USER MANUAL
CHAPTER 5
BIOS SETUP
- 65 -
BIOS Setting
Description
Setting
Option
Effect
CSM Support
The Compatibility Support
Module (CSM) is a
component of the UEFI
firmware that provides
legacy BIOS compatibility by
emulating a BIOS
environment, allowing legacy
operating systems and some
option ROMs that do not
support UEFI to still be used.
Enabled/
Disabled
Enable or disable
the Compatibility
Support Module
GetaA20 Active
Activate GetaA20
Upon
Request
Enable or disable
this function
Option ROM
Messages
Receiving ROM Messages
Settings
Force BIOS
Set ROM messages
parameters
Network
Specifies which Network
option ROM is booted
UEFI
Only UEFI option
ROMs are booted
Legacy
Storage
Specifies which Storage
option ROM is booted
UEFI
Only UEFI option
ROMs are booted
Legacy
Only Legacy option
ROMs are booted
Video
Specifies which Video option
ROM is booted
UEFI
Only UEFI option
ROMs are booted
Legacy
Only Legacy option
ROMs are booted
Other PCI
Devices
Specifies which option ROM
is booted for devices other
than the network, storage or
video
UEFI
Only UEFI option
ROMs are booted
Legacy
Only Legacy option
ROMs are booted