| Message |
Definition |
Probable Causes |
| Address mark not found |
BIOS found faulty disk sector or
could not find particular disk sector. |
Faulty diskette/tape drive
subsystem or hard-disk drive subsystem (defective system board). |
| Alert! Cover was previously removed |
Chassis intrusion alert. |
The cover was removed. Message is informational. |
| Attachment failed to respond |
Diskette drive or hard-disk
drive controller cannot send data to associated drive. |
Faulty interface cable or
connector. |
| Bad command or file name |
Command entered does not exist
or is not in pathname specified. |
Bad command. |
| Bad error-correction code (ECC) on
disk read |
Diskette drive or hard-disk
drive controller detected uncorrectable read error. Indicates a fatal error. |
Faulty diskette/tape drive
subsystem or hard-disk drive subsystem (defective system board). |
| Controller has failed |
Hard-disk drive or associated
controller defective. Indicates a fatal error. |
Faulty diskette/tape drive
subsystem or hard-disk drive subsystem (defective system board). |
| Data error |
System received unrecoverable
data-read error from diskette or hard-disk drive. Indicates a fatal error. |
Faulty diskette, diskette drive,
or hard-disk drive. |
| Decreasing available memory |
Read/write failure during POST
prevents system from using available memory. |
Faulty or improperly seated
DIMM(s). |
Diskette drive 0 seek failure
Diskette drive 1 seek failure |
Diskette/tape drive controller
could not locate specific sector or track. |
Faulty or improperly inserted
diskette, incorrect configuration settings in System Setup program, loose diskette/tape
drive interface cable, or loose power cable. |
| Diskette read failure |
Failure occurred while system
attempted to read diskette. |
Faulty diskette, faulty or
improperly connected diskette/tape drive interface cable, or loose power cable. |
| Diskette subsystem reset failed |
System could not successfully
issue reset command to diskette controller. |
Faulty diskette/tape drive
controller (defective system board). |
| Diskette write protected |
Diskette write-protect feature
activated. |
Diskette write-protected. |
| Drive not ready |
Diskette missing from or
improperly inserted in diskette drive. |
Defective, unformatted, or
improperly inserted diskette. |
| Gate A20 failure |
Gate A20 of the keyboard
controller malfunctioned. Indicates a fatal error. |
Faulty keyboard controller
(defective system board). |
| General failure |
Operating system cannot execute
command. |
Operating system corrupted or
not installed properly. |
Hard disk controller failure
Hard disk drive read failure
Hard disk failure |
Hard-disk drive failed to
initialize. Indicates a fatal error. |
Incorrect configuration settings
in System Setup program, improperly connected hard-disk drive cable, faulty hard-disk
drive controller subsystem (defective system board), or loose power cable. |
| Invalid configuration information -
please run SETUP program |
System Setup program contains
incorrect system configuration settings. |
Incorrect configuration settings
in System Setup program or faulty battery. |
Keyboard clock line failure
Keyboard failure |
System cannot communicate with
keyboard. Indicates a fatal error. |
Loose or improperly connected
keyboard cable connector, defective keyboard, or defective keyboard/mouse controller
(defective system board). |
| Keyboard controller failure |
Keyboard/mouse controller
failed. Indicates a fatal error. |
Defective keyboard/mouse
controller (defective system board). |
| Keyboard data line failure Keyboard stuck key failure |
System cannot communicate with
keyboard. Indicates a fatal error. |
Loose or improperly connected
keyboard cable connector, defective keyboard, or defective keyboard/mouse controller
(defective system board). |
| Memory address line failure at address,
read value expecting value Memory
data line failure at address, read value expecting value
Memory double word logic failure at address, read value
expecting value
Memory odd/even logic failure at address, read value
expecting value
Memory write/read failure at address, read value
expecting value |
During memory test, value
read at address was incorrect. |
Faulty or improperly seated
DIMMs or defective system board. |
| Memory allocation error |
Software in use conflicts with
operating system, application, or utility. |
Faulty application or utility. |
| No boot device available |
System does not recognize
diskette drive or hard-disk drive from which it is trying to boot. |
Faulty diskette, diskette/tape
drive subsystem, hard-disk drive, hard-disk drive subsystem; or no boot disk in drive A. |
| No boot sector on hard-disk drive |
Configuration settings in System
Setup program incorrect, or operating system corrupted. |
Incorrect configuration settings
in System Setup program, or no operating system on hard-disk drive. |
| No timer tick interrupt |
Timer on system board
malfunctioning. Indicates a fatal error. |
Defective system board. |
| Non-system disk or disk error |
Diskette in drive A or hard-disk
drive does not have bootable operating system installed on it. |
Faulty diskette, diskette/tape
drive subsystem, or hard-disk drive subsystem. |
| Not a boot diskette |
No operating system on diskette.
|
No operating system on diskette. |
| Plug and Play Configuration Error |
System encountered problem in
trying to configure one or more expansion cards. |
System resource conflict. |
Read fault
Requested sector not found |
MS-DOS� cannot read from
diskette or hard-disk drive.
System could not find particular sector on disk, or requested sector defective. |
Faulty diskette, diskette/tape
drive subsystem, or hard-disk drive subsystem (defective system board). |
| 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 diskette 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 |
System could not find particular
address mark on disk. |
Faulty diskette or hard-disk
drive. |
| Shutdown failure |
System board chip faulty.
Indicates a fatal error. |
Defective system board. |
| Time-of-day clock stopped |
System battery low. |
Defective battery or faulty chip
(defective system board). |
| Time-of-day not set |
Time or Date setting in System
Setup program incorrect, or system battery bad. |
Incorrect Time or Date settings,
or defective system battery. |
| Timer chip counter 2 failed |
Timer circuit on system board
malfunctioning. Indicates a fatal error. |
Defective system board. |
| Unexpected interrupt in protected
mode |
Keyboard/mouse controller
malfunctioning, or one or more DIMMs improperly seated. Indicates a fatal error. |
Improperly seated DIMMs or
faulty keyboard/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. |
