Owners Manual

Option Description
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 will be enabled or disabled as per the
setting.
Internal USB
Port
Enables or disables the internal USB port. This option is set to On or Off. This option is set to On by
default.
iDRAC Direct
USB Port
The iDRAC Direct USB port is managed by iDRAC exclusively with no host visibility. This option is set to
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.
Integrated RAID
Controller
Enables or disables the integrated RAID controller. This option is set to Enabled by default.
Integrated
Network Card 1
Enables or disables the integrated network card (NDC). When set to Disabled, the NDC is not available
to the operating system (OS). This option is set to Enable by default.
NOTE: If set to Disabled (OS), the Integrated NICs might still be available for shared network
access by iDRAC.
I/OAT DMA
Engine
Enables or disables the I/O Acceleration Technology (I/OAT) option. I/OAT is a set of DMA features
designed to accelerate network traffic and lower CPU utilization. Enable only if the hardware and
software support the feature.
Embedded Video
Controller
Enables 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 will be 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 will then be disabled right before the operating system boots. This option is set to
Enabled by default.
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.
Current State of
Embedded Video
Controller
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 Enabled.
SR-IOV Global
Enable
Enables or disables the BIOS configuration of Single Root I/O Virtualization (SR-IOV) devices. This option
is set to Disabled by default.
OS Watchdog
Timer
If your system stops responding, this watchdog timer aids in the recovery of your operating system. When
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.
Memory Mapped
I/O above 4 GB
Enables or disables the support for the PCIe devices that require large amount of memory. Enable this
option only for 64-bit operating systems. This option is set to Enabled by default.
Memory Mapped
I/O above Base
When set to 12 TB, the system maps the MMIO base to 12 TB. Enable this option for an OS that requires
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. 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
installed peripheral card prevents booting into the operating system or causes delays in system startup. If
the slot is disabled,the Option ROM drivers are disabled. Only slots that are present on the system will be
available for control.
● Slot 1 — Enables or disables the PCIe slot 1. This option is set to Enabled by default.
● Slot 2 — Enables or disables or only the boot driver is disabled for the PCIe slot 2. This option is set
to Enabled by default.
● Slot 3 — Enables or disables or only the boot driver is disabled for the PCIe slot 3. This option is set
to Enabled by default.
● Slot 4 — Enables or disables or only the boot driver is disabled for the PCIe slot 4. This option is set
to Enabled by default.
Pre-operating system management applications 37