64 Using the System Setup Program and UEFI Boot ManagerIntegrated Devices ScreenOption DescriptionIntegrated SAS/RAIDController(Enabled default)Enables or disables the integrated storage controller.User Accessible USBPorts(All Ports On default)Enables or disables the user-accessible USB ports. Optionsare All Ports On, Only Back Ports On, and All Ports Off.Internal USB Port(On default)Enables or disables the internal USB port.Embedded NIC1 andNIC2Enables or disables the OS interface of the four embeddedNICs. (The NICs may also be accessed through thesystem’s management controller.)Embedded Gb NICx(NIC1 default: Enabledwith PXE;Other NICs: Enabled)Enables or disables the embedded NICs. Options areEnabled, Enabled with PXE, and Enabled with iSCSIBoot. PXE support allows the system to boot from thenetwork.MAC Address Displays the MAC address for the NIC.Capability Detected Displays the features of the NIC hardware key, if installed.NOTE: Some NIC features may require the installation of anadditional driver.OS Watchdog Timer(Disabled default)Sets a timer to monitor the operating system for activity,and aids in recovery if the system stops responding. WhenEnabled, the operating system is allowed to initialize thetimer. When Disabled, the timer is not initialized.NOTE: This feature is usable only with operating systemsthat support WDAT implementations of the AdvancedConfiguration and Power Interface (ACPI) 3.0b specification.I/OAT DMA Engine(Disabled default)Enables or disables the I/O acceleration technology(I/OAT). This feature should only be enabled if thehardware and software support I/OAT.Embedded VideoController(Enabled default)Displays the total amount of video memory available inthe embedded video controller.