Boot Lockup

R

recompute

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I searched for a thread regarding this type of lock up, and did try a couple of the fixes that worked for similar issues with no luck.

I am working on a 15" G4 1.67GHz 1GBDDR Powerbook, running Tiger 10.4. When I boot (clean new install) the machine freezes while the little circle is spinning, (not the beach ball, the grayscale one). If I boot in safe (hold shift at startup) the machine boots just fine.

I have tried a different HDD, different RAM and like mentioned before a clean install. I have cleared nvram, pram, resealed the thermal paste on both CPU and GPU to no avail. I hope that I am not looking at a MB transplant.

Does anyone have any idea why it would do this? The unit boots single user just fine. Boot into verbose does freeze.

Thanks for any ideas!
 
It looks like a hardware problem to me. Just try a different os (e.g. 10.3). How many memory modules are in the sytem. If possible try only 1. Apple has a problem with some systems, maybe your system is part of this problem. Check the apple website for that.

Good luck, Kees
 
Thanks for the thought. I have tried different Memory and slots. I will try loading up an old 10.1 that I have and see how that works. I will check to see if the model is up on the Apple site as having a known issue.

Thanks again.
 
You will find out that 10.1 can't work on your powerbook. The oldest system that will work is the system that shipped with your Powerbook. Depending on the model, that would be either 10.3.7, or if a Dual-layer SuperDrive model, would be 10.4.2

Have you tried booting to the Apple Hardware Test?
You'll find that on one of the restore DVDs that shipped with your book. There's booting instructions for that test on the label.
Run the extended test, and check for any errors reported.
 
Have a read of the Console logs for a frozen boot and a safe boot and see where it is tripping up. This may give a clue as to the source of the problem (although the step that is causing a problem may not be written to the log).
 
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