Acrosser AR-B1894 - Manual (Page 45)

4.2.10 Load Optimized Defaults
Use this menu to load the BIOS default values that are factory settings for
optimal performance system operations. While Award has designed the custom
BIOS to maximize performance, the factory has the right to change these
defaults to meet their needs.
Press <Y> to load the default values setting for optimal performance system
operations.
4.2.11 Supervisor/User Password Setting
You can set either supervisor or user password, or both of them.
Supervisor Password: able to enter/change the options of setup menus