Dell OptiPlex N Service Manual (.pdf) - Page 43

Incorrect Time or Date, clock stopped

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Table 3-2. System Error Messages (continued) Message Definition Probable Causes Reset failed Disk reset operation failed. Improperly connected diskette/tape drive, harddisk drive interface cable, or power cable. Sector not found MS-DOS unable to Defective sectors on dis- locate sector on diskette kette or hard-disk drive. 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 operation failed Computer could not find Faulty diskette or hardparticular address mark disk drive. on disk. Shutdown failure Computer board chip faulty. Defective system board. Time-of-day Backup battery low. clock stopped Defective battery or faulty chip (defective system board). Time-of-day not set Time or date setting in System Setup program incorrect, or computer battery bad. Incorrect Time or Date settings or defective computer battery. Timer chip counter 2 failed Timer circuit on system Defective system board. board malfunctioning. Unexpected interrupt in protected mode Keyboard/mouse controller malfunctioning, or one or more DIMMs improperly seated. Improperly seated DIMMs or faulty keyboard/mouse controller chip (defective system board). Beep Codes and Error Messages 3-9

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Beep Codes and Error Messages
3-9
Reset failed
Disk reset operation
failed.
Improperly connected
diskette/tape drive, hard-
disk drive interface cable,
or power cable.
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
Computer could not find
particular address mark
on disk.
Faulty diskette or hard-
disk drive.
Shutdown
failure
Computer 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 computer
battery bad.
Incorrect Time or Date
settings or defective com-
puter 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).
Table 3-2.
System Error Messages
(continued)
Message
Definition
Probable Causes