Octek Panther II, Manual

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Chapter 1
Introduction
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The Panther-II system board is a high performance system board
that represents a significant technological advance over the conventional
386SX designs. It offers an increased power and flexibility architecture
by supporting 80386SX processor speeds up to 25 Mhz
(See NOTE on
preface) . The design utilizes advanced main frame techniques such as
two or four way interleaving along with high speed page mode capability.
The Panther-II offers an inexpensive entrance to 386-specific
applications. It combines the abilities of the 80386 and the 80286
machines. Like an 80386 machine, it processes instructions internally in
32-bit chunks. Like an 80286 machine, it operates with a 16-bit data bus
and a 24-bit address bus. This constructions allows the Panther-II
system to run 386 software in essentially a 286 hardware environment.
For the memory system, It supports up to 16 MByte of DRAMs
on the system board. System and Video shadowing features are
supported on all 16K boundaries between 640K and 1M. It is also
optimized to allow mixing of DRAM types to give end user the
maximum flexibility in choosing the correct memory capacity for their
applications. This flexibility in configuration allows you to select an
ideal cost/performance combination.