Dell OptiPlex GX620 - Manual (Page 56)

The computer should have changed the value of System Memory to reflect the newly installed memory. Verify the new total. If it is correct, skip to
step 9 .
8. If the memory total is incorrect, turn off and disconnect your computer and devices from their electrical outlets. Open the computer cover and check the
installed memory modules to ensure that they are seated properly in their sockets. Then repeat steps
5 , 6 , and 7 .
9. When the System Memory total is correct, press <Esc> to exit system setup.
10. Run the Dell Diagnostics to verify that the memory modules are operating properly.
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