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 Post subject: G4 Boot-up Troubles
PostPosted: Wed Dec 12, 2007 9:32 am 

Joined: Wed Dec 12, 2007 9:23 am
Posts: 1
PowerBook turns on and sticks at the light blue screen, apple logo and the spinning wheel of death. Won't boot up. Have tried to boot in Classic-mode, but no success.

Computer was shut down properly; plenty of HD space; no recent installs/upgrades that would lead to malfunction.

Also have tried:
_Removing battery & plugging back in
_holding 'c' key while start-up
_holding 'apple' + 'c' + 's' brings up a dos menu (unsure how to read)
_Start-up disc: computer kicks disc back out

Any ideas before I send in for diagnosis/repair?

 Post subject:
PostPosted: Thu Dec 20, 2007 11:37 am 
Site Admin

Joined: Mon Feb 24, 2003 1:58 am
Posts: 940
Have you tried multiple startup discs? If the unit spits out all discs and won't boot from the HD, the problem is likely more complicated.

Powerbook Medic

 Post subject: Try to mount it as a target disk
PostPosted: Thu Feb 07, 2008 6:07 pm 
First try to boot up with an install DVD
Then run Disc Utility and try to repair the file stuctures.
Try rebooting from the HD after that.
If that won't work, then shut it down manualy and then connect it via firewire to another mac.
Start up your machine while holding down 'T'
That will put you in target disc mode.
Now you should try running any kind of disk repairs you can throw at it.
I've found the Data Rescue works well when i need to get dta off a bad drive.
Also try Disk Warrior.
After you get the data off and saved elsewhere, you can try a couple things.
Format the drive with Disk Utility and re-install the OS.
If formating fails, physically remove the drive, wrap it in plastic wrap and put it in the freezer for a couple of hours (no I'm not kidding. It worked for me once and makes a lot more sense than the old 4 foot drop BS)
If your drive is warped due to overheating, this might get it back into shape.
Let it thaw out completely in the plastic. You don't want condensation to form inside the drive. Then put it back in (better yet, put it in an external enclosure) and cross your fingers.

Good luck

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