Epson Equity 386/20 Dimensions

EPSON

Product Support Bulletin

Subject: Proper Method for Running Benchmark and Diagnostics Programs

Date: 06/04/93 PSB No: S-0158

Page(s): 1 of 1 Originator: MWT

This bulletin describes the proper method for running any benchmark or diagnostics

programs. This applies to any computer system.

In most cases, the computer should be started using an MS-DOS boot diskette

that’s ‘clean’ -

in other words, one with no CONFIG.SYS or AUTOEXEC.BAT files.

The appropriate executable can then be run, either from diskette or hard drive.

There will be some exceptions to the above rule. In attempting to benchmark or

troubleshoot any add-on that requires a device driver (CD-ROM, local area network,

etc.), obviously the necessary device driver(s) must be loaded. Also, some

programs will require a minimum number of FILES or BUFFERS to be defined in

the CONFIG.SYS file. Such programs will usually display this requirement if they

are run without the necessary CONFIG.SYS file.

For the most consistent results, use the absolute minimal boot configuration that’s

allowed by the hardware being tested.

EPSON

Product Support Bulletin

Subject: Equity Series SIMM Compatibility

Date: 12/4/91

Page(s): 1 of 1

PSB No: S-0136

Originator: JAD

Due to the influx of third party SlMMs on the market, there are some that are not

compatible with Epson products. This bulletin is intended to be an aid in ensuring

that only compatible SlMMs are chosen for use in Epson’s Equity Series of

computers.

The SlMMs in question were SEIMENS, CUMULUS and KINGSTON. Installing these

SlMMs in Epson products may cause the following errors:

Parity Check 1

18FFFE 0000 202 Memory Address Error

164 System Options Not

Set

1500 E000 201” DOS RAM Address Error

It was thought that the chips used in these SlMMs were of poor quality.

Epson Portland evaluated the SlMMs in question and found that this was not true.

The problem is caused by the SIMM circuit boards (ITE and TECAP circuit boards)

used to manufacture the SIMM modules. The dimensions of these boards are not

compatible with industry standard SIMM sockets. This may result in incomplete

contact between the SIMM assembly and it’s socket. This is caused by insufficient

size of the contact surfaces in these products. Also enlarged holes in the TECAP

product allow the component pin to pass entirely through the hole without making

contact.

It is recommended that only SIMMS meeting industry standard contact surface

specifications be used in Epson Equity computer products.

Some recommended SlMMs that were tested and found Compatible are:

Toshiba

Matsushita

CDC Enterprises

Samsung

Aculogic

For more information contact Technical Support.

EPSON

EPSON AMERICA, INC.

INFORMATION

Product Support Bulletin

Subject:

Maximum Number of Printers Supported by Current Equity Computers

Date: 02/06/91

PSB No: S-0128

Page(s): 1 of 1 Originator: KAS

As computing environments increase in complexity, there has been an increasing

number of instances that require the support of several printers by one computer.

One common example is that of using Novell Netware’s print server capabilities to

provide printer access to a large group of users with differing printer requirements.

Netware is capable of supporting three (3) parallel and two (2) serial printers on one

server. Recent testing has shown that the Equity 386/25 Plus, Equity 386/25, Equity

386/20 and the Equity 386SX Plus will support three (3) parallel ports along with two

(2) serial ports. The key factor in providing support for a third parallel port is the

need for a parallel interface card that can be set to the IBM Monochrome

Graphics/Parallel printer I/O address at 3BCh. The computer looks for this address

first and, if present, will assign the parallel port on that card as LPT1. The built-in

parallel port (I/O address 378h) will then be addressed as LPT2. We also had an

AST I/O Mini serial/parallel card addressed at l/O address 278h, which was then

reassigned to LPT3. Each of the three parallel ports was attached to a printer. There

was also a printer attached to each of the two serial ports. All five printers were then

set to print simultaneously under Netware Version 2.15 Rev. C using PCONSOLE. All

five printers were able to print the documents assigned to them, simultaneously. The

units were then tested using WordPerfect 5.1 on the network and again were

successful in printing to the five (5) printers at the same time. The last tests were run

with the units booting under DOS 4.01 and screen prints being directed to each of

the printers. WordPerfect 5.1 was also used to direct documents to each of the

printers. Again all five (5) printers were able to print the files that were sent to them.

