Dell LATITUDE D400 - Manual (Page 19)

" Using the System Setup Program ."
Timer chip counter 2 failed — A chip on the system board may be malfunctioning. Run the System Set tests
as described in " Using the Dell Diagnostics ."
Unexpected interrupt in protected mode — The keyboard controller may be malfunctioning, or a memory
module may be loose. Run the System Memory tests and the Keyboard Controller test as described in " Using
the Dell Diagnostics ."
x:\ is not accessible. The device is not ready — Insert a disk into the drive and try again.
Warning: Battery is critically low — The battery is running out of charge . Replace the battery, or connect
the computer to an electrical outlet. Otherwise, activate hibernate mode or turn off the computer.
Video and Display Problems
Fill out the Diagnostics Checklist as you complete these checks.
If the display is blank
NOTE: If you are using a program that requires a higher resolution than your computer supports, it is recommended
that you attach an external monitor to your computer.
Check the battery — If you are using a battery to power your computer, the battery charge may be depleted.
Connect the computer to an electrical outlet using the AC adapter, and turn on the computer.
Test the electrical outlet — Ensure that the electrical outlet is working by testing it with another device, such
as a lamp.
Check the AC adapter — Check the AC adapter cable connections. If the AC adapter has a light, ensure that
the light is on.
Connect the computer directly to an electrical outlet — Bypass power protection devices, power strips,
and the extension cable to verify that the computer turns on.
Adjust the power properties — Search for the keyword standby in Windows Help or the Windows Help and
Support Center .
Switch the video image — If your computer is attached to an external monitor, press to switch
the video image to the display.
If the display is difficult to read
Adjust the brightness — See " Adjusting Brightness " for instructions on adjusting the brightness.
Move the subwoofer away from the computer or monitor — If your external speaker system includes a
subwoofer, ensure that the subwoofer is at least 60 cm (2 ft) away from the computer or external monitor.
Eliminate possible interference — Turn off nearby fans, fluorescent lights, halogen lamps, or other
appliances.