Epson Endeavor 486C Product Support Bulletin

EPSON AMERICA, INC.

Product Support Bulletin

EPSON

Subject:
Date: 04/08/94

Page(s): 1 of 5

The purpose of this bulletin is to provide information regarding the installation and
compatibility of the Sound Blaster Discovery CD 16.

1.

Hardware Configuration:
CPU:

Memory:

Additional:

BIOS Rev:
FDD:
HDC:
HDD:

Video:

Display:

EPSON Endeavor C and Sound Blaster Discovery CD 16

PSB No: S-0171
Originator: JAM

Product Code

Epson Endeavor C, 80486sx/25 Processor

4.0 Mb Standard
not applicable
AMI/Seiko Epson Corp. D486-6080-112593-KF
Mitsumi D-359T3, 1.44Kb 3.5" disk drive
Integrated on Main Logic Board
Conner CP-3104
Cirrus GD5442 Video chip, 512KB, Upgradeable to 1 MB
[ External VGA port provided on rear of unit ]
Epson Professional Series VGA monitor

(A804241)

2. Operating Systems:
Microsoft DOS Version 6.2

Microsoft Windows Version 3.1
Microsoft DOS was loaded in a default mode.

3. Windows Installation:
Microsoft Windows Version 3.1 installed. ‘Express Setup’ (Microsoft

Recommended) installation routine used for the install.

4. Compatibility:

The system is compatible with the Sound Blaster Discovery CD 16 Multimedia

system by Creative Labs Incorporated using Microsoft DOS version 6.2.

Installation time approximately 30 minutes.

The system was also tested with Microsoft DOS version 6.0 and Microsoft DOS

version 5.0. The Sound Blaster Discovery CD 16 Multimedia product is

compatible with those operating systems.

PSB No: S-0171
Page: 2 of 5

The following information is provided for reference purposes only. The
AUTOEXEC.BAT and the CONFIG.SYS files are actual examples of the tested
system.

5.

Memory Allocation information,

c:\>chkdsk
Volume MS-DOS-6 created 12-16-1993 10:OOa

Volume Serial Number is 1A259203

104515584 bytes total disk space

4042752

163840
78866432
21442560 bytes available on disk

51033 total allocation units on disk

10470 available allocation units on disk

bytes in 6 hidden files
bytes 68 directories
bytes

in 1876 user files

2048 bytes in each allocation unit

655360 bytes total memory
532080 largest executable program size

6. AUTOEXEC.BAT file information:

@ECHO OFF
SET BLASTER=A220 I5 D1 H5 P330 T6
SET SOUND=C:\SB16
C:\SB16\SB16SET /M:220 /VOC:220 /CD:220 /MIDI:220 /LINE:220 /TREBLE:0
C:\SB16\SBCONFIG.EXE/S
C:\WINDOWS\SMARTDRV.EXE /X

PROMPT $p!$g

PATH C:\WINDOWS;C:\DOS;
SET TEMP=C:\DOS
C:\DOS\MSCDEX.EXE /D:MSCD001 /V /M:15
C:\DOS\MOUSE
C:\

7.

CONFIG.SYS file information:

DEVICE=C:\DOS\SETVER.EXE

DEVICE=C:DOS\HIMEM.SYS

DOS=HIGH

FILES=10
STACKS=9,256
DEVICE=C:\SB16\DRV\SBCD.SYS /D:MSCD001 /P:220
SHELL=C:\DOS\COMMAND.COM C:\DOS\ /p

PSB No: S-0171
Page: 3 of 5

8. General Installation Tips:
Hardware:
The Discovery CD 16 uses a Sound Blaster 16 sound card. The product was

used in its default configuration. The following are the factory defaults:

Feature:

Base I/O address
Midi address

Board Interrupt

8-bit DMA channel

16-bit DMA channel DBS0 closed

Joystick port
Audio Output Amp

These settings can be found in the ‘GETTING STARTED’ manual that comes
with the product. The system uses a Matsushita model CR-563-B CD-ROM

drive.
drive between the power connector and the data/ribbon cable.

From the factory the drive ID is set to 0. This jumper is on the rear of the

Jumper position:

IOS0 closed
IOS1 closed
IS0 open

IS1 closed
DAS0 open

DAS1 closed

DBS1 closed

JYEN closed

OPSL pins 2 & 3 closed
OPSR pins 2 & 3 closed

Setting used:
220( H)ex
330( H)ex

IRQ5

Channel 1

Channel 5

Enabled

Audio amplified internally:

no external amp needed

PSB No: S-0171
Page: 4 of 5

The Discovery CD 16 Multimedia system comes with 5 3.5” diskettes. Three
diskettes are for the sound card, one is for a ‘Text-to-Speech’ application, and
one disk is for the CD-ROM device driver and utilities.

The Sound Blaster files are copied to the hard disk drive by an INSTALL.EXE

utility on disk 1. The utility will prompt the installer for the second and third

disks. The routine will modify the AUTOEXEC.BAT and CONFIG.SYS files.

