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