3.2.2.15
CSM Configuration
Compatibility Support Module Configuration
–
CSM Support
Enable/Disable CSM Support.
CSM16 Module Version
–
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.
–
Option ROM Message
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.
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 OpROM execution policy for devices other than Network, Stor-
age or Video.
AIMB-705 User Manual
Figure 3.23 CSM Configuration
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