1.4.2 Core specifications

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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 400 MHz system bus that allows 3.2GB/s data transfer rates.

3North bridge controller. The SiS650GL Host Memory Controller integrates a high performance host interface for the Intel Pentium 4 processor, a 2D/3D graphic engine, a memory controller, and the SiS MuTIOL® Technology connecting with the SiS961B0 MuTIOL Media I/O.

4ATX 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).

5DIMM sockets. These 168-pin DIMM sockets support up to 2GB system memory using unbuffered non-ECC PC133/PC100 DIMMs.

6IDE connectors. These dual-channel bus master IDE connectors support up to four Ultra DMA/133/100/66, 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.

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South bridge controller. The SiS961B0 MuTIOL Media I/O integrates the audio controller with AC’97 interface. The Ethernet MAC, the Dual Universal Serial Bus Host controllers, the IDE Master/Slave controllers, and the MuTIOL connect to PCI Bridge.

ASUS ASIC. This chip performs multiple system functions that include hardware and system voltage monitoring, clock buffering, among others.

9Standby 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.

10Floppy 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.

11Flash ROM. This 2Mb firmware contains the programmable BIOS program.

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Chapter 1: Product introduction