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Option ROM Messages [Force BIOS]
This item allows you to set the display mode for Option ROM.
Configuration options: [Force BIOS] [Keep Current]
INT19 Trap Response [Immediate]
[Immediate]
[Postponed]
Above 4G Decoding [Disabled]
This item allows you to decode the 64-bit capable devices above 4G address space. Ensure
that your system supports 64-bit PCI decoding.
Configuration options: [Disabled] [Enabled]
CSM (Compatibility Support Module)
This item allows you to configure the CSM (Compatibility Support Module) items to fully
support the various VGA, bootable devices and add-on devices for better compatibility.
Launch CSM [Enabled]
[Auto]
[Enabled]
[Disabled]
The following items appear only when you set the Launch CSM to [Enabled].
4-50
Executes the trap for INT19 immediately.
Executes the trap during legacy boot.
The system automatically detects the bootable devices and the add-
on devices.
For better compatibility, enable the CSM to fully support the non-UEFI
driver add-on devices or the Windows
Disables the CSM to fully support the non-UEFI driver add-on devices
or the Windows
®
Boot Device Control [UEFI and Legacy OpROM]
This item allows you to select the type of devices that you want to boot.
Configuration options: [UEFI and Legacy OpROM] [Legacy OpROM only]
[UEFI only]
Boot from Network Devices [Legacy OpROM first]
This item allows you to select the type of network devices that you want to
launch.
Configuration options: [Legacy only] [UEFI driver first] [Ignore]
Boot from Storage Devices [Legacy OpROM first]
This item allows you to select the type of storage devices that you want to
launch.
Configuration options: [Legacy only] [UEFI driver first] [Ignore]
Boot from PCI-E/PCI Expansion Devices [Legacy OpROM first]
This item allows you to select the type of PCIe/PCI expansion devices that
you want to launch.
Configuration options: [Legacy only] [UEFI driver first]
®
UEFI mode.
UEFI mode.
Chapter 4: BIOS Setup
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