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Chapter 1: Product introduction
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.
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