Question about Apple PowerBook G4 Mac Notebook

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Overheating PowerBook G4 17" 1.67Ghz

My PowerBook seems to operate normally with normal operating temperatures except for the following: Five times i have left my PowerBook for approx 4 hours only to return and find it very hot to the touch. (160 degrees F). One time the PB was in sleep mode and the other it times was shut down. Sometimes the lid was closed, sometimes open. It sits on a wood desk top plugged into the Apple power supply, a powered USB 6 port hub, and an Apple 23" flat panel display. I have a DSL modem connected via Apple Airport but the modem is switched off at the times of the overheating problems. There is adequate ventelation room all around the PB, and nothing is on top of it. The ambient room temperature is between 50 and 65 degrees F. The problems have occured between the end of March 2007 and the first of June 2007, so the overheating is not happening each time i leave the PB, only some times. I have reset the PB Power Management Unit as listed on Apple's web site. (tech article 14449) Any suggestions will be greatly appreciated.

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Re: overheating PowerBook G4 17" 1.67Ghz

For my pb I have changed the energy saver options to minimal, this prevents the overheating.
The overheating is due to the memory used by the applications in use. -----------> in my experience!

Posted on Apr 13, 2008

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Re: overheating PowerBook G4 17" 1.67Ghz

If you have AppleCare and your PB is less than 3 yrs old, take it in- that seems abnormal. It's really strange that your PB was heating up while it was shut down. THat indicated that there is s/thing wrong with the shutdown mechanism. Make sure the machine is hsut down before closing the lid. Let it rest a minute.

Posted on Jun 30, 2007

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Can I use a password reset disk to change the password on a powerbook g4?

Your absolute best bet is to re-install the system operation system.OS 10.5 is your brts bet. then follow the instructions and answer all of the needed information. Because I live alone and my computer is never out of my personal living area, I never instal a password. But this is your choice also.

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I have a mac powerbook g4 and there a password preventing me to use the laptop i am worried because the person who gave to me is a password changer and has forgot it. thank you to help me

If you do not care about any of the files on the computer, all you have to do is reformat the drive. This will wipe the drive clean and allow you to reinstall the Operating System and essentially have a brand new computer.
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Dec 14, 2010 | Apple PowerBook G4 Mac Notebook

1 Answer

Turn on my powerbook G4 but there isn't a chime and nothing comes on the lcd screen

If there's no chime, your problem could be anything from a dead battery or bad AC adapter to a dead logic board.
Does the tip of the adapter on your AC connector light up? If not, that's a problem.
When you push the button on the battery, do you get at least two glowing LCDs? If not, that's a problem.
Otherwise, try the following: remove the battery and the AC jack to make sure the machine is off. Now insert the AC jack, and reset the power management unit by pressing the following multi-key combination:
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Wait five seconds, then press the power button to attempt to start the computer normally.
The instructions above are for the 1.5GHz PowerBook G4; the instructions MAY be different if that is not your model.

Nov 01, 2010 | Apple PowerBook G4 Mac Notebook

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My powerbook g4 is not starting. it opens the gray screen and just says i need to restart the computer. i tried restarting it and removing the battery a bunch of time and nothing is happening. HELP!!!

I am going to have you take your Mac into Safe Mode to see if we can't remove a possible folder(s) that may be affecting your Mac's start up function.

Try these steps:

• Reboot your Mac
• Upon restarting your Mac, press the Shift key.
• Hold the Shift key until you see a White Screen with Gray Apple icon and eventually a spinning gear.
• When you see the Spinning gear, release the Shift key.
• Allow the Powerbook G4 to continue booting up. Also this may take a little while
(NOTE: this may take anywhere from 5 to 15 minutes to load to the Safe mode screen depending on the performance of your Mac, but if it exceeds this time, shutdown your Powerbook G4 and try just once more. It may have just frozen up the first time around for you.)

• You are going to enter the Safe Mode (which looks like your main desktop environment - the only difference is certain start up items are disabled.)

• Once within the Desktop in Safe Mode
• From the Finder Menu, click Go> Go to Folder
• Type in this line: /System/Library/StartupItems
• This path, is going to take you to the System Library folder which has all of your Mac OS X Startupitems.
• Remove all of those folders to the Trash.

*Reboot your Mac normally and see if you can access your normal User desktop environment.

At times this procedure does help for gray screen issues so give this a try and let me know if this helps.



Jan 25, 2010 | Apple PowerBook G4 Mac Notebook

1 Answer

Normal operating temperature of Apple Ibook Power supply ?

Use the free App called iStat Pro to monitor ALL temperatures. Give your Mac some air (literally)
There is a big difference between CPU Temp and, for example Enclosure.
You also may have a very high CPU usage for a while.
Check if your fans are running high I.E 6000 Rpm

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DVD player skips audio and/or frames

PowerBook G4 is at least a five-year-old machine at this point. A DVD drive can **** in lots of dust in five years. Try hooking up to an external DVD drive. If it plays the same discs with no problem, you need a cleaning or replacement. Frankly, an external DVD drive is cheaper than replacing your internal drive.

Mar 07, 2009 | Apple PowerBook G4 Mac Notebook

1 Answer

Mac Powerbook Software Issues


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Jun 11, 2008 | Apple PowerBook G4 Mac Notebook

1 Answer


Why are you using the adapter? is the ethernet port not functioning? Plus modem activity causes no heat, as it requires no internal moving parts. The only moving parts in that model are the fans, hard drive and optical drive. Maybe you should elevate the computer with a laptop stand. It buts space and allows airflow between the bottom of the unit and the surface it is sitting on.


In the photo above, you can see that a OS X ( 10.4 or later ) Apple computer has a utility called activity monitor. It allows the user to see processes going on behind the screen, as which apps or utilizing more of the processor, ram memory and hard drive space. The number one cause of the machine over heating is the processor working hard to crank out the mathmatics needed to calculate and deliver all the commands we ask of it. When the CORE processor temperature rises, the fan speed up to cool the environment down.

I would also examine where on the machine is the heat coming from, as it should give you a clue as to what is working so hard. Also, keep in mind that laptops are going to get hot, and this is normal. If your memory is low, if you keep cds or dvds in the drive, if you have many applications open, if you keep youre bluetooth and wireless card on constantly when not in use, if the laptop top rests on a flat surface or soft surface like a blanket, alll these are common reason why laptops overheat. Make sure the vents are not obstructed and the overall room temperature is mild.

Keep me posted.

Dec 31, 2007 | Apple PowerBook G4 Mac Notebook

1 Answer

Start up

Try rebooting into safe mode, then emptying your trash and restarting to normal operation. In safe mode, all internet is dissabled, so dont go trying to fire up the bluetooth or wi fi. The systme trashes unneccessary fonts and cache that can complicate the boot up.

If that does not remedy, try getting anothe rmacintosh running 10.3 or higher and a firewire cable. Boot your powerbook into TARGET DISK MODE and from the other mac go to UTILITIES and run permissions on your powerbook ( it should be on the left pane in DISK UTILITIES )

These are a few quick fixes, if they dont remedy the situation, keep me posted and try providing more info, like which version of osx, what you were downloading, and what apps were open when it was last functional.

Keep me posted.

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Sep 16, 2007 | Apple PowerBook G4 Mac Notebook

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