[jtgolfer]

I'm dealing with a friend's G4 933MHz iBook (Tiger OS). During the boot process it either freezes or advances to the Apple Logo and "spinning wheel" screen and then goes to a blue screen.

I connected it to my laptop in Target Disk Mode and ran Disk Utility. The HD tested OK. I could add or retrieve files without a problem. I also booted into the mode where you see only the command line. I did a check disk and again, no problems.

I have zapped the PRAM and reset the PMU. The latter step helped bring it along a little.

It will not start up off DiskWarrior or a Tiger OS Install Disk. In both cases it eventually freezes or goes to blue screen.

I'm not too wild about undertaking the 50-plus steps for swapping a logic board, but I would if I knew that would fix it.

Thanks.

[ibook_steve]

Why don't you try reinstalling (archive & install or clean) the OS over target disk mode if the machine itself can't boot from an OS install disk?

Steve

[dowNNshift]

....

[jtgolfer]

To Steve — that's an alternative but I thought I'd get some opinions first. I have cleaned off the drive but will have to locate a PPC Mac to install in TDM.

to dowNNshift — Used boards are available on eBay for less than $125 and I'll do the labor for free.

Thanks.

[dowNNshift]

You get what you pay for....

[jtgolfer]

Yeah, and sometimes you overpay. A new board is worth more than the iBook.

It's definitely worth the gamble for someone who can't afford to lay out what you removed from your post.

[jtgolfer]

Steve,

The iBook froze twice in TDM when I was trying to install from another G4 Mac. I then attached an external, bootable HD with 10.4 installed and restarted the iBook. Once the spinning wheel appeared the boot process froze.

I also tried to boot in Safe Mode and got a Kernel Panic.

[polendo]

First things first.. check if there is any third party ram installed. If so, remove and try again. Good luck.