Dell PowerEdge R740xd2 EMC Installation and Service Manual - Page 32

Option User Accessible USB Ports Description Configures the user accessible USB ports. Selecting Only Back Ports On disables the front USB ports; selecting All Ports Off disables all front and back USB ports; The USB keyboard and mouse still function in certain USB ports during the boot process, depending on the selection. After the boot process is complete, the USB ports will be enabled or disabled as per the setting. Internal USB Port Enables or disables the internal USB port. This option is set to On or Off. This option is set to On by default. 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. Integrated RAID Controller Enables or disables the integrated RAID controller. This option is set to Enabled by default. Embedded NIC1 and NIC2 NOTE: The Embedded NIC1 and NIC2 options are only available on systems that do not have Integrated Network Card 1. Enables or disables the Embedded NIC1 and NIC2 options. If set to Disabled, the NIC may still be available for shared network access by the embedded management controller. The embedded NIC1 and NIC2 options are only available on systems that do not have Network Daughter Cards (NDCs). The Embedded NIC1 and NIC2 option is mutually exclusive with the Integrated Network Card 1 option. Configure the Embedded NIC1 and NIC2 option by using the NIC management utilities of the system. I/OAT DMA Engine Enables or disables the I/O Acceleration Technology (I/OAT) option. I/OAT is a set of DMA features designed to 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. I/O SnoopHoldOff Selects the number of cycles PCI I/O can withhold snoop requests from the CPU to allow time to complete its Response own write to LLC. This setting can help improve performance on workloads where throughput and latency are critical. Embedded Video Controller Enables or disables the use of Embedded Video Controller as the primary display. When set to Enabled, the 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. 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. Current State of Embedded Video Controller SR-IOV Global Enable Internal MicroSD Card Port Internal MicroSD Card Redundancy Displays the current state of the embedded video controller. The Current State of Embedded Video Controller option is a read-only field. If the Embedded Video Controller is the only display capability in the system (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. Enables or disables the BIOS configuration of Single Root I/O Virtualization (SR-IOV) devices. This option is set to Disabled by default. Enables or disables the internal MicroSD card port of the Internal Dual SD Module (IDSDM). This option is set to On by default. Configures the redundancy mode of the Internal Dual SD Module (IDSDM). When set to Mirror Mode, data is written on both MicroSD cards. After failure of either card and replacement of the failed card, the data of the active card is copied to the offline card during the system boot. When Internal SD Card Redundancy is set to Disabled, only the primary MicroSD card is visible to the OS. This option is set to Disabled by default. Internal microSD Primary Card OS Watchdog Timer When Redundancy is set to Disabled, either one of the MicroSD card can be selected to present itself as mass storage device by setting it to be primary card. By default primary MicroSD card is selected to be SD Card 1. If MicroSD Card 1 is not present, then the controller will select MicroSD Card 2 to be the primary MicroSD card. 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. 32 Pre-operating system management applications