Owners Manual

Option Description
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 above 4 GB
Enables or disables the support for PCIe devices that need large amounts of
memory. This option is set to Enabled 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 details
The Serial Communication screen details are explained as follows:
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.
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.
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.
External Serial
Connector
Enables you to associate the External Serial Connector to Serial Device 1, Serial
Device 2, or the Remote Access Device by using this option.
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.
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 this setting to the default setting of Serial Device 1.
Failsafe Baud Rate Specifies the failsafe baud rate for console redirection. The BIOS attempts to
determine the baud rate automatically. This failsafe baud rate is used only if the
attempt fails, and the value must not be changed. This option is set to 115200 by
default.
Remote Terminal
Type
Sets the remote console terminal type. This option is set to VT 100/VT 220 by
default.
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