Save & Exit Setup - Aaeon SBC-556/L Manual

Save & exit setup
If you select this option and press <Enter>, the values entered in
the setup utilities will be recorded in the chipset's CMOS
memory. The microprocessor will check this every time you turn
on your system on and compare this to what it finds as it checks
the system. This record is required for the system to operate.
74 SBC-556/L User Manual