Dell EMC PowerEdge C6420 Manuel de référence - Page 16
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Option
Description
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.
Timer
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.
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 MMIO base to 12 TB. MMIO base default is 56 TB. The default value
I/O Base
must not be changed, unless addressing a known issue. Enable this feature for an OS that requires 44 bit
PCIe addressing.
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 are available for control.
16
Pre-operating system management applications
NOTE:
When there are multiple add-in graphic cards that are 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.
Table 3. Slot Disablement
Option
Slot 1
Slot 3
Slot 4
Slot 5
Description
Enables or disables or only the boot driver is
disabled for 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.