Technical information

Symptom Charts / Startup Problems FlowchartTroubleshooting
PowerBook (FireWire)
Startup Problems Flowchart (continued)
1. Start up with extensions off.
2. Start up with the CD that
comes with the computer
(press the C key).
3. Replace the hard drive.
4. Replace the I/O logic
board.
END
Does
the
PowerBook continue
to start up to the
desktop?
No
Yes
No
Yes
No
Do the
trackpad and
keyboard
function?
1. Reset the power manager.
2. Check the trackpad and
keyboard cables.
3. Replace the trackpad and
keyboard cables.
4. Replace the trackpad.
5. Replace the keyboard.
6. Replace the I/O logic board.
Yes
Does
the flashing
question mark
appear?
1
Go to
Start
Insert a known-good
CD-ROM or DVD disc
and see if it mounts.
No
Does the
disc
mount?
Yes
1. Reset PRAM.
2. Start up from the CD that comes with the computer.
3. If hard drive appears, reinstall system software.
4. If hard drive doesn't appear,see if Drive Setup
can reformat it.
5. Replace the hard drive cable.
6. Replace the hard drive.
7. Replace the I/O logic board.
1. Check for proper software drivers.
2. Reseat the module.
3. Replace the module.
4. Replace the I/O logic board