Dell XC Core XC760 Installation And Service Manual

Table 21. Integrated Devices details (continued)Option DescriptionSlot Disablement Enables or disables the available PCIe slots on your system. The slot disablementfeature controls the configuration of the PCIe cards that are installed in the specifiedslot. Slots must be disabled only when the installed peripheral card prevents bootinginto 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 thesystem are available for control. When this option is set to boot driver disabled, boththe Option ROM and UEFI driver from the slot do not run during POST. The systemdoes not boot from the card, and the preboot services are not available. However, thecard is available to the operating system.Slot n: Enables or disables or only the boot driver is disabled for the PCIe slot n. Thisoption is set to Enabled by default.Slot Bifurcation Auto Discovery Bifurcation Settings allows Platform Default Bifurcation, AutoDiscovery of Bifurcation, and Manual bifurcation Control.This option is set to Platform Default Bifurcation by default. The slot bifurcationfield is accessible when set to Manual bifurcation Control and is unavailable whenset to Platform Default Bifurcation and Auto Discovery of Bifurcation.NOTE: The slot bifurcation supports on PCIe slot only, does not support slot typefrom Paddle card to Riser and Slimline connector to Riser.Table 22. Integrated Devices detailsOption DescriptionUser Accessible USB Ports Configures the user accessible USB ports. Selecting Only Back Ports On disablesthe front USB ports; selecting All Ports Off disables all front and back USB ports.Selecting Only Back Ports On disables the front USB ports; selecting All Ports Offdisables all front and back USB ports; selecting All Ports Off (Dynamic) disables allfront and back USB ports during POST. Selecting All Ports Off disables all front andback USB ports; selecting All Ports Off (Dynamic) disables all front and back USBports during POST. Selecting All Ports Off disables all front and back USB ports. Thedefault value is All Ports On.When user accessible USB ports are set to All Ports Off (Dynamic), the EnableFront Ports Only option is enabled.Enable Front Ports Only enables or disables the front USB ports during theoperating system runtime.The USB keyboard and mouse still function in certain USB ports during the bootprocess, depending on the selection.After the boot process is complete, the USB ports will be enabled or disabled as perthe setting.Internal USB Port Enables or disables the internal USB port. This option is set to On or Off. The defaultvalue is On.The Internal USB port is on the PCIe riser 1b.Internal USB port is only effective for T150, but T350/R350/R250 are not becausehardware does not support.iDRAC Direct USB Port iDRAC manages the iDRAC Direct USB port exclusively with no host visibility. Thisoption is set to ON or OFF. When set to OFF, iDRAC does not detect any USBdevices that are installed in this managed port. The default value is On.I/OAT DMA Engine Enables or disables the I/O Acceleration Technology (I/OAT) option. I/OAT includesDMA features designed to accelerate network traffic and lower CPU utilization. Enableonly if the hardware and software support the feature. The default value is Disabled.Embedded Video Controller Enables or disables the use of Embedded Video Controller as the primary display. Whenset to Enabled, the Embedded Video Controller is the primary display even if add-ingraphic cards are installed. When set to Disabled, an add-in graphics card is usedas the primary display. BIOS output appears on both the primary add-in video andPre-operating system management applications 33