VIA693A System Board 1
Chapter 1 Introduction
1-1
Main Board Overview
The main board is a new-generation Pentium® II/III and Cyrix III main board
designed based on VIA VT82C693A & VT82C686A chipsets. The main board
has integrated the latest advances in processor, memory, I/O technologies into an
ATX form factor.
The main board utilizes VIA 693A chipset designed for Pentium® II/III CPUs and
supports new architects such as high-speed AGP graphic port, SDRAM, Ultra
DMA/66, bus master IDE and USB port. It has two Dual In-line Memory Modules
(DIMM) which can be installed with SDRAM memory. The memory subsystem
supports up to either 256 MB (SDRAM). The main board using the Socket370,
accepts Intel® Pentium® II(66MHz) Celeron & Pentium® III(100/133 MHz)
(Celeron/Coppermine) and Cyrix III CPU processors. Built-in second level (L2)
cache in CPU, there is no cache necessary in this system board.
The main board has also implemented VIA VT82C686A high performance I/O
Controller utilizes with fully Plug and Play device which supports 2.88 MB
Floppy, Dual 16550 Compatible (with 16 bytes FIFO, up to 460K baud rate)
Serial Port, ECP (Enhanced Capabilities Port), EPP (Enhanced Parallel Port)
parallel port, Infrared IrDA (HPSIR), Amplitude Shift Keyed IR. (ASKIR) port
and Audio.
The main board supports 5*PCI, 1*ISA, 1*A.G.P for highest performance I/O
add-on adapter cards.
Cyrix III function is reserved for internal test only.
