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2013
congatec
AG
TU87m12
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11.6.1.1
CSM & Option ROM Control Submenu
Feature
Options
Description
Launch CSM
Enabled
Disabled
Controls the execution of the CSM module. Only disable for pure UEFI operating system support.
Boot Option Filter
UEFI and Legacy
Legacy Only
UEFI Only
Controls which devices / boot loaders the system should boot to.
PXE Option ROM Launch
Policy
Do Not Launch
UEFI ROM Only
Legacy ROM Only
Legacy ROM First
UEFI ROM First
Controls the execution of UEFI and legacy PXE option ROMs.
Storage Option ROM Launch
Policy
Do Not Launch
UEFI ROM Only
Legacy ROM Only
Legacy ROM First
UEFI ROM First
Controls the execution of UEFI and legacy mass storage device option ROMs.
Video Option ROM Launch
Policy
Do Not Launch
UEFI ROM Only
Legacy ROM Only
Legacy ROM First
UEFI ROM First
Controls the execution of UEFI and legacy video option ROMs.
Other Option ROM Launch
Policy
UEFI ROM Only
Legacy ROM Only
Controls the execution of option ROMs for PCI / PCI Express devices other than network, mass storage
or video.
GateA20 Active
Upon Request
Always
Gate A20 control.
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.
Option ROM Messages
Force BIOS
Keep Current
Set display mode for option ROMs.
INT19 Trap Response
Immediate
Postponed
BIOS reaction on INT19 trapping by Option ROM
Immediate: Execute the trap right away.
Postponed: Execute the trap during legacy boot.