Supermicro B13SEG Owner's Manual page 83

VGA Priority
Use this feature to select the graphics device to be used as the primary video display for
system boot. The options are Onboard and Offboard.
For the following features, note that:
Note 1: The number of slots and slot naming vary based on your motherboard.
Note 2: The Legacy option is available when "Boot Mode Select" is set to Dual or
Legacy.
Note 3: Refer to Boot submenu in BIOS Setup main menu to set "Boot Mode Select."
Onboard Video Option ROM
Select EFI to allow you to boot the computer using the Extensible Firmware Interface (EFI)
device installed on the onboard video port. The options are Disabled, EFI, and Legacy.
NVMe PCIe 5.0 x4
Select EFI to allow you to boot the computer using the EFI device installed on the PCIe slot
specified. The options are Disabled, Legacy, and EFI.
Onboard LAN1 Option ROM
Select EFI to allow you to boot the computer using the EFI device installed on the PCIe slot
specified. The options are Disabled, Legacy, and EFI.
Onboard LAN2 Option ROM
Select EFI to allow you to boot the computer using the EFI device installed on the PCIe slot
specified. The options are Disabled, Legacy, and EFI.
ACPI Settings

NUMA
Use this feature to enable Non-Uniform Memory Access (NUMA) to enhance system
performance. The options are Disabled and Enabled.
UMA-Based Clustering
When the feature is set to Hemisphere, Uniform Memory Access (UMA)-based clustering
will support 2-cluster configuration for system performance enhancement. The options are
Disabled (All2All), Hemisphere (2-clusters), and Quadrant (4-clusters).
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Chapter 4: UEFI BIOS