2Chapter 1: Product introduction1.2Core SpecificationsThe A7S333 motherboard is designed and assembled according to the higheststandards. This ASUS motherboard represents the latest advances andoffers users the finest componentry available today...AMD® Athlon XP, Athlon and Duron Socket A (462) ProcessorSiS® 745Chipset:supports AGP 4X/2X mode, 133/100MHz Front Side Bus,and the fastest 333/266/200MHz memory bus. TheSiS®745integratedperipheral controller supports UltraDMA/100/66/33 for burst mode datatransfer rates of up to 100MB/sec, and USB controller with three roothubs for six USB ports.PC 2700 / 2100 / PC1600 DDR Support: Equipped with three Double DataRate Dual Inline Memory Module (DDR DIMM) sockets to support up to3GB of DDR SDRAM, the newest memory standard with the highestbandwidth and lowest latency currently available. This new memorytechnology increases performance by executing two actions per clockcycle, resulting in data transfer rates of up to 2.7 GB/s for 166MHz DDR,2.1 GB/s for 133MHz DDR and 1.6GB/s for 100MHz DDR SDRAM.UltraDMA/100 Support: Comes with an onboard PCI Bus Master IDEcontroller with two connectors that support four IDE devices on twochannels. Supports UltraDMA100/66/33, PIO Modes 3 & 4, Bus MasterIDE DMA Mode 2, and Enhanced IDE devices, such as DVD-ROM, CD-ROM, CD-R/RW, LS-120, and Tape Backup drives.Multi-I/O Chipset: Offers complete support for a variety of I/O functions.Provides two high-speed UART compatible serial ports and one parallelport with EPP and ECP capabilities. UART2 can also be directed fromCOM2 to the Infrared Module for wireless connections. The Super I/Ocontroller supports a floppy disk drive, PS/2 keyboard, and PS/2 mouse.Smart BIOS:2Mb firmware enables CPU/DDR SDRAM frequencyadjustments, boot block write protection, and HD/SCSI/MO/ZIP/CD/Floppyboot selection.Expansion:One AGP 4X, six USB ports, five PCI slots, AMR slot (Optional),SPDIF digital audio connector, 1394 header (Optional), game connector,iPanel connector, front audio panel connector, smart card connector,infrared port.Connections:Parallel Port, PS/2 mouse Port, PS/2 keyboard, 6 USB ports,Microphone, Line In Jack, Line Out Jack, Standard ATX power.