Epson Equity 386/20 Product Support Bulletin(s) - Page 19

Equity 386/20 Questions and Answers

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EPSON AMERICA, INC. EPSON Product Support Bulletin Subject: Equity 386/20 Questions and Answers Date: 8/7/91 Page(s) : 1 of 8 PSB No: S-0086A Originator: PNM/JAD Q1. What microprocessor does the Equity 386/20 use? A. The Equity 386/20 utilizes an Intel 80386 microprocessor running at 20 megahertz. Use of this chip allows for a high powered, high speed 32 bit machine. Q2. What is "Shadow Ram"? What does it do and how does it work? A. Shadow RAM, activated through the setup program, is used to copy information from the system ROM BIOS and the video ROM into RAM. This provides for faster access of BIOS information by the Equity 386/20 resulting in enhanced system performance. Q3. What RAM chips should be used when upgrading the memory? A. Use the Epson 80 nSec - 9 bit SIMM module kits to expand the system memory. Epson supplies two memory upgrade kits, a 1 megabyte kit (4256K SIMM modules ) and a 2 megabyte kit (2-1 MB SIMM modules). You can expand the memory up to 16 Megabytes directly on the 32-bit memory card. Should you need to use third party SIMM modules we recommend the following: ACULOGIC CDC Enterprises MATSUSHITA SAMSUNG TOSHIBA 1 Mbit x 9 80 nsec 1 Mbit x 9 80 nsec 1 Mbit x 9 80 nsec 1 Mbit x 9 80 nsec 1 Mbit x 9 80 nsec The following SIMM's do not work in with the Equity 386/20: COMPAQ CUMULUS IBM PANASONIC SIEMENS

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EPSON AMERICA, INC.
EPSON
Product Support Bulletin
Subject:
Equity 386/20 Questions and Answers
Date: 8/7/91
PSB No:
S-0086A
Page(s) : 1 of 8
Originator: PNM/JAD
Q1.
A.
Q2.
A.
Q3.
A.
What microprocessor does the Equity 386/20 use?
The Equity 386/20 utilizes an Intel 80386 microprocessor running at 20
megahertz. Use of this chip allows for a high powered, high speed 32 bit
machine.
What is “Shadow Ram”? What does it do and how does it work?
Shadow RAM, activated through the setup program, is used to copy
information from the system ROM BIOS and the video ROM into RAM. This
provides for faster access of BIOS information by the Equity 386/20 resulting
in enhanced system performance.
What RAM chips should be used when upgrading the memory?
Use the Epson 80 nSec - 9 bit SIMM module kits to expand the system
memory. Epson supplies two memory upgrade kits, a 1 megabyte kit (4-
256K SIMM modules ) and a 2 megabyte kit (2-1 MB SIMM modules). You
can expand the memory up to 16 Megabytes directly on the 32-bit memory
card. Should you need to use third party SIMM modules we recommend the
following:
ACULOGIC
1 Mbit x 9 80 nsec
CDC Enterprises
1 Mbit x 9 80 nsec
MATSUSHITA
1 Mbit x 9 80 nsec
SAMSUNG
1 Mbit x 9 80 nsec
TOSHIBA
1 Mbit x 9 80 nsec
The following SIMM’s do not work in with the Equity 386/20:
COMPAQ
CUMULUS
IBM
PANASONIC
SIEMENS