any ideas as to what could be the cause / solution?
    The freezing is inconsistent - sometimes it'll run for an hour, sometimes just seconds which makes me think it could be an overheating issue.
    In searching the forums my search string first thru up threads re. replacing the thermal paste? Am I on the right lines there?
    Hope someone has experience of these issues and a resolution for me 'cause I don't want to ditch this lovely old girl yet.
  2. macintosh.apple macrumors 6502

    May 26, 2008
    you might want to think about changing that title;)
  3. Finlandboy macrumors 6502


    Oct 14, 2007
    Indianapolis, IN
  4. dbwie macrumors 6502

    Jun 11, 2007
    Albuquerque, NM, USA
    not sure...

    Are you getting kernel panics? You say you upgraded the processor? I didn't know they could be swapped out of powerbooks. Are there some compatability issues there if you have messed with the hardware?

    I'm not sure about the exact nature of the problem based on what you have described, but some general maintenance steps to try:

    1) zap the PRAM.
    2) reset the power manager.
    3) run disk utility, repair permissions and verify the disk.
    4) get a third party utility like Onyx and clean out the system cache.

    5) put the original factory apple RAM modules back in it. (In other words, restore the hardware to the original configuration when you got it from Apple)

    6) most importantly, back up your files.
  5. mkrishnan Moderator emeritus


    Jan 9, 2004
    Grand Rapids, MI, USA
    If by "uprating" the OP means overclocking, I would think the first suggestion would be to try clocking back down to the original speed... does that eliminate the crashes?
  6. SkyBell macrumors 604


    Sep 7, 2006
    Texas, unfortunately.
    Agreed, that would be my first step.

    Overclocking carries the risk of instability, among other things. I bet this is your problem.
  7. Shaduu macrumors 6502a


    Jan 31, 2007
    I'll sell you my 1GHz TiBook with two broken hinges. :D

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