Question about Apple iBook G4 Mac Notebook

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My G4 kernel paniced and now will not fully reboot.  It tries to start.  It takes me to the screen to log in, the dock appears, but the icons on the desktop never show up and the menu bar only appears in the top right corner.   Only sign prior to this was a very slow download of some photos from a compact flash card.

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Take out the RAM chips and re-insert comes sometimes they don't get a good connection. Also, click on the blue apple and then click on about this mac to see if the RAM chips are identified and working. If not then, replace the RAM chips. Also, to to the system preferences and then click on accounts, and then click on login items. Delete all the programs that show up in the startup window, because sometimes they cause the system to boot incorrectly. Also, open up disk utility and click on repair permissions. All this mess should help you out a ton and then some.

Posted on Feb 08, 2010

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My computer freezes when starting up- Mac G4 933 Mz, will not start up using disc & holding down 'C" key


First, Try using Disk Utility to do a Disk Repair, as shown in this link, while booted up on your install disk.
You could have some directory corruption. Let us know what errors Disk Utility reports and if DU was able to repair them.
But it sounds like the following;
You are experiencing a Kernel Panic as seen and described in Apple doc.#106227. If not, disregard.
FJ has some good KP tips.
Here's the most used site for Resolving Kernel Panics. Please do all the steps in order, even if you don't think you need to do a certain step.
Do the Disk Repair first; that may do it! (let's Hope!)

Jul 23, 2008 | Computers & Internet

1 Answer

Mac laptop screen froze with message stating must turn off laptop


font.f1 { font: 12px Helvetica; } Thanks for asking your question with Fixya Support. I will be glad to assist you.

What you are experiencing is what is called a Kernel Panic.
A Kernel Panic, is a internal fatal error, detected by your system from which it
cannot recover from safely. Such an error can be the result of a software
function or operation failing to execute as it normally does, or halting without
warning, or even a hardware component, suddenly ceasing to operating
or simply shutting down. In either scenario, the system will display the frozen
black and white screen with the languages text listed.

Normally a simple reboot of your Macbook Pro will resolve the issue, but in some cases it can take a specific procedure to correct and prevent a kernel panic from occurring again.

So here are a few procedures you can use to resolve and prevent further kernel panics:


• First, hold in your power button for approximately 10 seconds to do a hard shutdown, if your Macbook Pro is still turned on.

• Once your Mac is shutdown, you will need to perform what is called a PRAM reset (Parameter RAM)

• Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously .

• Turn on the Macbook Pro.
• Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.

• Now, hold the keys down until the computer restarts and you hear the start up sound for the third time.

• Release the keys and allow the Macbook Pro to start up.

If your Macbook Pro starts up normally and does not go into another kernel panic, then you should be able to resume normal session activity on your Macbook Pro.

However, should the kernel panic return, then you can use an SMC Reset to correct the kernel panic:

-SMC RESET-
The System Management Controller is an integrated circuit (computer chip) that is usually on the logic board of your Mac portable.

It is responsible for power management of the computer. It controls back-lighting, hard disk spin down, sleep and wake, some charging aspects, trackpad control, and some input/output as it relates to the computer sleeping.

Shut down the computer.
• Disconnect the MagSafe power adapter from the computer, if it's connected.
• Remove the battery.
• Press and hold the power button for 5 seconds.
• Release the power button.
• Reconnect the battery and MagSafe power adapter.
• Press the power button to turn on the computer.

Once again, when you are back up to your main desktop, resume your normal session activity.
At this point there should be no further issue a the kernel panic rearing its ugly head once again.

If it does, then you will need to take more intensive steps such as inserting your Mac OS X installation disc and booting up to that disc and running Mac OS X's Disk Utility, to repair the hard drive and permissions of the Mac OS X system you are using.

I will leave you with that procedure, in the event you need to run Disk Utility:

Insert your Mac OS X Startup disk
•Reboot your Mac
•At the Apple Chime, press the C key and hold it until you see a White screen, gray Apple and eventually a Spinning gear.
• Release the C key only after you see the Spinning gear.
•Mac will boot from the start up disk to the Installer environment
• From the Installer Menu bar, click Utilities > Disk Utility and open up Disk Utility application.
• Click on on the hard drive at the top of the window in the left sidebar and
• Select "Repair Disk"
**Let Disk Utilities run this repair the disk until completion
• At the end of this process, reboot your Macbook Pro
Return back to you main desktop and again, resume your normal session activities.

Any more kernel panics after this, you may want to consider taking your Macbook Pro in for service at your local Apple retail store Genius Bar or local Apple authorized service provide in your area.

I hope this information proves helpful for you.

Regards,

-Mactechtrainer

Mar 30, 2011 | Apple Mac Book Pro 15.4" 2.53 Core2Duo 4GB...

1 Answer

When i try to boot my ibook g4 it gets stuck on a blue screen or the mac logo and it brings up a sign saying to shut down or restart.. i do this but it does it all over again..


The sign i believe you are referring to is a Kernel Panic, if it is a gray box that dims the screen. Example: http://www.ourhangout.net/archives/Kernel_Panic-1p0f.png
If this is the case, and you have your Mac OS X install dvd, try to boot off of the disc and use disk utility to repair the hard drive.

Dec 18, 2010 | Apple iBook G4 Mac Notebook

1 Answer

I have a Powerbook G4, and suddenly my airportcard stopped workin


OSX has become unreliable.
You could spend hours troubleshooting, or simply backup and re-install from disks, takes about 40 mins

Jun 20, 2010 | Apple PowerBook G4 Mac Notebook

1 Answer

I mac g4 kernel panic cant boot from CD to format . got kernel panic after security update.No Driver for this platform


This message indicates that the CD you are attempting to boot from is a release of the Mac OS which is incompatible with this model of Macintosh. I would recommend a retail disk of Tiger or Panther for this vintage Mac.

Mar 06, 2010 | Apple iMac G4 Desktop

1 Answer

Kernal panic alert screen will not respond


Well, if you erase the wrong files, you'll sure get a kernel panic.
To power down your PowerBook when there is a kernel panic on the screen (or any frozen state) you have to hold the power button for 10-15 seconds until the Mac shuts off. Then you can restart it.
If you deleted too many of the wrong files, it may not restart to your satisfaction. :-(

Sep 16, 2009 | Apple PowerBook G4 Mac Notebook

1 Answer

Kernal panic


Hello,

To reset nvram,
Press "cmd alt O F" at startup
Then enter:
reset_nvram (press enter)
reset_all (press enter)

A kernel panic can come from a lot of things (peripherals, corrupted file, or damaged hard drive or memory). The best is to check in the log file what caused the kernel panic, or to proceed step by step, checking one thing after the other, until the problem is resolved.

May 30, 2009 | Quicksilver Computers & Internet

1 Answer

Apple mac g4 laptop wont come on


Kernel panics are not what you have, you have a flashing question mark, it indicates there is a problem with either the hard drive or the operating system on the hard drive.

Kernel panics are different, the unit tries to start and then the unit crashes with a "kernel panic"

Feb 19, 2009 | Apple PowerBook G4 Mac Notebook

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