![background image](http://html1.mh-extra.com/html/ibase-technology/mbd301/mbd301_user-manual_605016051.webp)
BIOS Setup
MBD301
User’s Manual
43
4
4.4.8
CSM Configuration
BIOS Setting
Description
CSM Support
Enable / disable CSM support.
GateA20 Active
•
UPON REQUEST - GA20 can be disabled using
BIOS services.
•
ALWAYS
– do not allow disabling GA20; this
option is useful when any RT code is executed
above 1 MB.
INT19 Trap
Response
BIOS reaction on INT19 trapping by Option ROM:
•
IMMEDIATE - executes the trap right away.
•
POSTPONED - executes the trap during legacy
boot.
HDD Connection
Order
Some OS require HDD handles to be adjusted, i.e.
OS is installed on drive 80h.
Options: Adjust, Keep
Boot option filter
Controls the priority of Legacy / UEFI ROMs.
Options: UEFI and Legacy, Legacy only, UEFI only
Network
Controls the execution of UEFI and Legacy Network
OpROM.
Options: Do not launch, UEFI, Legacy
Summary of Contents for MBD301
Page 8: ...viii MBD301 User s Manual This page is intentionally left blank ...
Page 13: ...General Information MBD301 User s Manual 5 1 1 6 Block Diagram ...
Page 16: ...8 MBD301 User s Manual This page is intentionally left blank ...
Page 42: ...34 MBD301 User s Manual ...
Page 49: ...BIOS Setup MBD301 User s Manual 41 4 4 4 6 CPU Configuration 4 4 7 USB Configuration ...