Dell OptiPlex 100-Mbps Service Manual page 43

Table 3-2. System Error Messages (continued)
Message
Sector not
found
Seek error
Seek opera-
tion failed
Shutdown fail-
ure
Terminator/
processor
card not
installed!
System HALTED!
Time-of-day
clock stopped
Time-of-day
not set
Timer chip
counter 2
failed
Unexpected
interrupt in
protected mode
Warning-
Thermal
probes failed
Definition
MS-DOS unable to
locate sector on diskette
or hard-disk drive.
MS-DOS unable to
locate specific track on
diskette or hard-disk
drive.
System could not find
particular address mark
on disk.
System board chip
faulty.
System does not have
terminator or add-in
card.
Backup battery low.
Time or Date settings in
System Setup program
incorrect, or backup bat-
tery bad.
Timer circuit on system
board malfunctioning.
Keyboard/mouse con-
troller malfunctioning,
or one or more DIMMs
improperly seated.
At system start-up,
BIOS detected that one
or both thermal probes
are nonoperational.
Probable Causes
Defective sectors on dis-
kette or hard-disk drive.
Defective diskette or
hard-disk drive.
Faulty diskette or hard-
disk drive.
Defective system board.
Terminator or add-in
card improperly
installed, or no card
installed.
Defective battery or
faulty chip (defective sys-
tem board).
Incorrect Time or Date
settings, or defective
backup battery.
Defective system board.
Improperly seated
DIMMs or faulty key-
board/mouse controller
chip (defective system
board).
Defective system board.
Beep Codes and Error Messages 3-9