Beep Codes and Error Messages 3-9
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.
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 setting in
System Setup program
incorrect, or system bat-
tery bad.
Incorrect Time or Date
settings or defective sys-
tem 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).
Write fault
Write fault
on selected
drive
MS-DOS cannot write
to diskette or hard-disk
drive.
Faulty diskette or hard-
disk drive.
Table 3-2. System Error Messages
(continued)
Message Definition Probable Causes
