Dell VxRail VD-4510c Manual page 22

Configure integrated devices
1. To view the Integrated Devices screen, power on the system, and press F2.
2. Click System Setup Main Menu > System BIOS > Integrated Devices.
3. Use the following table to configure integrated devices:
Option
User Accessible USB
Ports
Internal USB Port
iDRAC Direct USB Port
I/OAT DMA Engine
Embedded Video
Controller
Embedded NIC1, NIC2,
NIC3 and NIC4
I/O Snoop HoldOff
Response
Current State of
Embedded Video
Controller
SR-IOV Global Enable
22 Pre-operating system management applications
Description
Configures the user accessible USB ports.
● Only Back Ports On disables the front USB ports.
● All Ports Off disables all front and back USB ports.
● Only Back Ports On disables the front USB ports.
● All Ports Off (Dynamic) disables all front and back USB ports during POST.
● All Ports On (default) enables all front and back USB ports.
● Enable Front Ports Only: Enables or disables the front USB ports during the operating
system runtime.
When user accessible USB ports are set to All Ports Off (Dynamic) the Enable Front
Ports Only option is enabled.
The USB keyboard and mouse still function in certain USB ports during the boot process,
depending on the selection. After the boot process is complete, the USB ports are enabled or
disabled as per the setting.
Enables or disables the internal USB port. This option is set to On (default) or Off.
The Internal USB port is on the PCIe riser 1b. The internal USB port is only supported for
T150.
The iDRAC Direct USB port is managed by iDRAC with no host visibility. This option is set to
ON (default) or OFF. When set to OFF, iDRAC does not detect any USB devices that are
installed in this managed port.
Enables or disables (default) the I/O Acceleration Technology (I/OAT) option. I/OAT is a set
of DMA features designed to accelerate network traffic and lower CPU use. Enable only if
the hardware and software support the feature.
Enables (default) or disables the use of Embedded Video Controller as the primary display.
When set to Enabled, the Embedded Video Controller will be the primary display even if
add-in graphic cards are installed. When set to Disabled, an add-in graphics card is used
as the primary display. BIOS will output displays to both the primary add-in video and the
embedded video during POST and preboot environment. The embedded video is disabled
before the operating system boots.
When there are multiple add-in graphic cards that are installed in the system, the first card
that is discovered during PCI enumeration is selected as the primary video. You might have to
rearrange the cards in the slots in order to control which card is the primary video.
Enables (default) or disables the operating system interface of the embedded NIC1, NIC2,
NIC3, and NIC4 controller.
NOTE: If set to Disabled, the embedded NICs may still be available for shared network
access by the embedded management controller. This function must be configured using
the NIC management utilities that are provided with your system.
Selects the number of cycles PCI I/O can withhold snoop requests, from the CPU, to
allow time to complete its own write to LLC. This setting can help improve performance
on workloads where throughput and latency are critical. This option is set to 2K Cycles by
default.
Displays the current state of the embedded video controller. The Current State of
Embedded Video Controller option is a read-only field. If the Embedded Video Controller
is the only display capability in the system (that is, no add-in graphics card is installed),
then the Embedded Video Controller is automatically used as the primary display even if the
Embedded Video Controller setting is set to Disabled.
Enables or disables (default) the BIOS configuration of Single Root I/O Virtualization (SR-
IOV) devices.