Lanner electronic FW-6420 - Manual (Page 43)

3.12 Save & Exit Setup
Select this option and press the <Enter> key to save the new setting information in the CMOS
memory and continue with the booting process.
Typing Y will allow you to quit the Setup Utility and save the user setup changes to RTC
CMOS.
Typing N will return to Setup Utility.
3.13 Exit Without Saving
Select this option and press the <Enter > key to exit the Setup Utility without recording any
new values or changing old ones.
Typing Y will allow you to quit the Setup Utility without saving any changes to RTC CMOS.
Typing N will return to the Setup Utility.