PT-5IT SYSTEM BOARD INTRODUCTION
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I. INTRODUCTION
A. SYSTEM OVERVIEW
ThePT-5ITPentium PCI Local Bus system board is designed based on the Intel
82430TX PCIset system chipset and Winbond I/O chipset, which built-in two channels
PIO and Bus Master Enhanced PCI IDE port, one Floppy Disk control port, two high
speed Serial ports (UARTs) and one multimode Parallel prot and also supports IR and
USB ports. It is designed to fit a high performance, Pentium 75 MHz to 233 MHz based
solution for high-end and true GREEN-PC computer systems.
This system board supports the Peripheral Component Interconnect (PCI) Local Bus
standard (PCI Specification Rev. 2.1 compliant). It not only breaks through the I/O
bottlenecks of the traditional ISA main board, but also provides the performance needs
for networking and multi-user environments.
A. FEATURES
The PT-5IT system board contains the following features:
Pentium P54C/P54CT/P54CS/P55C, Cyrix 6x86 / 6x86L & AMD K5 /K6 based,
PC/AT compatible system board with ISA Bus and PCI Local Bus.
Supports the most part of "586" level CPUs designed by Intel, Cyrix and AMD.
Built-in 2 sets voltage regulator circuit to support multi-specification CPU I/O
voltage (+3.3V DC and +3.52V DC) and CPU CORE voltage (+2.8V DC).
DRAM Memory : Supports fast page mode (FPM), Extended Data Out (EDO) and
SDRAM (synchronous) memory.
Cache Memory : Supports pipelined burst SRAMs. Cache size up to 512KB.
BIOS : Supports Plug and Play BIOS.
IDE ports : Supports two channels PIO and Bus Master Enhanced PCI IDE
port, up to Mode 4 timing, and up to 14 MBytes/s transfer rates.
Supports “Ultra DMA 33” transfers up to 33 MBytes/sec.
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