BIOS Setup
IOPS-302 User Manual
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4
4.4.6
CSM Configuration
BIOS Setting
Description
CSM Support
Enables or disables CSM support.
GateA20 Active
•
Upon Request disables GA20 when using BIOS
services.
•
Always cannot disable GA20, but is useful when
any RT code is executed above 1 MB.
Option ROM
Messages
Sets the display mode for Option ROM.
Options: Force BIOS, Keep Current
INT19 Trap
Response
Sets how BIOS reacts on INT19 trap by Option
ROM.
•
Immediate executes the trap right away.
•
Postponed executes the trap during legacy boot.
Boot option filter
Controls the priority of Legacy and UEFI ROMs.
Network
Controls the execution of UEFI and Legacy PXE
OpROM. Options: Do not launch, Legacy
Storage
Controls the execution of UEFI and Legacy Storage
OpROM.
Options: Do not launch, UEFI, Legacy
Video
Controls the execution of UEFI and Legacy Video
OpROM.
Options: Do not launch, UEFI, Legacy
Other PCI devices
Determines OpROM execution policy for devices
other than network, storage or video.
Options: Do not launch, UEFI, Legacy