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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 800/533/400 MHz system bus that allows 6.4GB/s, 4.3GB/s, and 3.2GB/s data transfer rates, respectively.

North bridge controller. The Intel® 865GV Memory Controller Hub provides the processor interface with 800/533/400 MHz frequency, system memory interface at 400/333/266MHz operation. The GMCH interconnects to the south bridge ICH5 via the Intel® Hub Architecture.

DDR DIMM sockets. These four 184-pin DIMM sockets support up to 4GB system memory using unbuffered non-ECC PC3200/2700/2100 DDR DIMMs.

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

Super I/O controller. This Winbond 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. This controller also integrates the ASIC for PC health monitoring.

7Floppy 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.

8IDE connectors. These dual-channel bus master IDE connectors support Ultra ATA100/66/33, PIO Modes 0~4 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 EEPROM. This 4Mb firmware contains the programmable BIOS program.

SATA connectors. These connectors support Serial ATA HDDs and allows for up to 150MB/s data transfer rate, faster than the standard Parallel ATA by 17MB/s.

11South bridge controller. The fifth-generation Intel I/O Controller Hub (ICH5) is a subsystem that integrates various I/O functions including 2- channel ATA100 bus master IDE controller, up to eight USB 2.0/1.1 ports, I/ O APIC, SMBus 2.0 controller, LPC interface, AC’97 2.2 interface, and PCI 2.2 interface. The ICH5 also contains the necessary arbitration and buffering for efficient utilization of these interfaces.

12Standby 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.

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Chapter 1: Product introduction