Dell EMC NX430 System Owner's Manual page 38

Option Description
Current State of Displays the current state of the embedded video controller. The Current State of Embedded Video Controller
Embedded Video option is a read-only field. If the Embedded Video Controller is the only display capability in the system (that is, no
Controller 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.
OS Watchdog If your system stops responding, this watchdog timer aids in the recovery of your operating system. When this
Timer 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 Enables or disables the support for PCIe devices that need large amounts of memory. This option is set to Enabled
I/O above 4 GB by default.
Slot Disablement Enables or disables the available PCIe slots on your system. The slot disablement feature controls the configuration
of 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.
Serial Communication
You can use the Serial Communication screen to view the properties of the serial communication port.
Viewing Serial Communication
To view the Serial Communication screen, perform the following steps:
1 Turn on, or restart your system.
2 Press F2 immediately after you see the following message:
F2 = System Setup
NOTE: If your operating system begins to load before you press F2, wait for the system to finish booting, and then
restart your system and try again.
3 On the System Setup Main Menu screen, click System BIOS.
4 On the System BIOS screen, click Serial Communication.
Serial Communication details
The Serial Communication screen details are explained as follows:
Option Description
Serial
Selects serial communication devices (Serial Device 1 and Serial Device 2) in BIOS. BIOS console redirection can
Communication
also be enabled and the port address can be specified. This option is set to Auto by default.
Serial Port Address Enables you to set the port address for serial devices. This option is set to Serial Device 1=COM2, Serial Device
2=COM1 by default.
External Serial Enables you to associate the External Serial Connector to Serial Device 1, Serial Device 2, or the Remote Access
Connector Device by using this option.
38 Pre-operating system management applications
NOTE: You can use only Serial Device 2 for the Serial Over LAN (SOL) feature. To use console
redirection by SOL, configure the same port address for console redirection and the serial device.
NOTE: Every time the system boots, the BIOS syncs the serial MUX setting saved in iDRAC. The serial
MUX setting can independently be changed in iDRAC. Loading the BIOS default settings from within the
BIOS setup utility may not always revert the serial MUX setting to the default setting of Serial Device 1.
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.