USB Enhanced and Integrated Ethernet Service Manual
3-4 Dell OptiPlex GX
pro
 Systems Service Manual
Table 3-2. System Error Messages
Message Definition Probable Causes
Address mark 
not found
Attachment 
failed to 
respond
BIOS found faulty disk 
sector or could not find 
particular disk sector.
Diskette drive or hard-
disk drive controller 
cannot send data to 
associated drive.
Faulty diskette/tape drive 
subsystem or hard-disk 
drive subsystem (defec-
tive system board). Faulty 
interface cable or connec-
tor.
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
Controller 
has failed
Diskette drive or hard-
disk drive controller 
detected uncorrectable 
read error.
Hard-disk drive or 
associated controller 
defective.
Faulty diskette/tape drive 
subsystem or hard-disk 
drive subsystem (defec-
tive system board).
Data error System received un-
recoverable data-read 
error from diskette or 
hard-disk drive.
Faulty diskette, diskette 
drive, or hard-disk drive.
Decreasing 
available mem-
ory
Read/write failure 
during POST prevents 
system from using 
available memory.
One or more DIMMs 
faulty or improperly 
seated.
Diskette 
drive 0 seek 
failure
Diskette 
drive 1 seek 
failure
Diskette/tape drive con-
troller could not locate 
specific sector or track.
Faulty or improperly 
inserted diskette, 
incorrect settings in Sys-
tem 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 inter-
face cable, or loose power 
cable.










