bootup message

Forum discussion tagged with bootup message.
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    Question Bootup alert message (Dell Precision T3500)

    I have had Precision T3500 for about 10 years. About 5 years ago, system properties began reading out total memory 8GB (I bought it with 12GB RAM), so I removed the defective module and left everything else untouched. Since then the machine gives the following message every time I boot it up...