Troubleshooting Guide
No Error Codes or Messages
Problem
Cause and Action
The screen is blank and
you do not hear any
beeps.
Note: If you are not sure
whether you heard any
beeps, power off the
computer; then power it
on again, and listen again.
If you are using an
external monitor, go to
“External Monitor
Problems” on page 148.
If a power-on password is set, press any key to display the power-on password
prompt, and then type the correct password and press Enter (see page 96).
If the power-on password does not appear, the brightness control lever might be
set to minimum brightness. Adjust the brightness level.
If the screen still remains blank, make sure that:
The battery pack is installed correctly.
The AC Adapter is connected to the computer and the power cord is
plugged into a working electrical outlet.
The computer power is on. (Turn on the power switch again for
confirmation.)
If these items are correct and the screen remains blank, have the computer
serviced.
The screen is blank and
you hear a continuous
beep, or two or more
beeps.
Have the computer serviced.
Only the cursor appears.
Reinstall your operating system and power on the computer.
If you still have a problem, have the computer serviced.
Input Problems
Problem
Cause and Action
The cursor does not move
after the computer
awakens from one of the
power management
modes.
Make sure you followed the instructions in “Advanced” in the
Online User's
Guide correctly when you installed Windows with the Advanced Power
Management (APM) option.
Chapter 4. Solving Computer Problems
131
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