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5-6 Sun Netra CP3220 Blade Server User’s Guide • January 2010
5.4.2 PCI Express Bus
PCI Express 1.0 (PCIe) is a high-speed, point-to-point dual simplex chip
interconnect. It is the latest extension of the PCI bus. PCI e operates at 2.5 GHz and
supports land widths of x1, x2, x4, x8, x16, and x32. Additional features include:
■ Serial point-to-point interconnect between two devices
■ Each lane supports two differential signal pairs, one pair for each data direction
■ 2.5-Gbyte/sec transfer rate
■ Scalable performance based on the number of lanes implemented per interconnect
5.4.3 Dual BIOS
The Sun Netra CP3220 blade server provides dual 1-Mbyte BIOS chips that support
redundant BIOS images for increased reliability. The default chip acts as the primary
BIOS chip and automatically selected for update during a firmware upgrade. The
secondary BIOS chip retains the original BIOS image, and can be used through
manual configuration if the primary BIOS is corrupt.
5.4.4 Trusted Platform Module (TPM)
The Sun Netra CP3220 blade server provides a Trusted Platform Module (TPM) chip,
which enables various security features, including hardware and software
authentication. This chip is reserved for future use on the Sun Netra CP3220 blade
server.
5.4.5 Broadcom 5715C Gigabit Ethernet
The Broadcom 5715C Gigabit Ethernet chip used on the Sun Netra CP3220 blade
server provides two 10/100/1000 MBASE-T interfaces to the Zone 2 connectors. It
incorporates the media access control (MAC) and physical (PHY) layer functions for
the two LANs used as the ATCA base fabric.