SOM-3569 User Manual
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3.4.7
CSM Configuration
Figure 3.15 CSM Configuration
CSM Support
Enable/Disable CSM Support.
CSM16 Module Version
CSM16 Module Version
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.
Option ROM Messages
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, Storage, or
Video
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