Owners Manual

32
Menu Item Description
OS Watchdog Timer If your system stops responding, this watchdog timer aids in the
recovery of your operating system. When this field is set to Enabled, the
operating system is allowed to initialize the timer. When is the field is set
to Disabled (the default), the timer will have no eect on the system.
Memory Mapped I/O above 4
GB
Allows you to enable support for PCIe devices that require large
amounts of memory. By default, the option is set to Enabled.
Slot Disablement Allows you to enable or disable the available PCIe slots on your system.
The Slot Disablement feature controls the configuration of PCIe cards
installed in the specified slot. 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.
Serial Communication page
You can use the Serial Communication page to view the properties of the serial communication port.
To view the Serial Communication page, click System Setup Main Menu
→
System BIOS
→
Serial
Communication.
Menu Item Description
Serial Communication Selects serial communication devices (Serial Device 1 and Serial Device 2)
in the BIOS. BIOS console redirection can also be enabled and the port
address can be specified. By default, Serial Communication option is set
to Auto.
Serial Port Address Enables 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.
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. Therefore, 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.
External Serial Connector You can associate the External Serial Connector to Serial Device 1, Serial
Device 2, or the Remote Access Device using this field.
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.