Dell Latitude D520 - Manual (Page 91)

Seek error — The operating system cannot find a specific track on the hard drive.
Shutdown failure — A chip on the system board may be malfunctioning. Run the System Set tests in the Dell Diagnostics (see Dell Diagnostics ).
Time-of-day clock lost power — System configuration settings are corrupted. Connect your computer to an electrical outlet to charge the battery. If the
problem persists, try to restore the data by entering the system setup program. Then immediately exit the program. If the message reappears, contact Dell
(see Contacting Dell).
Time-of-day clock stopped — The reserve battery that supports the system configuration settings may require recharging. Connect your computer to an
electrical outlet to charge the battery. If the problem persists, contact Dell (see Contacting Dell).
Time-of-day not set-please run the System Setup program — The time or date stored in the system setup program does not match the system clock. Correct
the settings for the Date and Time options (see System Setup Program).
Timer chip counter 2 failed — A chip on the system board may be malfunctioning. Run the System Set tests in the Dell Diagnostics (see 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 in the Dell Diagnostics (see 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 shut down the computer.
IEEE 1394 Device Problems
Ensure that the IEEE 1394 device is recognized by Windows —
Click Start® Control Panel® Printers and Other Hardware. If your IEEE 1394 device is listed, Windows recognizes the device.
If you have problems with an IEEE 1394 device —
If the device was provided by Dell, contact Dell (see Contacting Dell). If the device was provided by a different manufacturer, contact that manufacturer.
Ensure that the IEEE 1394 device is properly inserted into the connector
Keyboard Problems
Fill out the Diagnostics Checklist (see Diagnostics Checklist) as you perform the various checks.
External Keyboard problems
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTE: Use the integrated keyboard when running the Dell Diagnostics or the system setup program. When you attach an external keyboard, the
integrated keyboard remains fully functional.
NOTE: When you attach an external keyboard, the integrated keyboard remains fully functional.