Although not all Equity computer models were tested in this situation, the Equity

models 386SX, lIe, Ill+ and II+ should work in a similar manner if the instructions

above are used as a guide. There is one item of which to be aware when using the

this setup and that is the system will complete the RAM count and lock up if using a

monochrome monitor. If you need to use three parallel ports, USE A COLOR

MONITOR.

EPSON AMERICA, INC.

Product Support Bulletin

Subject: Equity 386/20 Using Memory Above 2MB

Date: 10/09/92 PSB No: S-0123A

Page(s): 1 of 1 Originator: JDB/KAS

The purpose of this bulletin is to provide information on a problem which may occur

when using more than 2MB of memory in the Equity 386/20 computer.

When expanding memory above 2MB for memory intensive applications

(Networking software, AUTOCAD, LOTUS 1-2-3), insure that ROM BIOS version

1.11 or higher and the corresponding CHIPS set are being used, and a Revision 02

CHET-RM board is installed.

If the Equity 386/20 is to be used in the applications mentioned above and it does

not have the component versions described above, they can be ordered with the

following part numbers:

ROM BIOS

(current)

Y184802004 (CHE-B5)

Lot. 9B

(Rel. 2.16) Y184801004 (CHE-A5)

Lot. 9C

CHIP

Set

X403823021 (7L) Memory Controller

X403822061 (9F) Int. Peripheral Controller

CHET-RM Board Y184202100 (02 rev #)

Reference Disk Required for User-Defined drive types and

types 59-63 and the use of 1.44MB FDD as

drive A:. (When using BIOS rel 2.10 or

higher). Available on the Epson RBBS.

The problem does not occur in units that have this configuration.

NOTE

The chips in location 7L and 9F can be identified by the numbers printed on the top

of the chips, these are the old and new numbers:

LOCATION

TYPE

OLD

NEW

9F OLD

9F NEW

CHIP NUMBER

P82C302-20

P82C302C

P82C206F-1

P82C206H

PART NUMBER

X403823020

X403823021

X403822060

X403822061

REFERENCE:

Engineering Change Notice EQ386/20-001A

Product Support Bulletin

Subject:

Novell Advanced NetWare 286 ND on an 80386 - based Server

Date:

4/11/90

Page:

1 of 1

PSB No:

Originator:

MWT

This bulletin is to inform you of a potential problem that can occur when

running Novell Advanced NetWare 286 in non- dedicated (ND) mode on an

80386 - based file server. This includes the Equity 386/20 and the 386SX.

When a DOS command is executed on the ND server and there is moderate

network activity, the system may halt with the following error message:

Abend: INVALID TASK STATE INTERRUPT

This is apparently due to some 80286 - specific protected mode operations that’

do not function quite the same way when executed on an 80386. This has

been observed in the following NetWare versions:

Advanced NetWare 286 2.0a

Advanced

NetWare 286

2.11

Advanced

NetWare 286

2.12

Advanced NetWare 286 2.15a

Advanced NetWare 286 2.15b

ELS Level I

ELS Level II

Note that the problem does not occur with the latest version, Advanced

NetWare 286 2.15c. Unless this version of NetWare 286 is being used, we

cannot recommend non - dedicated file server operation with any Epson

80386 - based computer.

Product Support Bulletin

Subject:

Equity 386/20 Patch for Novell NetWare 386

Date:

4/11/90

Page:

1 of 1

PSB No:

Originator:

This bulletin is to inform you of the solution to a problem that occurs when

running Novell NetWare 386 on the Equity 386/20. Note that the problem only

appears when booting the 386/20 from floppy diskette, which is common

practice to allow the entire hard disk drive to be partitioned as a single

NetWare 386 volume.

