Asus Motherboard A8N-SLI Premium - Manual (Page 115)

ASUS A8N-SLI Premium 4-47
Load Setup Defaults
This option 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 <F5>, a confirmation window appears. Select Yes to load default
values. Select Exit & Save Changes or make other changes before saving
the values to the non-volatile RAM.
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.