Csm Configuration - Advantech ITA-5831 Series User Manual

4.4.8

CSM Configuration

CSM Support

This item allows users to enable/disable CSM support. The default setting is
"enabled".
 GateA20 Active
This item is useful when the RT code is executed above 1 MB. When this is set
as "upon request", GA20 can be disabled in the BIOS utility. When set as
"always", GA20 cannot be disabled.
 Option ROM Messages
This item allows users to set the display mode for the option ROM.
 INT19 Trap Response
This item allows users to set the BIOS reaction to INT19 trapping by the option
ROM. With the "Immediate" option, the trap is executed immediately; with "post-
poned," the trap is executed during legacy boot.
 Boot Option Filter
This item allows users to set the legacy/UEFI ROM priority.
 Network
This item allows users to control the execution of UEFI and legacy PXE OpRom.
 Storage
This item allows users to control the execution of UEFI and legacy storage
OpRom.
Video

This item allows users to control the execution of UEFI and legacy video
OpRom.
 Other PCI Devices
This item allows users to determine the OpRom execution policy for other
devices.
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