Advantech PCA-6751 series Manual page 43

Typematic Delay (msec)
When holding down a key, the Typematic Delay is the time interval
between the appearance of the first and second characters. The input
values (msec) for this category are: 250, 500, 750, 1000.
Security Option
This setting determines whether the system will boot if the password
is denied, while limiting access to Setup.
Note: To disable security, select PASSWORD SETTING in
the main menu. At this point, you will be asked to
enter a password. Simply press 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.
Chapter 3 Award BIOS Setup 33