Advantech PCI-6771 series User Manual page 45

System The system will not boot, and access to Setup will be
denied if the correct password is not entered at the prompt.
Setup The system will boot, but access to Setup will be
denied if the correct password is not entered at the prompt.
Note: To disable security, select PASSWORD SETTING in the main
menu. At this point, you will be asked to enter a password. Simply hit
the <ENTER> key to disable security. When security is disabled, the
system will boot, and you can enter Setup freely.
OS Select for DRAM>64 MB
This setting is under OS/2 system.
Video BIOS Shadow
This determines whether video BIOS will be copied to RAM, which is
optional according to the chipset design. When enabled, Video
Shadow increases the video speed.
C8000 - CFFFF Shadow/DC000-DFFFF Shadow
These determine whether optional ROM will be copied to RAM in
blocks of 16 KB.
Enabled Optional shadow is enabled
Disabled Optional shadow is disabled
Chapter 3 Award BIOS Setup 37