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SE7221BK1-E Technical Product Specification
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5.1.4 PCI-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 Device
Lane 0~7 Slot 6 (PCI Express* x 8)
5.2 Video 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_719-01 which 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.
5.3 Network 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.
5.3.1 NIC 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.