Serial Communications Screen - Dell PowerEdge R520 Owner's Manual

Menu Item Description
Internal SD Card Port Enables or disables the system's internal SD card port. By default, Internal SD Card Port option
is set to On.
Internal SD Card If set to Mirror mode, data is written on both SD cards. If any one of the SD card fails, data is
Redundancy 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 Network Allows you to enable or disable the integrated network card 1. By default, the Integrated
Card 1 Network Card 1 option is set to Enabled.
OS Watchdog Timer Allows you to enable or disable the OS watchdog timer. When this field is enabled, 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 embedded
Controller video controller is Enabled.
SR-IOV Global Enable Allows you to enable or disable the BIOS configuration of Single Root I/O 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 I/O Allows you to enable support for PCIe devices that require large amounts of memory. By
above 4 GB default, the option is set to Enabled.

Serial Communications Screen

Menu Item Description
Serial Communication Allows you to select serial communication devices (Serial Device 1 and Serial 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 2, or
Connector remote access device. By default, the External Serial Connector option is set to Serial Device1.
NOTE: This option is displayed only if IDSDM is installed on the system board.
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.
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