Dell 5WC10 Installation And Service Manual page 53

Option Description
User Accessible Configures the user accessible USB ports. Selecting Only Back Ports On disables the front USB ports;
USB Ports selecting All Ports Off disables all front and back USB ports; selecting All Ports Off (Dynamic)
disables all front and back USB ports during POST and front ports can be enabled or disabled dynamically
by an authorized user or authorized users without resetting the system.
The USB keyboard and mouse function in certain USB ports during the boot process, depending on the
selection. After the boot process is complete, the USB ports will be enabled or disabled as per the setting.
Internal USB Enables or disables the internal USB port. This option is set to On or Off. This option is set to On by
Port default.
iDRAC Direct The iDRAC Direct USB port is managed by iDRAC exclusively with no host visibility. This option is set to
USB Port ON or OFF. When set to OFF, iDRAC does not detect any USB devices installed in this managed port.
This option is set to On by default.
Embedded NIC1 Enables or disables the OS interface of the embedded NIC1 and NIC2 Controller.
and NIC2
I/OAT DMA Enables or disables the I/O Acceleration Technology (I/OAT) option. I/OAT is a set of DMA features
Engine designed to accelerate network traffic and lower CPU utilization. Enable only if the hardware and
software support the feature.This option is set to Disabled by default.
I/O Snoop Selects the number of cycles PCI I/O can withhold snoop requests, from the CPU, to allow time to
HoldOff complete its own write to LLC. This setting can help improve performance on workloads where
Response throughput and latency are critical.
Embedded Video Enables or disables the use of Embedded Video Controller as the primary display. When set to Enabled,
Controller the Embedded Video Controller is used as 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 pre-boot environment. The
embedded video is disabled before the operating system boots. This option is set to Enabled by default.
Current State of Displays the current state of the embedded video controller. The Current State of Embedded Video
Embedded Video Controller option is a read-only field. If the Embedded Video Controller is the only display capability in the
Controller 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 Enabled.
SR-IOV Global Enables or disables the BIOS configuration of Single Root I/O Virtualization (SR-IOV) devices. This option
Enable is set to Disabled by default.
OS Watchdog If your system stops responding, this watchdog timer aids in the recovery of your operating system. When
Timer this option is set to Enabled, the operating system initializes the timer. When this option is set to
Disabled (the default), the timer does not have any effect on the system.
Empty Slot Enables or disables the root ports of all the empty slots that are accessible to the BIOS and OS. This
Unhide option is set to Disabled by default.
Memory Mapped Enables or disables the support for the PCIe devices that need large amounts of memory. Enable this
I/O above 4 GB option only for 64-bit operating systems. This option is set to Enabled by default.
Memory Mapped When set to 12 TB, the system maps the MMIO base to 12 TB. Enable this option for an OS that requires
I/O Base 44 bit PCIe addressing. When set to 512 GB, the system maps the MMIO base to 512 GB, and reduces
the maximum support for memory to less than 512 GB. Enable this option only for the 4 GPU DGMA issue.
This option is set to 56 TB by default.
Slot Disablement Enables or disables the available PCIe slots on your system. The slot disablement feature controls the
configuration of the PCIe cards installed in the specified slot. Slots must be disabled only when the
NOTE: The Internal SD Card Port on the PCIe riser is controlled by Internal USB Port.
NOTE: If set to Disabled (OS), the embedded NICs may still be available for shared network access
by the embedded management controller. This function must be configured via the NIC management
utilities provided with your system.
NOTE: The LOM (Broadcom 57416) is compatible with 10GBASE-T IEEE 802.3an and 1000 BASE-T
IEEE 802.3ab.
NOTE: When there are multiple add-in graphic cards installed in the system, the first card discovered
during PCI enumeration is selected as the primary video. You might have to re-arrange the cards in
the slots in order to control which card is the primary video.
Pre-operating system management applications 53