Asus X99-E WS User Manual page 128

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]
Setup Mode [EZ Mode]
[Advanced Mode] This item allows you to go to Advanced Mode of the BIOS after POST.
[EZ Mode]
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].
3-56
Executes the trap for INT19 immediately.
Executes the trap during legacy boot.
This item allows you to go to EZ Mode of the BIOS after POST.
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 UEFI mode.
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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 OpROM first] [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: [Both, Legacy OpROM first] [Both, UEFI first]
[Legacy OpROM first] [UEFI driver first] [Ignore]
UEFI mode.
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Chapter 3: BIOS setup