Dell Latitude C640 - Manual (Page 57)

AC Adapter
Rating Computer
Undocked Using Dell C/Port
APR
Using Dell C/Dock Expansion
Station
90 W maximum
performance maximum performance maximum performance
70 W maximum
performance maximum performance battery optimized (reduced
performance)
50 W N/A N/A N/A
Error Messages
If the message is not listed, see the documentation for the operating system or the program that was
running at the time the message appeared.
Auxiliary device failure - The touch pad, track stick, or external PS/2 mouse may be
faulty. For an external mouse, check the cable connection. Enable the Pointing Device
option in the system setup program. If the problem persists,
contact Dell .
Bad command or file name - Ensure that you have spelled the command correctly,
put spaces in the proper place, and used the correct pathname.
Cache disabled due to failure - The primary cache internal to the microprocessor has
failed. Contact Dell .
CD drive controller failure - The CD drive does not respond to commands from the
computer. See " Drive Problems ."
Data error - The floppy or hard drive cannot read the data. See " Drive Problems ."
Decreasing available memory - One or more memory modules may be faulty or
improperly seated. Reseat the memory modules and, if necessary, replace them. See
"
Adding Memory .
Disk C: failed initialization - The hard drive failed initialization. Run the Hard-Disk
Drive tests as described in " Using the Dell Diagnostics ."
Floppy drive 0 seek failure - The system configuration information may not match the
hardware configuration. Run the Diskette tests as described in " Using the 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 ."