1.3Motherboard overview

Before you install the NR-LSR motherboard, familiarize yourself with its physical configuration and available features to facilitate the motherboard installation and future upgrades. A sufficient knowledge of the motherboard specifications will also help you avoid mistakes that may damage the board and its components.

1.3.1 Major components

The following are the major components of the NR-LSR motherboard as pointed out in the picture on page 1-7.

1.Intel® 82550PM Fast Ethernet controller

2.Intel® 82544GC Gigabit Ethernet controller

3.ATI Rage-XL VGA controller

4.DDR DIMM sockets

5.ServerWorks® Grand Champion LE North Bridge (CMIC-LE)

6.ServerWorks® 64-bit I/O Bridge (CIOB-X2)

7.5-switch DIP (CLKSW)

8.CPU Socket 478

9.24/20-pin ATX power connector

10.Backplane bridge board connectors

11.Flash ROM

12.8-switch DIP (U78)

13.ServerWorks® Champion South Bridge (CSB5)

14.Server Management daughterboard connectors

15.LPC super I/O controller

16.ASUS ASIC

17.LSI® SCSI controller

18.Ultra-160 SCSI connector (internal)

19.PCI extended power connector

20.64-bit 133/100MHz PCI slot

21.PS/2 mouse port

22.PS/2 keyboard port

23.RJ-45 port (100/10 Mbps)

24.RJ-45 port (1000/100/10 Mbps)

25.Serial port

26.RJ-45 port (for server management)

27.VGA port

28.SCSI LED

29.High-density SCSI connector

30.USB 1.1 ports

31.Location switch

32.Location LED

See page 1-8 for the specifications of each component. Refer to Chapter 2 for detailed information on the components.

1-6

Chapter 1: Product introduction