Table 17. Integrated Devices details (continued)
Option
Description
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
Disabled
.
Root Complex 0x00 LCLK Frequency
Sets the LCLK frequency for Bus address 0x00.
Root Complex 0x40 LCLK Frequency
Sets the LCLK frequency for Bus address 0x40.
Root Complex 0x80 LCLK Frequency
Sets the LCLK frequency for Bus address 0x80.
Root Complex 0xC0 LCLK Frequency
Sets the LCLK frequency for Bus address 0xC0.
PCIe Preferred IO Bus
When set to
Enabled
, you can provide the Bus address (in decimal) to choose
end device for preferred IO Bus. This option is set to
Disabled
by default.
Enhanced Preferred IO
When set to
Enabled
, the LCLK speed for the root complex where Preferred
IO is enabled will automatically be set to 600 MHz (effective 593 MHz).
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.
Internal SD Card Port
Enables or disables the internal SD card port of the Internal Dual SD Module
(IDSDM). This option is set to
On
by default.
Internal SD Card Redundancy
Configures the redundancy mode of the Internal Dual SD Module (IDSDM).
When set to
Mirror
Mode, data is 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
Mirror
by default.
Internal SD Primary Card
By default, the primary SD card is selected to be SD Card 1. If SD Card 1 is not
present, then the controller selects SD Card 2 to be the primary SD card. This
option is set to
SD Card 1
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 Limit
Controls where MMIO is mapped. The
1 TB
option is designed for specific
OS which cannot support MMIO over 1 TB. This option is set to
8 TB
by
default. The default option is the maximum address that the system supports
and recommended in most cases.
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.
14
Pre-operating system management applications
