Epson Equity 386SX PLUS 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
Product Support Bulletin
Subject: The Equity 386SX PLUS Diskless Workstation - lnstalling Optional
Equipment
Date: 3/7/91
PSB No: S-0134
Page(s): 1 of 3Originator: APA
WORKSTATION INSTALLATION SUMMARY
Install an 3 or 16-bit network interface card (NIC) with a auto-boot ROM in an
option slot.
Load the remote workstation boot files onto the file server. Typically, this is
done at another attached workstation, using a floppy drive to load the
necessary boot files. Instructions for this procedure can be found in the
section of your network documentation that addresses this type of installation.
Attach the diskless workstation NIC to the network using the appropriate
cable.
When the workstation is booting, and a local hard drive with a bootable
partition is present, the system will ask if you want to boot from the network. If
“N” is selected, the local hard drive will be used to boot. If ‘Y’ is selected, the
system will look for a file server. If no file server can be found, it will display
an “Error finding server” message, and will make additional attempts every few
seconds until a server is found.
FLOPPY DRIVE INSTALLATION
Floppy disk drives are inserted into the drive bays, without FDD guide rails,
using four screws to secure each drive.
Two floppy drive cables are included. A read/write cable (standard seven wire
twist) and a read-only cable (identified by heat shrink tubing located near the
connector that connects to the main board).
Install the standard diskette drive cable, if you want the system to be able to
both read and write data to a diskette inserted in the drive.

PSB No: S-0134
Page: 2 of 3
FLOPPY DRIVE INSTALLATION (continued)
Use the write-protected cable if you do not want users to be able to write data
to any diskette inserted in the drive. This cable prevents users from copying
data from the network server (or any other drive they can access) onto a
diskette in either the A or B drive. If an attempt is made to write to a floppy
diskette, a ‘Write protect error” will occur. However, data can still be read
from a diskette and copied to a local hard drive or other network drive.
HARD DRIVE INSTALLATION
One IDE drive cable, with two drive connectors, is supplied with the system.
Only standard drive types 0-63 can be specified in the ROM setup program
(refer to drive table on pages 2-24 & 2-25 of the user’s manual). The drive
types are identical with the standard Equity 386SX Plus).
If the standard Equity 386SX PLUS SETUP program is used to specify a user-
defined drive type (or modify other settings), the “Diskette boot control” option
will be disabled upon exiting and updating..
If the ROM setup program is used to re-enable the boot control, the standard
drive type specified by the ROM SETUP program will also be saved, thus
overriding the user-defined settings.
The ROM SETUP program allows an incorrect drive type (for example: 37) to
be set and saved. Therefore, care must be taken to use a correct drive type.
The following is a list of some common IDE drives and the drive types that
should be used:
MODEL DRIVE SIZE TOTAL BYTES
TYPE
(to nearest MB)
(per CHKDSK)
Conner CP-344
59
41 MB
42,496,000
Conner CP-3104 60
100 MB 104,515,584
Seagate ST-157A-1 14 42 MB
4u=,=
Seagate ST-1201A
or Imprimis/CDC 54 153 MB
160,055,296
94354-200

PSB No: S-0134
Page: 3 of 3
OTHER CONSIDERATIONS
If you desire access to the local hard drive while using the network, ensure
that the DOS downloaded from the file server can support the local hard drive
partition(s). For example, if a large 4.01 MS-DOS primary partition (>32MB) is
present on the local hard drive, and 3.30 DOS is used to boot from the file
server, the local hard drive will be inaccessible. (An error similar to “Invalid
drive specification” will occur when attempting to access the drive).
The DOS versions used should also be matched to allow the use of version-
dependent DOS utilities from the local hard drive.

EPSON AMERICA, INC.
EPSON
Product Support Bulletin
Subject: Introducing the Equity 386SX PLUS Diskless Workstation
Date: 8/7/91
Page(s): 1 of 4
PSB No: S-0133
Originator: APA
INTRODUCTION
This system has been designed to be a diskless workstation node on a local area
network. There are no disk drives supplied with this model. Cables are included to
install floppy drives and/or hard drives as the need arises. Standard procedures for
installing a diskless workstation are used and can be found in your network
installation documentation.
The user’s manual is the same as the one supplied with the standard Equity 386SX
PLUS, and contains a user’s guide update “slip-sheer that describes the
differences between the standard and the diskless models.
Differences between the standard model and the diskless model are summarized
as follows:
0
Does not include disk drives, DOS, video drivers or other software.
Includes drive cables for installing optional drives.
0
Setup utility is modified and is contained in ROM. New options include
extended memory and boot control.
0
User or Administrator mode is set by jumper J1 on the main board. The
control of this mode along with the system key lock protect the system
configuration resulting in added security.
0
Only supplied in a 1 MB configuration. Use instructions in the user’s
manual that pertain to the 1 MB model only.
IDENTIFICATION
Both the standard and diskless models have the same logo plate on the front of the
CPU; “Equity 386SX PLUS”. The “CODE" number can be used to identify the
diskless model, and is located on or near the serial number label attached to back
of the CPU:
CODE: A038590

