Lanner electronic FW-6420 - Manual (Page 43)

3.12 Save & Exit Setup
Select this option and press the 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 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.