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Getting Started
6 Replace the back panel cover.
See Removing and Replacing the Back Panel Cover (page 22) for the procedure.
✍
To disconnect your computer completely from AC power, unplug the power cord when the computer is off.
Make sure that the AC outlets are easily accessible.
!
If you unplug the power cord from your computer while the computer is on or in Sleep mode, you may lose all unsaved data.