Asus P5LD2 SE - Manual (Page 100)

4-40 Chapter 4: BIOS setup
Exit & Discard Changes
Select this option only if you do not want to save the changes that you
made to the Setup program. If you made changes to fields other than
System Date, System Time, and Password, the BIOS asks for a confirmation
before exiting.
Discard Changes
Allows you to discard the selections you made and restore the previously
saved values. After selecting this option, a confirmation appears. Select OK
to discard any changes and load the previously saved values.
Load Setup Defaults
Allows you to load the default values for each of the parameters on
the Setup menus. When you select this option or if you press , a
confirmation window appears. Select OK to load the default values. Select
Exit & Save Changes or make other changes before saving the values to
the non-volatile RAM.