Acrosser AR-B1894 - Manual (Page 47)

4.2.12 Exit Selection
Save CMOS value changes to CMOS and exit setup. Enter <Y> to store the
selection made in the menus in CMOS, a special section in memory that stays on
after turning the system off. The BIOS configures the system according to the
Setup selection stored in CMOS when boot the computer next time. The system
is restarted after saving the values.
Abandon all CMOS value changes and exit setup, and the system is restarted
after exiting