Dell EMC PowerEdge R740 Installation And Service Manual page 53

Option Description
Current State of Displays the current state of the embedded video controller. The Current State of Embedded Video Controller
Embedded Video option is a read-only field. If the Embedded Video Controller is the only display capability in the system (that is, no
Controller 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.
SR-IOV Global Enables or disables the BIOS configuration of Single Root I/O Virtualization (SR-IOV) devices. This option is set to
Enable Disabled by default.
Internal SD Card Enables or disables the internal SD card port of the Internal Dual SD Module (IDSDM). This option is set to On by
Port default.
Internal SD Card Configures the redundancy mode of the Internal Dual SD Module (IDSDM). When set to Mirror Mode, data is
Redundancy written on both SD cards. After failure of either card and replacement of the failed card, the data of the active card
is copied to the offline card during the system boot.
When Internal SD Card Redundancy is set to Disabled, only the primary SD card is visible to the OS. This option is
set to Disabled by default.
Internal SD Primary When Redundancy is set to Disabled, either one of the SD card can be selected to present itself as mass storage
Card device by setting it to be primary card. By default primary SD card is selected to be SD Card 1. If SD Card 1 is not
present, then the controller will select SD Card 2 to be the primary SD card.
OS Watchdog If your system stops responding, this watchdog timer aids in the recovery of your operating system. When this
Timer 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 Enables or disables the support for the PCIe devices that need large amounts of memory. Enable this option only
I/O above 4 GB for 64-bit operating systems. This option is set to Enabled by default.
Memory Mapped When set to 12 TB, the system will map MMIO base to 12 TB. Enable this option for an OS that requires 44 bit
I/O above Base PCIe addressing. When set to 512 GB, the system will map MMIO base to 512 GB, and reduce 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 installed peripheral card
prevents booting into the operating system or causes delays in system startup. If the slot is disabled, both the
Option ROM and UEFI drivers are disabled. Only slots that are present on the system will be available for control.
Table 36. Slot Disablement
Option
Slot 1
Slot 3
Slot 4
Slot 5
Slot Bifurcation Allows Platform Default Bifurcation, Auto discovery of Bifurcation and Manual bifurcation Control. The default
is set to Platform Default Bifurcation. The slot bifurcation field is accessible when set to Manual bifurcation
Control and is grayed out when set to Platform Default Bifurcation or Auto discovery of Bifurcation.
Description
Enables or disables the PCIe slot 1. This option is set to
Enabled by default.
Enables or disables or only the boot driver is disabled
for the PCIe slot 3. This option is set to Enabled by
default.
Enables or disables or only the boot driver is disabled
for the PCIe slot 4. This option is set to Enabled by
default.
Enables or disables or only the boot driver is disabled
for the PCIe slot 5. This option is set to Enabled by
default.
Dell EMC PowerEdge R740 Installation and Service Manual
Pre-operating system management applications
53