Csm & Option Rom Control Submenu - Congatec COM Express conga-TC87 User Manual

10.6.1.1 CSM & Option ROM Control Submenu
Feature
Launch CSM
Boot Option Filter
PXE Option ROM Launch
Policy
Storage Option ROM Launch
Policy
Video Option ROM Launch
Policy
Other Option ROM Launch
Policy
GateA20 Active
Option ROM Messages
INT19 Trap Response
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Options Description
Enabled Controls the execution of the CSM module. Only disable for pure UEFI operating system support.
Disabled
UEFI and Legacy Controls which devices / boot loaders the system should boot to.
Legacy Only
UEFI Only
Do Not Launch Controls the execution of UEFI and legacy PXE option ROMs.
UEFI ROM Only
Legacy ROM Only
Legacy ROM First
UEFI ROM First
Do Not Launch Controls the execution of UEFI and legacy mass storage device option ROMs.
UEFI ROM Only
Legacy ROM Only
Legacy ROM First
UEFI ROM First
Do Not Launch Controls the execution of UEFI and legacy video option ROMs.
UEFI ROM Only
Legacy ROM Only
Legacy ROM First
UEFI ROM First
UEFI ROM Only Controls the execution of option ROMs for PCI / PCI Express devices other than network, mass storage
Legacy ROM Only or video.
Upon Request Gate A20 control.
Always Upon Request: Gate A20 can be disabled using BIOS services.
Always: Do not allow disabling Gate A20
This option is useful when any runtime code is executed above 1MB.
Force BIOS Set display mode for option ROMs.
Keep Current
Immediate BIOS reaction on INT19 trapping by Option ROM
Postponed Immediate: Execute the trap right away.
Postponed: Execute the trap during legacy boot.
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