General Description 2-19

SCSI Controller

The baseboard includes an embedded Adaptec AIC-7902, which contains two independent channels. You can enable or disable the SCSI controller in BIOS Setup. Both channels support 16-bit SE or LVD SCSI operations at the following speeds:

„Ultra320 (320 MB/sec)

„Ultra160 (160 MB/sec)

„Ultra 2 (80 MB/sec)

„Ultra Wide SE (40 MB/sec)

The baseboard provides active terminators, termination voltage, resettable fuses, and protection diodes for both SCSI channels. You can disable the onboard terminators in BIOS Setup.

Network Interface Controllers

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

The baseboard includes two network interface controllers (NICs):

„Intel 82550 NIC that supports 10Base-T and 100Base-TX networks

„Intel 82544 NIC that supports 10Base-T, 100Base-TX networks, and 1000BASE-T networks

The 82550 controller supports the following features:

„32-bit PCI

„Integrated IEEE 802.3 10Base-T and 100Base-TX 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 and 100 Mbps operation

„Low power +3.3 V device

„IP checksum off-loading

NIC 1 can be used as both a network interface and server management interface.

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NEC 140Rc-4 manual Scsi Controller, Network Interface Controllers