Dell OptiPlex NX1 - Manual (Page 65)

Beep Codes and Error Messages 3-3
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System error messages typically are presented on the screen during the POST
but can occur any time an error is detected by the system. System messages
are very useful in troubleshooting the system. Some of these messages
require operator intervention to solve; others indicate fatal errors that must be
solved before the system will reboot.
Table 3-2 lists the system error messages that can occur and the probable
cause for each message.
4-3-4 Time-of-day clock stopped Bad battery or defective
system board
4-4-1 Serial-port test failure Faulty I/O chip (defective
system board)
4-4-2 Parallel-port test failure Faulty system board
4-4-3 Math coprocessor failure Faulty microprocessor chip or
system board
4-4-4 Cache test failure Defective microprocessor or
system board
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not found BIOS found faulty disk
sector or could not find
particular disk sector. Faulty diskette/tape drive
subsystem or hard-disk
drive subsystem (defec-
tive system board).
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
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).
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