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BIOS Setup
ET870 Series
User’s Manual
43
4
4.4.10 CSM Configuration
BIOS Setting
Description
CSM Support
Enables / Disables CSM support.
GateA20 Active
•
The option Upon Request disables GA20 when
using BIOS services.
•
The option Always cannot disable GA20, but is
useful when any RT code is executed above 1 MB.
INT19 Trap
Response
Selects the way that BIOS reacts on INT19 trapping 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.
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.
Содержание ET870 Series
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