How to troubleshoot tutorial to rule out a hard drive, hardware and system install to prepare a Mac for Apple repair service one last chance to clear the problem information about how to prepare a Mac for Apple warranty service and repair by Apple Authorized Service Provider (AASP).
Reference guide for G4, G5 PowerPC PPC, Altivec CPU, Mac OS X, 10.2 Jaguar, OS 10.3 Panther OS10.4 Tiger 10.5 Leopard workstations, including dual core processors quad processors Macbook Pro laptops Intel Xeon Mac Pro IntelXeon MacPro computers.
Hopefully, we will complete this process and identify the culprit when we add it back on so test third party thoroughly and pay attention!
This service guide assumes you have already BACKUP ALL DOCUMENTS and performed all normal Mac OSX basic maintenance troubleshooting steps.
Be sure to use only the original Operating System (OS) Install CDs that came with the specific Mac (or a higher Retail OS version than the Mac shipped with). Do not use Install CDs or DVDs that came with another Macintosh computer.
Return Mac to factoryhardware configuration:
Step 12 resets the Pram. Step 13 forces Mac to boot from the CD.
You will need to reset time, date, Apple Talk and other preferences.
Rule out the hard drive:
Booted off the OS X 10.4 Install CD:
If the ERASE (Initialize) fails a Zero Out Data (ZeroWrite), or if bad blocks return, replace the hard drive.
Booted off the OS 9 Install CD:
Write Zeros feature forces the drive to repair bad blocks (takes 1hr per 10gb).
OS 9 Apple TestDisk (also takes 1hr per 10gb).
TestDisk is only necessary if you want to test your hard drive for Bad Blocks.
TestDisk is available in the Functions menu> Initialize Options.
More on ZeroWrite and TestDisk: Apple Knowledge Base Apple.com.
For specific numeric Mac OS error codes, try appleerrorcodes.com.
Booted off the OS 10.3 Install CD:
If the Initialize fails a ZeroWrite, or if bad blocks return, replace the hard drive.
Rule out the Install:
Install the Operating System OSX 10.4:
You will have a "brand new" Mac at this point (and your install and HardDisk will be ruled out).
Test around repetitively trying to duplicate the problem.
If problem duplicates here:
Send to Apple Authorized Service Provider (AASP) for bench testing AS IS do not install anything else.
Rule out the Prime SUSPECT:
Install ONLY the problem application:
Then send Mac to AASP for bench testing as is and let them tell you why it doesn't work.
If all issues cleared here, add hardware back one at a time, testing thoroughly and restarting several times before you add another hardware or driver.
It is very important to restart and test thoroughly after EVERY addition until you finish the install and burn the BACKUP.
DO NOT DRAG ANYTHING OLD back onto your new install this runs the risk of reintroducing corruption/viruses/SUSPECTS into your BackUp.
When you get done and fully tuned BACKiTUP! then drag back on any old your may require.
by: ©2003 G. BALLARD • www.gballard.net
Note: G. BALLARD prefers a shredding if he is wrong or unclear.