Advantech ARK-2230, User Manual, Page: 43 / 60

31 ARK-2230 User Manual
Chapter 3
B
IOS Settings
3.4.9 CSM Configuration
 CSM Support
 Enable/Disable CSM Support.
 GateA20 Active
 UPON REQUEST - GA20 can be disabled using BIOS services. We suggest
you do not disable GA20 as this option is useful when any RT code is executed
above 1MB.
 Option ROM Messages
Set display mode for Option ROM.
 INT19 Trap Response
BIOS reaction on INT19 trapping by Option ROM: IMMEDIATE - execute the
trap right away; POSTPONED - execute the trap during legacy boot.
 Boot option filter
This option controls Legacy/UEFI ROMs priority.
 Network
Controls the execution of UEFI and Legacy PXE OpROM.
 Storage
Controls the execution of UEFI and Legacy Storage OpROM.
 Video
Controls the execution of UEFI and Legacy Video OpROM.
 Other PCI devices
Determines OpROM execution policy for devices other than Network, Storage,
or Video.