Advantech SIMB-354 User Manual page 60

3.2.2.12 Compatibility Support Module Configuration
CSM Support

This item allows users to enable or disable CSM support.
GateA20 Active

Upon request - GA20 can be disabled using BIOS services. Never allow dis-
abling of GA20; this option is useful when any RT code is executed above 1MB.
INT19 Trap Response

This item allows users to set the BIOS reaction to INT19 trapping by Option
ROM: "Immediate" - execute the trap right away; "postponed" - execute the trap
during legacy boot.
Boot Options Filter

This item allows users to control the Legacy/UEFI ROM priority.
Option ROM Execution

– 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 the OpROM execution policy for devices other than network,
storage, and/or video devices.
51 SIMB-354 User Manual