170 IBM eX5 Implementation Guide
Serial Over LAN (SOL)
Active Energy Manager
Power/Reset control (power on, hard/soft shutdown, hard/soft reset, and schedule power
control)
4.11.2 Ethernet subsystem
The x3690 X5 has an embedded dual 10/100/1000 Ethernet controller. The BCM5709C is a
single-chip, high performance, multi-speed dual port Ethernet LAN controller. It contains two
standard IEEE 802.3 Ethernet media access controls (MACs), which can operate in either
full-duplex or half-duplex mode. Two direct memory access (DMA) engines maximize bus
throughput and minimize CPU overhead.
The system has the following features:
TCP off-load engine (TOE) acceleration
Shared PCIE interface across two internal Peripheral Component Interconnect (PCI)
functions with separate configuration space
Integrated dual 10/100/1000 MAC and PHY devices able to share the bus through
bridge-less arbitration
Comprehensive nonvolatile memory interface
IPMI-enabled
4.11.3 USB subsystem
The x3690 X5 contains six external USB 2.0 ports, two on the front of the server as shown in
Figure 4-2 on page 119, and four on the rear of the server, as shown in Figure 4-3 on
page 120 (rear).
The server also has two internal USB ports, located on riser card 2, as shown in Figure 4-50
on page 175. One of these internal ports is used for the integrated hypervisor key. The other
internal port is available.
See 4.13, “Integrated virtualization” on page 174 for more details about the location of the
internal USB ports and the placement of the internal hypervisor key.
4.11.4 Integrated Trusted Platform Module
The Integrated Winbond Trusted Platform Module (TPM) Version 1.2 (WPCT201BA0WG)
security chip performs cryptographic functions and stores private and public security keys. It
provides the hardware support for the Trusted Computing Group (TCG) specification. For
more information about the TCG specification, go to the following website:
http://www.trustedcomputinggroup.org/resources/tpm_main_specification
4.11.5 Light path diagnostics
Light path diagnostics is a system of LEDs used to indicate failed components or system
errors. When an error occurs, LEDs are lit on the light path diagnostics panel. Figure 4-47 on
page 171 shows the location of the light path diagnostics panel on the x3690 X5.
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