Dell Vostro 420 (Late 2008) - Manual (Page 43)

Troubleshooting
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H ARD - DISK DRIVE FAILURE — The hard drive does not respond to commands
from the computer. Shut down the computer, remove the hard drive (see your
Service Manual at support.dell.com), and boot the computer from a CD.
Then, shut down the computer, reinstall the hard drive, and restart the
computer. If the problem persists, try another drive. Run the Hard Disk Drive
tests in the Dell Diagnostics (see "Dell Diagnostics" on page 48).
H ARD - DISK DRIVE READ FAILURE — The hard drive may be defective. Shut
down the computer, remove the hard drive (see your Service Manual at
support.dell.com), and boot the computer from a CD. Then, shut down the
computer, reinstall the hard drive, and restart the computer. If the problem
persists, try another drive. Run the Hard Disk Drive tests in the Dell
Diagnostics (see "Dell Diagnostics" on page 48).
I NSERT BOOTABLE MEDIA — The operating system is trying to boot to
nonbootable media, such as a floppy disk or CD. Insert bootable media.
I NVALID CONFIGURATION INFORMATION - PLEASE RUN S YSTEM S ETUP
P ROGRAM — The system configuration information does not match the
hardware configuration. The message is most likely to occur after a memory
module is installed. Correct the appropriate options in the system setup
program. See your Service Manual at support.dell.com for more information.
K EYBOARD CLOCK LINE FAILURE — For external keyboards, check the cable
connection. Run the Keyboard Controller test in the Dell Diagnostics (see
"Dell Diagnostics" on page 48).
K EYBOARD CONTROLLER FAILURE — For external keyboards, check the cable
connection. Restart the computer, and avoid touching the keyboard or the
mouse during the boot routine. Run the Keyboard Controller test in the Dell
Diagnostics (see "Dell Diagnostics" on page 48).
K EYBOARD DATA LINE FAILURE — For external keyboards, check the cable
connection. Run the Keyboard Controller test in the Dell Diagnostics (see
"Dell Diagnostics" on page 48).
K EYBOARD STUCK KEY FAILURE — For external keyboards or keypads, check the
cable connection. Restart the computer, and avoid touching the keyboard or
keys during the boot routine. Run the Stuck Key test in the Dell Diagnostics
(see "Dell Diagnostics" on page 48).
L ICENSED CONTENT IS NOT ACCESSIBLE IN M EDIA D IRECT — Dell™
MediaDirect™ cannot verify the Digital Rights Management (DRM)
restrictions on the file, so the file cannot be played (see "Dell Diagnostics" on
page 48).