1

2

3

4

5

6

7

8

9

10

11

12

13

14

ATX 12V connector. This power connector connects the 4-pin 12V plug from the ATX 12V power supply.

CPU socket. A 478-pin surface mount, Zero Insertion Force (ZIF) socket for the Intel® Pentium® 4 Processor, with 533/400 MHz system bus that allows 4.3GB/s and 3.2GB/s data transfer rates, respectively.

ATX power connector. This 20-pin connector connects to an ATX +12V power supply. The power supply must have at least 1A on the +5V standby lead (+5VSB).

North bridge controller. The SiS® 655 Memory Controller Hub (MCH) provides the processor interface with 533/400 MHz frequency, system memory interface at 333/266MHz operation, dual-channel memory architecture and 1.5V AGP interface that supports AGP 3.0 specification including 8X Fast Write protocol.

DDR DIMM sockets. These four 184-pin DIMM sockets support up to 4GB system memory using unbuffered non-ECC PC2700/2100/1600 DDR DIMMs.

IDE connectors. These dual-channel bus master IDE connectors support Ultra DMA133/100/66, PIO Modes 3 & 4 IDE devices. Both the primary (blue) and secondary (black) connectors are slotted to prevent incorrect insertion of the IDE ribbon cable.

AGP slot. This Accelerated Graphics Port (AGP) slot supports 1.5V AGP8X mode graphics cards for 3D graphical applications.

Standby power LED. This LED lights up if there is a standby power on the motherboard. This LED acts as a reminder to turn off the system power before plugging or unplugging devices.

South bridge controller. The SiS® 963L is a subsystem that integrates various I/O functions including 2-channel ATA133 bus master IDE controller, up to six USB 2.0/1.1 ports, I/O APIC, AC’97 2.2 interface, and PCI 2.2 interface.

Floppy disk connector. This connector accommodates the provided ribbon cable for the floppy disk drive. One side of the connector is slotted to prevent incorrect insertion of the floppy disk cable.

Super I/O controller. This Low Pin Count (LPC) interface provides the commonly used Super I/O functionality. The chipset supports a high- performance floppy disk controller for a 360K/720K/1.44M/2.88M floppy disk drive, a multi-mode parallel port, two serial ports, a GAME port, the mouse and keyboard interface and the BIOS Flash ROM interface.

Flash ROM. This 2Mb firmware contains the programmable BIOS program.

PCI slots. These six 32-bit PCI 2.2 expansion slots support bus master PCI cards like SCSI or LAN cards with 133MB/s maximum throughput.

Audio CODEC. The ADI AD1980 is an AC’97 CODEC that allows

6-channel audio playback. The audio CODEC provides six DAC channels for 5.1 surround sound, S/PDIF output, AUX and Line In stereo inputs, integrated headphone amplifier, greater than 90dB dynamic range.

1-4

Chapter 1: Product introduction