Intel SE7221BK1-E manual Video Controller, Network Interface Controller NIC, Pci-E

SE7221BK1-E Technical Product Specification

5.1.4PCI-E x8

In this board, Lanes 0~7 are connected to a x8 PCI-E connector directly. It can support x1, x4, x 8 PCI-E add-in cards.

Table 12. PCI-E x 8 Connections

Lane

Lane 0~7

Device

Slot 6 (PCI Express* x 8)

5.2Video Controller

The Intel® E7221 GMCH includes an integrated graphics engine that supports standard SVGA drivers with analog display capabilities. 8 MB of memory is pre-allocated in the main memory to support the internal graphical device when less than 4 GB of physical memory is installed.

However, when the maximum of 4 GB of memory is installed, onboard system resources such as video consume a considerable amount of memory, leaving just above 3 GB of available memory for the operating system. Details of this issue have been communicated via the Technical Advisory TA_719-01which can be found at: http://support.intel.com/support/motherboards/server/SE7221BK1-E.

The baseboard provides a standard 15-pin VGA connector at the rear of the system, in the standard ATX I/O opening area. The video controller is disabled by default in BIOS Setup when an off-board video adapter is detected in either the PCI-E or PCI slots.

5.3Network Interface Controller (NIC)

The Intel® Server Board SE7221BK1-E supports two 10Base-T/100Base/1000Base-T (82541PI controller) network interfaces. One is through ICH6R directly, and another one is through PXH (SE7221BK1LX sku only).

The Intel® 82541PI Gigabit Ethernet is a single, compact component with an integrated Gigabit Ethernet Media Access Control (MAC) and physical layer (PHY) functions. For desktop, workstation and mobile PC Network designs with critical space constraints, the Intel® 82541PI allows for a Gigabit Ethernet implementation in a very small area that is footprint compatible with current generation 10/100 Mbps Fast Ethernet designs. The Intel® 82541PI integrates fourth generation gigabit MAC design with fully integrated, physical layer circuitry to provide a standard IEEE 802.3 Ethernet interface for 1000BASE-T, 100BASE_TX, and 10BASE-T applications (802.3, 802.3u, and 802.3ab). The controller is capable of transmitting and receiving data at rates of 1000 Mbps, 100 Mbps, or 10 Mbps. In addition to managing MAC and PHY layer functions, the controller provides a 32-bit wide direct Peripheral Component Interconnect (PCI) 2.3 compliant interface capable of operating at 33 or 66MHz.

5.3.1NIC Connector and Status LEDs

The NICs drive two LEDs located on each network interface connector.

For the NIC 1 connector, the green LED indicates network connection when on, and Transmit/Receive activity when blinking. The yellow LED indicates 1000-Mbps operation when lit, the green LED indicates 100-Mbps operation when lit and 10-Mbps when off.

17