PowerBook keeps going to sleep randomly

Discussion in 'PowerPC Macs' started by ATTACK7van!, Apr 16, 2008.

  1. macrumors newbie

    Joined:
    Apr 16, 2008
    #1
    Today after my powerbook froze up, i had to do a cold restart. This is a very rare occurrence so i didn't think much of it. Now my powerbook randomly goes into sleep mode. even if I am not pressing any keys. Its not sitting idle wither though; it will go into sleep mode even if I am actively using the trackpad. the powerbook is plugged in and indicates the battery is charging.

    OS X
    10.4.11

    Machine Name: PowerBook G4 15"
    Machine Model: PowerBook5,6
    CPU Type: PowerPC G4 (1.2)
    Number Of CPUs: 1
    CPU Speed: 1.5 GHz
    L2 Cache (per CPU): 512 KB
    Memory: 1 GB
    Bus Speed: 167 MHz
    Boot ROM Version: 4.9.1f3
    Serial Number: W853204SSQ6
    Sudden Motion Sensor:
    State: Enabled
    Version: 1.0
     
  2. macrumors 65816

    merl1n

    Joined:
    Mar 30, 2008
    Location:
    New Jersey, USA
    #2
    Sounds like something got corrupted when you forced-crashed the computer.

    Heres what you should do:

    1. SMC reset
    2. Reset PRAM
    3. Safe boot

    If you need instructions on how to do these let me know.
     
  3. macrumors 6502a

    beige matchbox

    Joined:
    Mar 16, 2005
    Location:
    Oxfordshire, UK
    #3
    Check the temps on the trackpad sensor, mine and a number of others went bananas, +/- 200º sending the powerbook into sleep mode as it was trying to save itself from overheating :)

    I removed one of the pins from the temp sensor, but i do believe apple have a new top panel which also includes an updated sensor.
     
  4. macrumors 6502a

    anirban

    Joined:
    Jan 9, 2007
    Location:
    Houston, TX
    #4
    Also verify disk permissions.
     
  5. thread starter macrumors newbie

    Joined:
    Apr 16, 2008
    #5
    thanks for the help guys.
    After restarting it seems to have alleviated the problems. I will preform some of the maintenance suggested in order to insure that the original caused of the problem is indeed fixed and dealt with.
     
  6. thread starter macrumors newbie

    Joined:
    Apr 16, 2008
    #6
    I already talked to merl1n about this but it seems that the random sleep has not been corrected...
    My PB seems to be going to sleep randomly after it runs for a while and gets hot. Not good. I suspect a fan is broken, there is not enough exhaust air coming out the back. The other suspect would be a heat sensor somewhere thinks the pb is overheating. However i, suspect it is the former due to the correlation of the pb getting hot and the sleep behavior. Is there a way I can definitively diagnose the problem?
     

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