Advantech ARK-2250R, User Manual, Page: 43 / 72

33 ARK-2250R User Manual
Chapter 3
B
IOS settings
3.2.2.12 CSM Configuration
Feature Option Description
CSM Support
Disable
Enable Enable/Disable CSM support
Gate A20 Active
Upon Request
Always
'Upon Request' - Gate A20 can be disabled
with BIOS services.
'Always' - Gate A20 cannot be disabled.
Note: This feature is useful if runtime code
above 1MB is executed.
Option ROM
Messages Force BIOS
Keep Current
Set display mode for Option ROM
INT19 Trap
Response
Immediate
Postponed
Set BIOS reaction on INT19 trapping by option
ROM:
'Immediate' - Executes the trap right away.
'Postponed' - Executes the trap during legacy
boot.
Boot option filter
UEFI and Legacy
Legacy only
UEFI only
This option controls Legacy/UEFI ROMS prior-
ity
When you use Win10 IoT image, please
choose 'UEFI only'
Network
Do not launch
UEFI
Legacy
Controls the execution of UEFI and Legacy
PXE OpROM
When you use Win10 IoT image, please
choose 'UEFI'
Storage
Do not launch
UEFI
Legacy
Controls the execution of UEFI and Legacy
Storage OpROM
When you use Win10 IoT image, please
choose 'UEFI'