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

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

NorthBridge Controller. This Intel Brookdale GL controller integrates a high performance host interface for the Intel® Pentium® 4 processor, a memory controller and an integrated graphics interface.

DDR DIMM Sockets. These two 184-pin DIMM sockets support up to 2GB using non-ECC PC2100/1600 DDR SDRAM DIMMs with 2.1GBytes/sec of transfer rate.

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

6Super I/O chipset. This 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 PS/2 keyboard and mouse port, a multi-mode parallel port, a game port and two serial ports.

7Floppy Disk connector. This connector connects 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.

8IDE Connectors. These dual-channel bus master IDE connectors support up to four Ultra DMA 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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Flash ROM. This 2Mb firmware contains the programmable BIOS program.

South bridge controller. This Intel ICH4 FW82801DB controller integrates the AC’97 Interface, six Universal Serial Bus 2.0, two IDE Master/Slave controllers, the ITE 8708F Super I/O, Flash BIOS, and PCI bus for two PCI Slots.

11ASUS ASIC. This chip performs multiple system functions that include hardware and system voltage monitoring among others.

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Chapter 1: Motherboard Information