Advantech SOM-6898, User Manual

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37 SOM-6898 User Manual
Chapter 3
B
IOS Operation
3.1.2.10 CSM Configuration
Figure 3.22 CSM Configuration
 CSM Support
Enable/Disable CSM support.
 GateA20 Active
UPON Request- GA20 can be disabled using BIOS services. Do not allow dis-
abling GA20; this option is useful when any RT code is executed above 1MB.

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.