Dell Latitude C840 - Manual (Page 83)

Floppy drive 0 seek failure — The system configuration information may not match the hardware configuration. Run the Diskette tests
as described in " Dell Diagnostics ."
Diskette read failure — The floppy disk may be defective. If the drive access light turns on, try a different disk. See " Drive Problems ."
Diskette subsystem reset failed — The floppy drive controller may be faulty. Run the Diskette tests as described in " Dell Diagnostics ."
Diskette write-protected — Because the floppy disk is write-protected, the operation cannot be completed. Slide the write-protect
notch.
Drive not ready — The operation requires a floppy disk in the drive or a hard drive in the bay before it can continue. Insert a floppy
disk, or push the floppy disk all the way into the drive until the eject button pops out. Or, install a hard drive in the hard drive bay.
Error reading PCMCIA card — The computer cannot identify the PC Card. Reinsert the card or try another PC Card.
Extended memory size has changed — The amount of memory recorded in NVRAM does not match the memory installed in the
computer. Restart the computer. If the error appears again, contact Dell .
Gate A20 failure — A memory module may be loose. Reinstall the memory modules and, if necessary, replace them.
General failure — The operating system is unable to carry out the command. This message is usually followed by specific information—
for example, Printer out of paper. Take the appropriate action.
Hard-disk drive configuration error — The computer cannot identify the drive type. Turn off the computer, remove the hard drive , and
boot the computer from a bootable floppy disk or CD. Then turn off the computer, reinstall the hard drive, and restart the computer.
Run the Hard-Disk Drive tests as described in "
Dell Diagnostics ."
Hard-disk drive controller failure 0 — The hard drive does not respond to commands from the computer. Turn off the computer, remove
the hard drive , and boot the computer from a bootable floppy disk or CD. Then turn off the computer, reinstall the hard drive, and
restart the computer. If the problem persists, try another drive. Run the Hard-Disk Drive tests as described in " Dell Diagnostics ."
Hard-disk drive failure — The hard drive does not respond to commands from the computer. Turn off the computer, remove the hard
drive , and boot the computer from a bootable floppy disk or CD. Then turn off the computer, reinstall the hard drive, and restart the
computer. If the problem persists, try another drive. Run the Hard-Disk Drive tests as described in " Dell Diagnostics ."
Hard-disk drive read failure — The hard drive may be defective. Turn off the computer, remove the hard drive , and boot the computer
from a bootable floppy disk or CD. Then turn off the computer, reinstall the hard drive, and restart the computer. If the problem
persists, try another drive. Run the Hard-Disk Drive tests as described in "
Dell Diagnostics ."
Insert bootable media — The operating system is trying to boot to a nonbootable floppy disk or CD. Insert a bootable floppy disk or CD.
Invalid configuration information-please run System Setup Program — The system configuration information does not match the
hardware configuration. This message is most likely to occur after a memory module is installed. Correct the appropriate options in the
system setup program. See "
Using the System Setup Program ."
Keyboard clock line failure — For external keyboards, check the cable connection. Run the Keyboard Controller test as described in
" Dell Diagnostics ."
Keyboard 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 as described in " Dell Diagnostics ."
Keyboard data line failure — For external keyboards, check the cable connection. Run the Keyboard Controller test as described in
" Dell Diagnostics ."
Keyboard 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 as described in " Dell Diagnostics ."
Memory address line failure at address, read value expecting value — A memory module may be faulty or improperly seated. Reinstall
the memory modules and, if necessary, replace them.