Supermicro X11DDW-L/NT User Manual page 105

Chapter 4: UEFI BIOS
M.2 PCI-E 3.0 X4 OPROM
Select EFI to allow the user to boot the computer using an EFI (Extensible Firmware Interface)
device installed on the M.2 slot specified by the user. Select Legacy to allow the user to boot
the computer using a legacy device installed on the M.2 slot specified by the user. The options
are Disabled, Legacy, and EFI.
CPU1 AOM PCI-E 3.0 X16 OPROM
Select EFI to allow the user to boot the computer using an EFI (Extensible Firmware Interface)
device installed on the AOM(Add-On-Module) PCI-E 3.0 X16 slot specified by the user. Select
Legacy to allow the user to boot the computer using a legacy device installed on the AOM
slot specified by the user. The options are Disabled, Legacy, and EFI.
Bus Master Enable
If this setting is set to Enabled, the PCI Bus Driver will enable the Bus Master Attribute for
DMA transactions. If this setting is set to Disabled, the PCI Bus Driver will disable the Bus
Master Attribute for Pre-Boot DMA protection. The options are Disabled and Enabled.
Onboard LAN Device
Select Enable to use onboard LAN devices. The options are Disabled and Enabled.
Onboard LAN1 Option ROM
Use this feature to select the type of device installed in LAN Port1, which will be used for
system boot. The options are Legacy, EFI, and Disabled.
Onboard LAN2 Option ROM
Use this feature to select the type of device installed in LAN Port2, which will be used for
system boot. The options are Legacy, EFI, and Disabled.
Onboard NVMe1~4 Option ROM
Select EFI to allow the user to boot the computer using an EFI (Extensible Firmware Interface)
device installed on the NVME connector specified by the user. Select Legacy to allow the
user to boot the computer using a legacy device installed on the NVME connector specified
by the user. The options are Disabled, Legacy, and EFI.
Onboard Video OPROM (Option ROM)
Use this feature to select the Onboard Video Option ROM type. The options are Disabled,
Legacy, and EFI.
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