Kontron AM4022 uEFI BIOS - Manual (Page 33)

AM4022 uEFI BIOS Boot Setup
ID 1052-1333, Rev. 1.0 Page 27
3.1.7 Option ROM Messages
This function is used to control the messages of the loaded PCI option ROMs.
Default setting: Force BIOS
3.1.8 Interrupt 19 Capture
This function is used to specify if legacy PCI option ROMs are allowed to capture software in-
terrupt 19h.
Default setting: Enabled
3.1.9 CSM Support
This function is used to enable or disable CSM support.
Default setting: Enabled
3.2 Boot Option Priorities
3.2.1 Boot Option #1..2
These functions are used to form the boot order and are dynamically generated. They repre-
sent either a legacy BBS (BIOS Boot Specification) class of devices or a native EFI boot entry.
Press Return on each option to select the BBS class / EFI boot entry desired.
3.2.2 Hard Drive BBS Priorities
This function leads to a sub-menu that allows configuring the boot order for a specific device
class. These options are only visible if at least one device for this class is present. These func-
tions are dynamically generated.
SETTING DESCRIPTION
Force BIOS Use this setting to force to a BIOS-compatible output. This will show the option ROM mes-
sages.
Keep Current Use this setting to keep the current video mode. This will suppress option ROM messages.
Option ROMs requiring interactive inputs may not work properly in this mode.
SETTING DESCRIPTION
Disabled Use this setting to prevent legacy PCI option ROMs from capturing software interrupt 19h.
Enabled Use this setting to allow legacy PCI option ROMs to capture software interrupt 19h.
SETTING DESCRIPTION
Disabled Use this setting to disable CSM support.
Enabled Use this setting to enable CSM support.