Dell PowerEdge R6525 EMC Installation and Service Manual - Page 33

Table 28. Integrated Devices details (continued) Option Description 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 PCIe Preferred IO Bus Enhanced Preferred IO SR-IOV Global Enable Internal SD Card Port 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. When set to Enabled, you can provide the Bus address (in decimal) to choose end device for preferred IO Bus. This option is set to Disabled by default. When set to Enabled, the LCLK speed for the root complex where Preferred IO is enabled will automatically be set to 600 MHz (effective 593 MHz). 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 SD card port of the Internal Dual SD Module (IDSDM). This option is set to On by default. Internal SD Card Redundancy Configures the redundancy mode of the Internal Dual SD Module (IDSDM). When set to Mirror Mode, data is written on both SD 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 SD card is visible to the OS. This option is set to Mirror by default. Internal SD Primary Card OS Watchdog Timer Memory Mapped I/O Limit Slot Disablement By default, the primary SD card is selected to be SD Card 1. If SD Card 1 is not present, then the controller selects SD Card 2 to be the primary SD card. This option is set to SD Card 1 by default. 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. Controls where MMIO is mapped. The 1 TB option is designed for specific OS which cannot support MMIO over 1 TB. This option is set to 8 TB by default. The default option is the maximum address that the system supports and recommended in most cases. 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. Slot n: Enables or disables or only the boot driver is disabled for the PCIe slot n. This option is set to Enabled by default. Slot Bifurcation Slot Discovery Bifurcation Settings allows Platform Default Bifurcation and Manual bifurcation Control. Pre-operating system management applications 33