When the SERVER program enters 80386 protected mode, it shuts down the

floppy disk motor(s). After shutting down the motor(s), SERVER does not

update the BIOS motor status byte located at 0040:003F. In the motor status

byte, bit 0 =1 indicates drive 0 (A:) motor is currently on. Bit 1 = 1

indicates drive 1 (6:) motor is currently on.

When SERVER needs to load a file (.NLM, .LAN, or .DSK), it switches back to

real mode to let DOS handle file manipulation. DOS then calls the BIOS to

access the floppy. The BIOS checks the motor status flag, which is on. The

BIOS then attempts to access the floppy while the motor is off. After about

one second, the BIOS returns an error of 80h (timeout) or 40h (seek

incomplete). Depending on the DOS function in process, DOS may not be

able to recover and complete the function.

In particular, these DOS functions may not recover if they are initiated when

the motor status flag is on, but the drive motor is actually off: Read From

File (function 3Fh) and Find First (function 4Eh). Read From File will fail if the

file is already open, the flag is on and the motor is off. Find First (search

for matching file name) will fail if the search string contains a subdirectory

name, the flag is on and the motor is off.

The solution for this is a small (301 bytes) patch program called

N386FIX.COM. This patch, when executed prior to running the NetWare 386

SERVER program, will properly set the motor status flag.

The compressed file N386FIX.ZIP may be found on the Epson Product Support

RBBS in the file library PATCH. It is also available from the Epson Forum on

Compuserve. It contains the executable file as well as an explanatory ASCII

text file, N386FIX.DOC. Download with protocol and decompress with any utility

that handles the .ZIP file format.

EPSON AMERICA, INC.

INFORMATION

Product Support Bulletin

Subject:

Equity Series Computers and Lotus 1 - 2 - 3 Release 3.0

Date:

12/7/89

Page:

1 of 1

PSB No:

S-0108

Originator:

KAS

d(+#

The advent of Lotus 1 - 2 - 3 Release 3.0 has raised a number of questions

regarding memory management for the Epson Equity computers, specifically the

Equity 386/20, Equity 386SX and Equity Ile. The purpose of this document is

to discuss the memory requirements for Lotus 1 - 2 - 3 Release 3.0 and

recommendations for installation.

Because programs run significantly faster with extended memory, Lotus

recommends that you configure as

much

memory as possible as extended

memory.

When installing Lotus 1 - 2 - 3 Release 3.0 on the Equity 386/20 or the Equity

386SX, do not use the EMS managers supplied with the system software

(EEMM386.EXE for the Equity 386/20 and EMM386.SYS for the Equity 386SX).

Neither of these EMS managers support the Virtual Control Program Interface

(VCPI) which is required for compatibility with

Lotus

1 - 2- 3 Release 3.0.

NOTE: Should you require an EMS manager for your Equity 386/20 or Equity

386SX, there are third party software packages available that are compatible

with Lotus 1 - 2 - 3 Release 3.0.

Two such packages are

386m

version 4.03

or later, and Quarterdeck Expanded Memory Manager (QEMM) version 4.2 or

later.

Do not use VDISK with the /E switch when running Lotus on the Equity

386/20. Though Lotus Release 3.0 will load, it will overwrite any data in the

RAMDISK. VDISK supplied for both the Equity Ile and Equity 386SX is

compatible with Lotus 1 - 2 - 3 Release 3.0 and does not have a problem with

ovewriting data in the RAMDISK.

When installing Lotus 1 - 2- 3 Release 3.0 in the Equity lIe, use the EEMM286

memory manager in the hardware - emulation EMS mode. To do this, set

memory as expanded memory on the Equity lIe and do not specify the

expanded memory size.

When the Equity lIe has only 1Mb system memory,

you must select on - board memory type 5 in SETUP. When the Equity lIe

has more than 1Mb of system memory, you must select type 3, 4 or 5.

Avoid the use of HDCACHE when installing Lotus 1 - 2 - 3 Release 3.0 on any

of the Equity computer systems discussed in this document.

