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Device and I/O ports

This menu displays onboard devices and I/O port options.
Note
Settings in this menu vary with models and configurations.
ItemOperationDescription
Active Video

  • Onboard Device

  • Add-in Device

Selectable option.

This setting only applies if the server has an add-in video adapter. When the option ROM is set to Legacy for both onboard and add-in video adapters, the Active Video setting controls which single adapter will display the System Setup utility.

Note
This setting does not affect how the OS chooses to display its graphical desktop. The system boot early video is displayed at the onboard video only, and the management controller remote console shows the onboard video only.
PCI 64-Bit Resource Allocation

  • Enable

  • Disable

  • Auto

Selectable option.

Press [Enter] to enable or disable the allocation of 64-bit resources for PCI.

Auto is the default setting, would allocate some resources below 4GB for legacy compatibility.

IOMMU

  • Enable

  • Disable

  • Auto

Selectable option.

Press [Enter] to enable or disable Input/Output Memory Management Unit (IOMMU).

Auto is the default setting, would allow the system to flexibly enable or disable IOMMU by decision.

SRIOVs

  • Enable

  • Disable

Selectable option.

Press [Enter] to enable or disable the support of resource allocation for Single Root I/O Virtualization (SR-IOV) virtual functions during boot.

Enable is the default setting.

PCIe Ten Bit Tag Support

  • Disabled

  • Enabled

Provides information on enabling the PCIe Ten Bit tag for improved performance. Enable the PCIe Ten Bit Tag to increase the number of non posted requests from 256 to 768 for better performance. As latency increases, the increase in unique tags is required to maintain the peak performance at 16 GT/s.

Enable/Disable Onboard Device(s) 

Sub menu.

Press [Enter] to enable or disable onboard devices or slots.

Enable/Disable Adapter Option ROM Support 

Sub menu.

Press [Enter] to control Legacy and UEFI-compliant adapter support.

Disabling UEFI/Legacy support may adversely affect pre-boot/boot functions.

Set Option ROM Execution Order 

Sub menu.

Press [Enter] to control legacy ROM load order.

PCIe Gen Speed Selection 

Sub menu.

Press [Enter] to choose the generation speed for available PCIe slots.

Override Slot Bifurcation 

Sub menu.

Press [Enter] to override the slot bifurcation setting of the physical x16 slot to support the adapter with multiple devices.

Console Redirection Settings 

Sub menu.

Press [Enter] to configure console redirection and COM port settings.

USB Configuration 

Sub menu.

Press [Enter] to enable or disable USB storage devices or individual ports.