Dell OptiPlex N Service Manual page 40

3-6 Dell OptiPlex N Systems Service Manual
Table 3-2. System Error Messages (continued)
Message
Diskette sub-
system reset
failed
Diskette write
protected
Drive not
ready
Gate A20
failure
General
failure
Hard disk
controller
failure
Hard disk
drive read
failure
Hard disk
failure
Invalid con-
figuration
information -
please run
SETUP program
Keyboard clock
line failure
Keyboard
controller
failure
Definition
Computer could not
successfully issue reset
command to diskette
controller.
Diskette write-protect
feature activated.
Diskette missing from
or improperly inserted
in diskette drive.
Gate A20 of the
keyboard controller
malfunctioned.
Operating system can-
not execute command.
Hard-disk drive failed to
initialize.
System Setup program
contains incorrect
system configuration
settings.
System cannot commu-
nicate with keyboard.
Keyboard/mouse con-
troller failed.
Probable Causes
Faulty diskette/tape drive
controller (defective sys-
tem board).
Diskette write-protected.
Defective, unformatted,
or improperly inserted
diskette.
Faulty keyboard control-
ler (defective system
board).
Operating system cor-
rupted or not installed
properly.
Incorrect configuration
settings in System Setup
program, improperly con-
nected hard-disk drive
cable, faulty hard-disk
drive controller sub-
system (defective system
board), or loose power
cable.
Incorrect configuration
settings in System Setup
program or faulty battery.
Keyboard cable connec-
tor loose or improperly
connected, defective
keyboard, or defective
keyboard/mouse control-
ler (defective system
board).
Defective keyboard/
mouse controller (defec-
tive system board).