Dell Alienware M15x (Early 2011) - Manual (Page 117)

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CHAPTER 25: SYSTEM SETUP
Exit Menu
Exit Saving
Changes
Allows you to exit System Setup and save your changes
to CMOS.
Exit Discarding
Changes
Allows you to exit utility without saving Setup data to
CMOS.
Load Setup
Defaults
Allows you to load default values for all Setup items.
Discard Changes Allows you to load previous values from CMOS for all
Setup items.
Save Changes
Allows you to save Setup data to CMOS.