Powerbook G4 15" - Sleep and Shutdown Problems

Discussion in 'PowerPC Macs' started by scator87m, Jan 23, 2008.

  1. macrumors newbie

    Joined:
    Jan 17, 2008
    #1
    Ok so here it goes...


    I have a Powerbook G4 15" which I've had since they were first released. The only thing I've changed was updating the Ram to 1 gig, and am still running OS X.

    As of about six months ago my Powerbook would randomly put itself into sleep mode, weather it be while I was working or while I was away from the computer. Sometimes I coulkd wake it up, but lately it will not awake from hibernation and I have to remove the battery and wait for it to shut off before I can restart it.

    I have tried some simple fixes, inlcuding changing every sleep and hibernation option, re-installing OS X, and even running the Powerbook in safe mode for a while. Sometimes the probem won't occur for weeks, then it will occur everyday for days in a row.

    I have no idea whats going on, any ideas?

    Thanks
     
  2. macrumors 68000

    Reflow

    Joined:
    Mar 30, 2005
    Location:
    NJ/PHL
    #2
    Ok I'll have ever reset the Pram or the PMU. Here are the instructions.
     
  3. thread starter macrumors newbie

    Joined:
    Jan 17, 2008
    #3
    Thanks for the guide.

    I'll try it tonight and hopefully it'll work, sounds like it should.
     
  4. macrumors 68000

    Reflow

    Joined:
    Mar 30, 2005
    Location:
    NJ/PHL
    #4
    Post back your out come.
     
  5. macrumors newbie

    Joined:
    Jul 11, 2008
    #5
    Hi,
    I have the exact same problem. My Powerbook G4 (1,67Ghz), is going to sleep randomly and for no reason. Sometimes I even have trouble waking it again.

    I already tried the enerysaver, re-installing OS X, resetting PRAM, NVRAM and PMU. None of these have solved the problem :-(!

    Does anybody have any further solutions???????
     
  6. macrumors 65816

    agentphish

    Joined:
    Sep 7, 2004
    #6
    It could also be a BAD pmu as well... which is a tough repair to do yourself unless you're pretty comfortable tinkering inside a laptop like a powerbook from what I have gathered.

    I thought I had a bad one and looked into it but it turned out to be something else.

    The part is like 70-100 bucks or something. Research it on google.
     
  7. macrumors newbie

    Joined:
    Jul 11, 2008
    #7
    Hi there,
    thanks for your help. I was just given the advice to check my heat sensors and discpvered that its registereing 206°C on the trackpad temperature :-((((!
    Is there anyway to disable this sensor? or any other way to avoid an expensive repair by apple itself?
    thanks.
     

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