Filter
Top Products
Troubleshooting 91
If the computer won’t turn on or start up
m Make sure the power adapter is plugged into the computer and into a functioning
power outlet.
m Your battery may need to be recharged. Press the small button on the battery (see
page 55). You should see one to four lights indicating the battery’s level of charge.
m If that does not work, locate the reset button (see page 20) on the back panel of your
computer. Carefully press the button using the tip of a pen. Make sure the button
releases after you have pressed it.
Note: You may need to reset the date and time (using the Date & Time control panel in
Mac OS 9 or the Date & Time pane of System Preferences in Mac OS X) after you use the
reset button.
m If that does not work, press the Power button (®) and immediately hold down the
Command (x), Option, P, and R keys until you hear the startup sound a second time.
m If you recently installed additional memory, make sure that it is correctly installed and
that it is compatible with your computer. See whether removing it allows the computer to
start up.
m If you are still unable to start up your computer, see the service and support information
that came with your PowerBook for information on contacting Apple for service.