Dell OptiPlex 5040 Small Form Factor Owner's Manual page 37

System message
NOTICE - Hard Drive SELF MONITORING
SYSTEM has reported that a parameter
has exceeded its normal operating
range. Dell recommends that you back up
your data regularly. A parameter out of
range may or may not indicate a
potential hard drive problem
Description
S.M.A.R.T error, possible hard disk drive failure.
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