Asus A7V600 - Manual (Page 66)

2-30 Chapter 2: BIOS Information
Discard Changes
This option allows you to discard the selections you made and restore the
previously saved values. After selecting this option, a confirmation appears. Select
[Yes] to discard any changes and load the previously saved values.
Save Changes
This option saves your selections without exiting the Setup program. You can then
return to other menus and make further changes. After you select this option, a
confirmation window appears. Select [Yes] to save any changes to the non-volatile
RAM.