Introducing The Mainboard; Introduction - ECS L7S7A Manual

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Thank you for choosing the L7S7A mainboard. The L7S7A is designed to fit

the advanced AMD processors in the 462-pin package. Based on the ATX

form factor featuring the SiS746 Northbridge and SiS963/963L Southbridge

chipsets. This mainboard provides the standard 133/166MHz front side bus

with for high-end business or personal desktop markets.

The mainboard incorporates the SiS746 Northbridge and SiS963 Southbridge

chipsets.

The SiS746 Northbridge features the S2K complaint bus driver

technology to support AMD 133/166 MHz FSB processor. It also supports the

AMD PowerNow!™ dynamic power management technique. The Memory

Controller can support DDR and offer bandwidth up to 2.7GB/s under DDR333

in order to sustain the bandwidth demand from host processor, as well as the

multi I/O masters and AGP masters. While the SiS963/963L Southbridge inte-

grates the Universal Serial Bus 2.0 Host Controllers, 1394a

and Audio Controller with AC 97 interface.

The L7S7A is designed to give customers an advanced, multimedia solution at

a very low cost. It provides advanced full set of I/O ports, such as dual chan-

nel IDE interfaces, a floppy controller, two high-speed serial port, an EPP/ECP

capable bi-directional parallel port connector, four USB (Universal Serial Bus)

connector, a PS/2 keyboard, mouse and 1394a connectors. One AGP slot,

five PCI local bus slots and one communication and networking riser (CNR)

slot provide expandability for add-on peripheral cards.

Note: SDRAM provides 800 MBps or 1 GBps data transfer depending on whether

the bus is 100 MHz or 133 MHz. Double Data Rate SDRAM (DDR SDRAM)

doubles the rate to 1.6 GBps or 2.7 GBps by transferring data on both the ris-

ing and falling edges of the clock. DDR SDRAM uses additional power and

ground lines and requires 184-pin DIMM modules rather than the 168-pin

DIMMs used by SDRAM.

Introducing the Mainboard

(except for SiS963L)

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