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Option
Description
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.
Embedded Video
Enables or disables the use of Embedded Video Controller as the primary display. When set to Enabled, the
Controller
Embedded Video Controller will be the primary display even if add-in graphic cards are installed. When set to
Disabled, an add-in graphics card will be 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 will then be
disabled right 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 Enabled.
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 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.
Slot Disablement
Enables or disables the available PCIe slots on your system. The slot disablement feature controls the
configuration of the 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. Only slots that are present on the system will be
available for control.
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:
Steps
1. Power on, or restart your system.
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.
Table 4. Slot Disablement
Option
Slot 1
Slot 2
Slot 3
Slot 4
PowerEdge T340 Pre-operating system management applications
Description
Enables or disables or only the boot driver is disabled
for the PCIe slot 1. This option is set to Enabled by
default.
Enables or disables or only the boot driver is disabled
for the PCIe slot 2. This option is set to Enabled by
default.
Enables or disables or only the boot driver is disabled
for the PCIe slot 3. This option is set to Enabled by
default.
Enables or disables or only the boot driver is disabled
for the PCIe slot 4. This option is set to Enabled by
default.
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