Vecow EMBC-2000 User Manual page 49

4.3.8 CSM Configuration
Figure 4-3-8 : CSM Settings
CSM Support
Enable/Disable CSM support.
GateA20 Active
UPON REQUEST - GA20 can be disabled using BIOS services. ALWAYS - do
not allow disabling 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.
©Vecow EMBC-2000 User Manual BIOS SETUP 43