Dell OptiPlex E1 - Manual (Page 14)

For a few options (as noted in the help area) the changes take effect immediately.
Exits the System Setup program at the System Setup screen if no settings in any option were changed.
Provides exit menu options if changes were made. Highlight a menu option to select it and press to
activate it.
Save Changes and Exit option exits the System Setup program and reboots the system, implementing
any changes you have made.
Discard Changes and Exit option exits the System Setup program without rebooting the system and
returns the system to its previous state - the boot routine.
Return to Setup option returns to the System Setup screen.
Resets the selected options to their default settings.
Displays help information for the selected option.
Figure 2-1. System-Setup Screen
System Setup Categories
The following subsections explain in detail each of the categories on the System Setup screen.
System Time