9 Replies Latest reply: Sep 7, 2008 7:40 PM by Douglas Dielle
Douglas Dielle Level 2 Level 2 (200 points)
Was watching a movie on the PB and the screen suddenly went blank. Think it sorta went to sleep and I had to wake it up several times.

Now I can't get it boot.

If I take out the battery, power up, the fans come on and stay there permanently with a blank screen.

If I put in the battery and charged with the power adapter , it gets into the gray screen but shuts down right after that.

I must say that my battery has served its 3 years is completely flat and needs a replacement. But I continue to use it just so it keeps the time on the OS.

Resetting PRAM did not help.

What exactly is the problem?

Mac OS X (10.5.3)
  • BGreg Level 6 Level 6 (17,500 points)
    I must say that my battery has served its 3 years is completely flat and needs a replacement. But I continue to use it just so it keeps the time on the OS.


    The 17" Powerbook has an internal battery, different from your 3 year old external battery, to keep the date and time current. Of course if that battery is dead, cutting all power will reset the time.

    You might try resetting the Power Management Unit: http://support.apple.com/kb/HT1431

    Have you tried booting from your OS X disc? Insert it and boot holding the C key, which will cause the system to boot from it.

    Your description sounds like a logic board issue more than a disk drive issue. If the PMU reset doesn't help, you might check with your local Apple store to see if they offer a 'fix everything' service. Others have reported Apple stores offer this for around $350. Note if it turns out to be a hard drive problem, Apple will keep your current hard drive in trade for a new one, a practice some people object to due to personal data on the hard drive.
  • Allan Jones Level 7 Level 7 (32,240 points)
    Sometimes a period of several days of low usage on A/C power will pump a little life into the backup battery. My PB17 had been off all power for months when I got it and would not hold date/time. After running it on A/C and leaving it plugged in for a couple of weeks, the backup battery is again working. Your mileage may vary.
  • Douglas Dielle Level 2 Level 2 (200 points)
    Sometimes a period of several days of low usage on A/C power will pump a little life into the backup battery. My PB17 had been off all power for months when I got it and would not hold date/time. After running it on A/C and leaving it plugged in for a couple of weeks, the backup battery is again working. Your mileage may vary.


    I noticed that if I try to charge the battery, the green light stays for a minute but goes blank after a while.

    What could this mean?

    Should I try replacing the internal battery?
  • arnie Level 5 Level 5 (4,065 points)
    could be bad power adapter, battery or a logic board.

    maybe try running the PowerBook form the adapter only, with the battery removed.

    if works that way, could be a bad battery.
  • Douglas Dielle Level 2 Level 2 (200 points)
    Tested using another power supply (without battery) and the fans come on at boot at nothing else.

    Tested with power supply + battery; gets to the gray screen but shuts down right after that, and green light on the power supply goes off (believe charging process is terminated).

    The battery is known to be dead, anyway.

    It's now at the service centre, diagnosis pending. This could be an opportunity to upgrade I guess.
  • arnie Level 5 Level 5 (4,065 points)
    since the power adapter and the battery were ruled out, could be the logic board.

    possibly could be a hard drive or DVD issue (unlikely though)
  • Douglas Dielle Level 2 Level 2 (200 points)
    Certainly not a HDD issue, 'cos I removed it and was able to boot it up off the MBP.

    I'm hoping that it's a dead PRAM battery, but then I'm quite eager to upgrade...so I'm happy whatever the result is.
  • 17G4PB Level 1 Level 1 (0 points)
    Douglas, what happened with your PB, I am having a very similar issue with mine. I really don't use it much and most of the time it sits and is on standby with the power adapter plugged in. A few times I have had some issues with the power adapter not working. Plug it in it turns green then shuts off. I would leave it for a day or 2 and comeback and it would start working again. I always thought it was a bad power supply because of how flaky the power supply has been. So the last time it went black and no amount of waiting would bring it back I went out and got a new one. Now when I boot my PB all I get is the fans going full bore for about 3 minutes then it shuts down again. I have tried this with and without the battery in the PB when I first started it I got the grey Apple logo screen then it shut down after about 5 seconds. It has been doing the bit with the fans ever since. I am hoping you will be able to shed some light on this problem for me or at least point me in the right direction to get it fixed.

    Thanks
  • Douglas Dielle Level 2 Level 2 (200 points)
    The service chaps pointed it to a bad Logic Board. I'm not really convinced though, dunno why.

    In any case, the unit now sleeps as a aluminium anchor in the store. Hope to sell the remaining usable parts to anyone who might be interested.

    Can't wait for Montevina!