Kontron AM4020 uEFI BIOS - Manual (Page 29)

AM4020 uEFI BIOS Boot Setup
ID 1036-5670, Rev. 3.0 Page 23
P R E L I M I N A R Y
3.1.7 GateA20 Active
This function is used to enable or disable GateA20.
Default setting: Upon Request
3.1.8 Option ROM Messages
This function is used to control the messages of the loaded PCI option ROMs.
Default setting: Force BIOS
3.1.9 Interrupt 19 Capture
This function is used to specify if legacy PCI option ROMs are allowed to capture software in-
terrupt 19h.
Default setting: Disabled
SETTING DESCRIPTION
Upon Request Use this setting to disable GateA20 in the uEFI BIOS.
Always Use this setting to prevent the system from disabling GateA20.
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.