Owners Manual

Option Description
USB 3.0 Setting Enables or disables the USB 3.0 support. Enable this option only if your operating system supports USB
3.0. If you disable this option, devices operate at USB 2.0 speed. USB 3.0 is enabled by default.
User Accessible
USB Ports
Enables or disables the USB ports. Selecting Only Back Ports On disables the front USB ports, selecting
All Ports Off disables all USB ports. The USB keyboard and mouse operate during boot process in certain
operating systems. After the boot process is complete, the USB keyboard and mouse do not work if the
ports are disabled.
NOTE: Selecting Only Back Ports On and All Ports Off disables the USB management port and
also restricts access to iDRAC features.
Internal USB
Port
Enables or disables the internal USB port. This option is set to Enabled by default.
Integrated RAID
Controller
Enables or disables the integrated RAID controller. This option is set to Enabled by default.
Integrated
Network Card 1
Enables or disables the integrated network card.
I/OAT DMA
Engine
Enables or disables the I/OAT option. Enable only if the hardware and software support the feature.
Embedded Video
Controller
Enables or disables the Embedded Video Controller option. This option is set to Enabled by default.
SR-IOV Global
Enable
Enables or disables the BIOS configuration of Single Root I/O Virtualization (SR-IOV) devices. This option
is set to Disabled by default.
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.
Mezzanine Slot
Disablement
The Slot Disablement feature controls the configuration of mezzanine cards installed in the specified
slots. Only mezzanine card slots that are present on your system are available for control.
Related references
Integrated Devices on page 42
Related tasks
Viewing Integrated Devices on page 42
Serial Communication
You can use the Serial Communication screen to view the properties of the serial communication port.
Related references
System BIOS on page 26
Related tasks
Serial Communication details on page 44
Viewing Serial Communication on page 43
Viewing Serial Communication
To view the Serial Communication screen, perform the following steps:
1. Turn on, or restart your system.
Pre-operating system management applications
43