2-20 General Description

Network Controller

NOTE: To ensure EMC product regulation compliance, the system must be used with a shielded LAN cable.

The mother board uses a dual-channel Ethernet Controller and supports 10Base-T/100Base- TX/1000Base-T network subsystems.

The network controller supports the following features:

„64-bit, 100 MHz PCI-X interface

„Integrated IEEE 802.3 10Base-T, 100Base-TX, and 1000Base-T compatible PHY

„IEEE 820.3u auto-negotiation support

„Chained memory structure similar to the 82559, 82558, 82557 and 82596

„Full duplex support at both 10 Mbps, 100 Mbps, and 1000 Mbps operation

„Low power +3.3 V device

On the system board, NIC 1 can be used as both a network interface and server management interface.

Keyboard and Mouse

The keyboard/mouse controller is PS/2-compatible. A Y-cable can be used if both a PS/2 mouse and keyboard are required at the same time.

ACPI

The mother board supports the Advanced Configuration and Power Interface (ACPI) as defined by the ACPI 2.0 specifications. An ACPI aware operating system can put the system into a state where the hard drives spin down, the system fans stop, and all processing is halted. However, the power supply will still be on and the processors will still be dissipating some power, so the power supply fans will still run.

The system board supports sleep states s0, s1, s4, and s5:

„s0: Normal running state.

„s1: Processor sleep state. No context will be lost in this state and the processor caches will maintain coherency.

„s4: Hibernate or Save to Disk: The memory and machine state are saved to disk. Pressing the power button or other wakeup event will restore the system state from the disk and resume normal operation. This assumes that no hardware changes have been made to the system while it was off.

„s5: Soft off: Only the RTC section of the CSB and the BMC are running in this state. No context is saved by the OS or hardware.

IMPORTANT: The system is off only when the AC power cord is disconnected.