Dell E56S Series Installation And Service Manual page 26

Integrated Devices
You can use the Integrated Devices screen to view and configure the settings of all integrated devices including the video controller,
integrated RAID controller, and the USB ports.
Viewing Integrated Devices
To view the Integrated Devices screen, perform the following steps:
Steps
1. Power 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 Integrated Devices.
Integrated Devices details
About this task
The Integrated Devices screen details are explained as follows:
Option Description
iDRAC Direct USB The iDRAC Direct USB port is managed by iDRAC exclusively with no host visibility. This option is set to ON or
Port OFF. When set to OFF, iDRAC does not detect any USB devices installed in this managed port. This option is set
to On by default.
I/OAT DMA Enables or disables the I/O Acceleration Technology (I/OAT) option. I/OAT is a set of DMA features designed to
Engine accelerate network traffic and lower CPU utilization. Enable only if the hardware and software support the
feature.This option is set to Disabled by default.
Embedded Video Enables or disables the use of Embedded Video Controller as the primary display. When set to Enabled, the
Controller Embedded Video Controller is used as the primary display even if add-in graphic cards are installed. When set to
Disabled, an add-in graphics card is used as the primary display. BIOS will output displays to both the primary
add-in video and the embedded video during POST and pre-boot environment. The embedded video is disabled
before the operating system boots. This option is set to Enabled by default.
Current State of Displays the current state of the embedded video controller. The Current State of Embedded Video
Embedded Video Controller option is a read-only field. If the Embedded Video Controller is the only display capability in the system
Controller (that is, no 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.
SR-IOV Global Enables or disables the BIOS configuration of Single Root I/O Virtualization (SR-IOV) devices. This option is set to
Enable Disabled by default.
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.
Empty Slot Unhide Enables or disables the root ports of all the empty slots that are accessible to the BIOS and OS. This option is set
to Enabled by default.
Memory Mapped Enables or disables the support for the PCIe devices that need large amounts of memory. Enable this option only
I/O above 4 GB for 64-bit operating systems. This option is set to Enabled by default.
26 Pre-operating system management applications
NOTE: When there are multiple add-in graphic cards installed in the system, the first card
discovered during PCI enumeration is selected as the primary video. You might have to re-arrange
the cards in the slots in order to control which card is the primary video.