Overview - Pine Technology PT-429G User Manual

SECTION 1
INTRODUCTION

1.1 Overview

PT-429G offers a 32-bit programming architecture compatible with the software base of the 486
microprocessor. It is a reliable main board using a UMC chipset and a multi-layer printed circuit hoard
The chipset consists of UM82C491F-AC and UM82C493F which provide the most cost effective and high
xperformance solution for a 486 computer system.
The UK482C491F-AC contains a sophisticated direct-mapped cache controller with write-back operation,
and fast page mode DRAM Controller, AT Bus control logic, data bus conversion logic, CPU reset logic,
clock generation for CPU, keyboard and timer, DMA/refresh logic and peripheral interface logic. The
UMC493F contains a sophisticated VESA Controller which can run up to 5OMHz.
A block of 128K memory of the system DRAM is used for system and video shadow RAM to increase the
system performance. The video shadow RAM consists of four 16K pages which can be enabled
respectively.
The PT-429G is a VESA Local Bus motherboard The three Local Bus slots fully comply with the VESA (
Video Electronics Standards Association ) Master mode specifications. This means I/O data can run as
fast as CPU. The speed of I/O peripherals can be dramatically increased by connecting VESA compatible
controller cards to the VESA Local Bus slots on the PT-429G.
The PT-429G is a green design mother-board which means when there is no operation on the system for a
while (the period is software programmable), the PT-429G will slow down its original working frequency
to 8 MHz speed This will help to save the power consumption in order to protect our environment. The
PT-429G is equipped with a AUX Green connector which can be connected up to four external Green
devices through our Green cable.
"This is an ENERGY S T A R compliant product."
"The Environmental Protection Agency ENERGY S T A R program defines that as an Ally of this
program the specified manufacturer must produce systems, or system components which enable a
computer system to operate and draw 30 watts or less of power in idle mode. Although the EPA do not
endorse any particular product or service, the program is designed to offer a cooperative effort between the
EPA and the component manufacturer (Ally) to provide energy saving products and education to
customers."
"It runs with Netware"
PT-429G was authorized by Novell to use the Novell Yes, It runs with Netware certification mark.