Option
Description
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
.
PCIe Preferred IO Device
When set to
Enabled
, you can provide the Bus/device/function address (in decimal)
to choose end device for preferred IO device. This option is set to
Disabled
by
default.
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.
Slot n
: Enables or disables or only the boot driver is disabled for the PCIe slot n. This
option is set to
Enabled
by default.
Slot Bifurcation
Auto Discovery Bifurcation Settings
allows
Platform Default 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
.
Serial Communication
To view the
Serial Communication
screen, power on the system, press F2, and click
System Setup Main Menu
>
System BIOS
>
Serial Communication
.
NOTE:
The serial port is optional for the PowerEdge R6525 system. The Serial Communication option is applicable only
if the serial COM port is installed in the system.
Table 27. Serial Communication details
Option
Description
Serial Communication
Selects serial communication devices (Serial Device 1 and Serial Device 2) in BIOS.
BIOS console redirection can also be enabled, and the port address can be specified.
This option is set to
Auto
by default.
Pre-operating system management applications
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