Advantech ARK-2250V User Manual page 51

3.2.2.14 CSM Configuration
Feature
CSM Support
Gate A20 Active
INT19 Trap
Response
Boot Option Filter
Network
Option
Disable
Enable
Upon Request
Always
Immediate
Postponed
UEFI and Legacy
Legacy only
UEFI only
Do not launch
UEFI
Legacy
41
Description
Enable/Disable CSM support
'Upon Request' - Gate A20 can be
disabled with BIOS services.
'Always' - Gate A20 cannot be dis-
abled.
Note: This feature is useful if run-
time code above 1MB is executed.
Set BIOS reaction on INT19 trap-
ping by option
ROM:
'Immediate' - Executes the trap right
away.
'Postponed' - Executes the trap dur-
ing legacy boot.
This option controls Legacy/UEFI
ROMS priority
When you use Win10 IoT image,
please choose 'UEFI only'
Controls the execution of UEFI and
Legacy PXE
OpROM
When you use Win10 IoT image,
please choose 'UEFI'
ARK-2250V/2250S User Manual