Specifications

Introduction
Chapter 1
Introduction
This chapter will cover the general specifications and features of the SL 486VE.
1.1 General Specifications and Features
The SL 486VE mainboard is based on the powerful 80486 microprocessor and
incorporates advanced computer technology to meet the requirements of the
next generation of operating systems and applications. Yet, it retains full
compatibility with the original IBM XT and AT and uses existing PC software
and hardware.
• Co-processor:
Support primary CPU with 80486SX for 25/ 33 MHz,
80486DX for 25/ 33/ 50 MHz or
80486DX2 for 50/ 66 MHz
Support CPU upgrade socket with OverDrive™ CPU.
All the above are packed in PGA package.
о Memory
n Cache:
Write-back/ write-through selectable direct mapped cache controller.
Support 64KB/ 128KB/256KB Cache memory size.
Two programmable Non-Cacheable regions.
a Memory:
Support 486 burst and EISA burst modes to local memory access.
Bank Interleaved Fast Page Mode DRAM access.
Support 256KB/ 1MB/ 4MB/ 16MB 30-pin SIMM module from 1MB
to 128MB main memory.
. Support AMI 64 KB BIOS.
. CHIPSet: SIS85C411/ С420/ С431/ С405/ C406 EISA CHIPSet.
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