Product Support Bulletin

Subject:

Equity II+, Ill + and 386/20 Compatibility with New Western Digital

Hard Disk Controllers

Date: 9/8/89

PSB No:

S-0101

Page: 1 of 1

Originator:

PNM

r1.m.

Western Digital has introduced a new series of 16 - bit hard disk controllers

that replaces the models previously certified for use in our Equity Series

computers. This bulletin reports on the compatibility of the new model

controllers in our 80286 - and 80386 - based computers.

Current Model New Model

WD1003A- WAH WD1003V- MM1

Used in the Equity II + and III +, and currently available from Epson

America, the WD1003A - WAH has been replaced in Western Digital’s product

line by the WD1003V- MM1, The new controller is capable of providing a

2:1 interleave format. This controller card has been tested in the Equity II +

and Ill+ with the Epson 20Mb and 40Mb hard drives as well as the

Seagate ST - 251. Tests were performed using a 2:1 interleave factor and all

tests were completed successfully.

Current Model New Model

WD1006A - WAH

WD1006V- MM1

The WD1006A - WAH hard disk drive controller card, used in the Equity

386/20 and ‘currently available from Epson America, has been replaced in

Western Digital’s product line by the WD1006V- MM1. The new controller is

capable of providing a 1:1 interleave format. The controller card has been

tested in the Equity II+, Ill+ and 386/20 with the Epson 20Mb and 40Mb

hard drives as well as the Seagate ST-251. All tests were performed using

a 1:1 interleave factor in the test units and were completed successfully.

Product Support Bulletin

Subject:

16MB of RAM and the Equity 386/20 Computer

Date: 8/17/89

Page: 1 of 1PSB No: S-009

Originator:

Purpose:

The purpose of this bulletin is to explain a potential problem when installing

16MB of RAM using 16 1MB SIMM modules. The SETUP program

versions 5.1 and 5.2 allow an expansion memory setting that causes the

following error to be displayed:

FC0000 6DDB 201 - Memory error

- Parity check 1

164 -

Memory size error

(Run SETUP in DIAGNOSTICS)

Setup Information:

When entering information into the SETUP program, use the following

values:

640K

Main

15104K Expansion

Memory Map:

Address

Range

Size

000000 - 09FFFF

0 - 640K

640K

Use

RAM - Main

0A0000 - 0FFFFF

640K - 1 M

384K Reserved

100000- FBFFFF

1M - 15.75M

15104K

RAM - Expansion

FC0000 - FFFFFF 15.75M - 16M 256K

Reserved

Explanation:

The 384K of address space between 640K and 1M is reserved for system

use (including the SHADOW RAM feature). The 256K address space

between 15.75M and 16M is also reserved for system use. The 640K and

15104K are combined into 15744K of total accessible RAM.

Product Support Bulletin

Subject:

Novell Netware Compatibility Test Results for the Equity 386/20

Date:

8/11/88

Page:

1 of 1

PSB No.:

Originator: GLW

This bulletin is intended to provide a summary of the results of compatibility

testing of the Equity 386/20 with Novell local-area networking products. The

Equity 386/20 was tested at 20MHz. This information was provided to Epson by

Novell’s Independent Manufacturing Support Program. For complete test result

reports, contact Novell, Inc.

Terms:

NDFS -

Non - Dedicated File Server

NDWS -

Non - Dedicated Work Station

Netware Version

Netware Type

Tested as

2.0a

ELS I

NDFS

2.15 2.15

ELS II ADV 286

NDFS NDFS

NDFS NDWS

Network Interface

3Com 3C501

3Com 3C503

3Com 3C505/1194

3Com 3C505/2012

AT&T Starlan

Gateway G - Net

IBM PCN II

IBM TRN

Micom Nl5010

Micom NP600

Novell Int NIC

Novell NE1000

Novell NE2000

Novell NL1000

Novell RX- NET

Proteon ProNet

SMC/PD ArcNet

Novell DCB/NE2000

tested as compatible

failed

’

< blank > not tested

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