1.3.1 Core specifications

1

2

3

North bridge controller. The VIA® KT400 supports AGP 8X mode, 333/ 266/200MHz Front Side Bus, and the latest 400/333/266/200MHz 64-bit memory bus.

CPU socket. Socket 462 (Socket A) surface mount, Zero Insertion Force (ZIF) socket for the AMD Barton/Thoroughbred/Athlon XP/Athlon/Duron Processors, with 600 MHz ~ 2.25GHz system bus. (Note: When using 333MHz FSB CPU, system memory supports DDR333 only.)

TABLE 1.3.1

FSB

DDR 266

DDR 333

DDR 400

FSB/DDR

 

 

 

 

200/266 MHz

 

 

 

Support Table

 

 

 

333 MHz

 

 

 

 

 

 

 

DDR DIMM sockets. These three 184-pin DIMM sockets support up to 3GB system memory using unbuffered non-ECC PC2100/1600 DDR DIMMs. (Note: PC2700 maximum to 4 banks only. PC3200 maximum to 2 banks only. Visit the ASUS website [www.asus.com] for the latest qualified DDR400 module list.)

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).

5IDE connectors. These dual-channel bus master IDE connectors support up to four 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.

6Floppy 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.

7South bridge controller. The VIA® VT8235 integrated peripheral controller supports various I/O functions including, 2-channel ATA/133 bus master IDE controller, up to six USB 2.0 ports, LPC Super I/O interface, AC’97 interface and PCI 2.2 interface.

8Flash ROM. This 2Mb firmware contains the programmable BIOS program.

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.

10Super 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 standard compatible UARTs and a Flash ROM interface.

11PCI 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.

1-4

Chapter 1: Motherboard Information