Serial Communications Screen - Dell PowerEdge R420xr Owner's Manual

Menu Item Description
Internal SD Card If set to Mirror mode, data is written on both SD cards. If any one of the SD card
Redundancy fails, data is written to the active SD card. Data from this card is copied to the
replacement SD card at the next boot. By default, Internal SD Card Redundancy
option is set to Mirror.
Integrated Allows you to enable or disable the integrated network card 1. By default, the
Network Card 1 Integrated Network Card 1 option is set to Enabled.
OS Watchdog Allows you to enable or disable the OS watchdog timer. When this field is enabled,
Timer the operating system initializes the timer and the OS watchdog timer helps in
recovering the operating system. By default, the OS Watchdog Timer option is set
to Disabled.
Embedded Video Allows you to enable or disable the Embedded Video Controller. By default, the
Controller embedded video controller is Enabled.
SR-IOV Global Allows you to enable or disable the BIOS configuration of Single Root I/O
Enable Virtualization (SR-IOV) devices. By default, the SR-IOV Global Enable option is set
to Disabled.
Slot Disablement Allows you to enable or disable available PCIe slots on your system. The Slot
Disablement feature controls the configuration of PCIe cards installed in the
specified slot.
Memory Mapped Allows you to enable support for PCIe devices that require large amounts of
I/O above 4 GB memory. By default, the option is set to Enabled.

Serial Communications Screen

Menu Item Description
Serial Allows you to select serial communication devices (Serial Device 1 and Serial
Communication Device 2) in the BIOS. BIOS console redirection can also be enabled and the port
address used can be specified. By default, Serial Communication option is set to
On without Console Redirection.
Serial Port Address Allows you to set the port address for serial devices. By default, the Serial Port
Address option is set to Serial Device 1=COM2, Serial Device 2=COM1.
External Serial Allows you to associate the external serial connector to serial device 1, serial device
Connector 2, or remote access device. By default, the External Serial Connector option is set
to Serial Device1.
22
NOTE: This option is displayed only if IDSDM is installed on the system board.
CAUTION: Slot disablement must be used only when the installed peripheral
card is preventing booting into the Operating System or causing delays in
system startup. If the slot is disabled, both the Option ROM and UEFI driver
are disabled.
NOTE: Only Serial Device 2 can be used for Serial Over LAN (SOL). To use
console redirection by SOL, configure the same port address for console
redirection and the serial device.