PSB No: S-0133
Page: 2 of 4
ITEMS INCLUDED
Equity 386SX PLUS CPU with 1MB (soldered), power cord.
101 key enhanced keyboard (6-pin mini DIN).
User’s manual, slip-sheet and warranty card.
One key, used for locking the top cover of the CPU.
Three drive cables:
0 Read/write floppy cable.
0
Read-only floppy cable, identified by heat shrink tubing located near the
connector that connects to the main board.
0
IDE Hard drive cable with connectors for two drives.
SETUP NOTES
Setup is only available on boot-up (RESET or warm boot), and only when in
‘Administrator” mode (jumper J1 is set to “B”). When the computer completes
its power-on diagnostics, two beeps will occur (this is not a SETUP error) and
the following prompt will appear:
Press F10 to run Setup
After 5 to 8 seconds if F10 is not pressed, the computer will continue to boot.
If F10 is pressed, the Setup screen will appear. Press the F7 key twice to save
and reboot. Refer to page 3 of this document for a listing of the setup options.
If in “User” mode (J1 set to “A”), one beep will occur, no F10 option will
appear, and the system will continue booting.
Differences in Setup between the standard Equity 386SX PLUS and the
diskless version include the following:
0
Extended memory size can be specified (in 128K increments).
0
Diskette boot control. Choose “Disabled” to use the system as a
dedicated workstation network node. Choose “Enabled” if a diskette
drive is installed and you want to be able to boot the system from that
drive.
After Setup is run you may want to change jumper J1 to position A and lock
the computer cover with the key lock. This changes the operating mode to
user mode and protects the computer’s configuration.

PSB No: S-0133
Page: 3 of 4
SPECIFICATIONS
ROM-resident SETUP Utility
Copyright (c) SEIKO EPSON CORP. 1990
Permanent parameters:
Base memory
Coprocessor 640 KB
Not installed
User-defined parameters:
lime
Date
Power-on password
14:59:19
07-26-91
Not set (If desired, enter password here)
Diskette drive B
Diskette boot control
Speaker
Initial num lock
Keyboard repeat rate
Network server mode
Serial
Parallel
User-selectable parameters:
Hard disk type of drive 1
Hard disk type of drive 2
Extended memory
Display type
Processor speed
Diskette drive A
00 (Select 0-63)
00 (Select 0-63)
384KB (Selectable in 128K increments)
EGA, MCGA, VGA, or other
CGA - 49 columns
Monochrome
High/Auto/Low
No drive installed or disabled
5 1/4” 360 KB diskette drive
5 1/4” 1.2 MB diskette drive
3 1/2” 729 KB diskette drive
3 1/2" 1.44 MB diskette drive
Same options as above
Enabled/Disabled
Enabled/Disabled
On/Off
Normal/Fast/Slow
Disabled (needs power-on
Enable password to enable)
Primary/Secondary/Disabled
Primary/Secondary/Disabled

PSB No: S-0133
Page: 4 of 4
COMPATIBILITY WITH NIC CARDS
System configuration:
BIOS: CTRTD-1, CTRT-2 (version 1.57)
DOS: MS-DOS 3.30
Video: built-in
The following cards have been tested successfully with the system used as a
workstation:
MANUFACTURER/CARD NOVELL NETWORK CARD SETTINGS
VERSION
Standard Microsystems Corp. 3.11
ARCNET PC110
8 bit, with Novell boot
S1: 2,3 off
S2: 2,6 & 9 on
JP3 on, JP1 & JP2 off
ROM (driver v2.11)
#881012 (IRQ2, I/O 2E0,
RAM D000:0)
Novell Inc.
Ethernet NE-1000A 8 bit
2.2
W1-W8: 2-3 (thin cable)
W9, W10 jumpered (l/O
300)/no boot ROM (IRQ3,
l/O 300, no DMA/RAM)

EPSON
Product Support Bulletin
Subject: Equity 386SX PLUS Questions and Answers
Date: 4/3/91
Page(s): 1 of 9
PSB No: S-0131
Originator: DS/MT
GENERAL:
Q1.
What microprocessor does the Equity 386SX PLUS use?
A.
The Equity 386SX PLUS utilizes the Intel 80386SX-16 microprocessor. Use of
this CPU gives you 386 performance and compatibility in a 16-bit based
computer architecture.
Q2.
At what speed does the Equity 386SX PLUS operate?
A.
The Equity 386SX PLUS operates at either 16MHz or 8MHz. The speed can
be set by using the following keyboard commands:
CTRL ALT + = 16 MHz (High Speed)
CTRL ALT -
= 8 MHz (Low Speed)
CTRL ALT * =Automatic speed mode set (This is when the floppy
disk drive is accessed.)
There is also an ESPEED utility that can be run at the command prompt as
follows:
ESPEED /H = Switch to high speed.
ESPEED /L = Switch to low speed.
ESPEED /A = Enables Automatic speed switching.
lf you run ESPEED with no parameters the following message is displayed:
Epson Speed control utility Version X.XX
Copyright (c) SEIKO EPSON CORP. 1990
Usage: ESPEED [/H] [/L] [/A]
/H = set high speed (no auto speed)
/L = set low speed (no auto speed)
/A = set auto speed