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Codes and Messages 3-5
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Table 3-2 lists (in alphabetical order) system messages that can appear on the
monitor screen. These messages can help you find the source of a problem.
Some of these messages indicate fatal errors. When a fatal error occurs, the
system cannot usually be rebooted until an appropriate hardware change has
been made.
Address mark
not found
Faulty diskette drive
subsystem or hard-
disk drive sub-
system (defective
system board)
Replace the system
board.
Attachment
failed to
respond
Diskette drive or
hard-disk drive
controller cannot
send data to associ-
ated drive
Replace the drive’s
interface cable.
Auxiliary
device
failure
Mouse cable con-
nector loose or
improperly
connected,
defective mouse
Check the mouse cable
connection. If the prob-
lem persists, replace the
mouse.
Data error Faulty diskette, dis-
kette drive, or hard-
disk drive
Replace the diskette, dis-
kette drive, or hard-disk
drive.
Decreasing
available
memory
Faulty or improperly
seated DIMM,
DIMMs not installed
in sets of four, or a
faulty or improperly
seated memory
module
Be sure that the DIMMs
are installed in sets of
four and in the proper
sockets for each mem-
ory bank in use. If this
does not resolve the
problem, remove and
reseat the DIMMs or the
memory module. If the
problem persists,
replace the DIMMs or
the memory module.