Upon completion, the user is prompted to re-boot the system so that the
changes can take effect. The utility will also modify the Windows SYSTEM.INI
file. When you run Windows, a SB routine will modify and add the Sound

Blaster utilities to a new Program group. The routine will re-start Windows so
that the changes can take effect. The sound card can be tested in a DOS

environment by running TESTSB16. This file is located in the sound blaster

sub-directory SB16.
The utility will test the existence and functionality of the following areas:

I/O Address: IRQ:

220H

The bold face values above are typical for the default configuration. The Sound

card passed all of the tests listed below:

The CD-ROM files are copied to the hard disk drive by an INSTALL.EXE utility

on the disk 1. The routine will modify the AUTOEXEC.BAT and CONFIG.SYS
files.

changes can take effect. To install CD-ROM into Windows, the user must

manually add the ‘QuickCD’ to the Sound Blaster 16 program group. Open the

‘Sound Blaster 16’ group, and from Program Manager File select New. Program

Item should have the bullet marked. Select the OK button. From the Program

Item Properties box select the Browse button.
sub-directory. Select QCD.EXE as the file name and click the OK button. This
bring you back to the Program Item Properties box. For a Description enter
QCD. Click on the Change Icon button and choose a CD symbol for the icon
button. Click on the OK button and the QuickCD icon is present in the Sound
Blaster 16 program group. Insert an analog/music CD into player. If you click
on the CD icon without a disc installed you will get the following warning:
‘Ensure that you have a CD audio ready in your drive and CD MCI driver
installed in your system. The system is ready for use.

Upon completion, the user is prompted to re-boot the system so that the

5

DMA channels:

1,5

2-operator FM Music
4-Operator FM Music

8-Bit Sound

16-Bit Sound

Scroll to the C:\SB16\PLAYCD

DSP Version:

4.05

9.

MultiMedia Kit Applications tested:

PSB No: S-0171
Page: 5 of 5

1. Aldus PhotoStyler SE

2. San Diego

3. Software Toolworks Multimedia Encyclopedia

4. Just Grandma and Me - Broderbund

5. Where in the world is Carmen SanDiego?
Miscellaneous packages tested:

6. DOS Version “Eye of the Beholder II”

7. DOS Version “Wolfenstein 3-D’

8. MS Dinosaurs for Windows

9. DOS Version ‘Battle Chess”

10. Company Address:
Creative Labs Inc.

1901 McCarthy Boulevard,
Milpitas, CA 95035

Phone:
Fax:
BBS:
Baud:
Data bits: 8
Parity:
Stop bits: 1

Zoo

Presents... The Animals

408 428-6622
408 428-6633
408 428-6660
300 to 14400 (V.32N.42 bis)

none

Ok
Ok
Ok
Ok
Ok

Ok
Ok
Ok
Ok

Misc: [phone] Technical Support

11. Anomalies/Issues:
This Product Support Bulletin was specifically generated to address concerns

about compatibility of the Sound Blaster Kit in this system running under DOS

6.0. As documented the system is fully functional in that operating environment.
Concern was also expressed about using the DOS 6.0 memory manager

EMM386.EXE. Various packages that must run in expanded memory were

tested and experienced no errors.

Note: There is a known compatibility issue recording a digital file from any audio

input device at a sampling rate of 44Khz. The problem is apparent on
various PCs.
digital file was created using SB 16 Mixer and SB Wave Studio from
Windows. The file was approximately 20Mb large after sampling a

dynamic ROCK source. Playback of the file rendered no dropouts of the

original material. The process is compatible on this system.

The issue is NOT problem on this system.

A large

EPSON AMERICA, INC. EPSON

Product Support Bulletin

Subject: Epson Endeavor 486C and Media Vision Fusion CD 16.
Date: 10/08/93 PSB No: S-0165

Page(s): 1 of 5 Originator: MTD

The purpose of this bulletin is to provide information regarding the installation and compatibility
of the Media Vision Fusion CD 16.

1. Hardware Configuration:
CPU: Epson Endeavor 486C

[ Configured System / DOS and Windows loaded ]
Memory: 4.0 Mb Standard
BIOS Rev: AMI/Seiko Epson Corp.
FDD: Mitsumi D359T3, 3.5" 1.44MB disk drive
FDC: Integrated on Main Logic Board
HDD: Conner CP-30174E
HDC: Integrated on Main Logic Board
Video: Integrated on Main Logic Board

[ External VGA port provided on rear of unit ]
Display: Epson Professional Series VGA monitor

2. Operating Systems:
Microsoft DOS Version 6.0.

Microsoft Windows Version 3.1 provided with Progression 4 in shipping box.

3. Windows Installation:
Microsoft Windows Version 3.1 installed. 'Express Setup' (Microsoft Recommended)

installation routine used for the install.

4. Compatibility:
The system is compatible with Microsoft DOS version 6.0. The system is compatible

with the Fusion CD 16 Multimedia system by Media Vision Incorporated. Installation
time approximately 30 minutes.

5. Product Specifications and Settings:
Specifications and settings on page 2 of 5 and 3 of 5.

PSB No: S-0165
Page: 2 of 5

6. Specifications for internal CD-ROM Reader Model Number CDR-55JD
User Data Capacity 680Mbytes/disc (Maximum)

Total Number of Blocks 333Kblocks/disc (Maximum)
User Data Blocks 2048bytes/sec.
Data Transfer Rate 300Kbytes/sec.
Burst Transfer Rate 1.5Mbytes/sec.
Seek Time 350msec.
Hard Error Rate Below 10 (After error correction)
Memory Buffer 64K bytes
Photo CD Compatibility Multisession Photo CD/Single session Photo CD

7. Audio Section
Sampling Frequency 44.1 kHz

Quantifying Bit Number 16 bit linear
Number of Channels 2
Frequency Response 20Hz through 20kHz
Dynamic Range 80dB
S/N Ratio 90dB
Total Harmonic Distortion 0.05%
Channel Separation 65dB (1kHz)

8. General Specifications
Power Supply 5V 0.55A, 12V 1.0A

Dimensions (WxHxD) 14.9 x 4.3 x 21.0cm

5-7/8 x 1-11/16 x 8-9/32 in.

1.4kg 3.1 lbs.

Accessories User's Manual (1), SCSI Cable (1),

Power Y-Cable (1), Mounting Rails (2),
Screws (4), CD-ROM Cartridge (1)

PSB No: S-0165
Page: 3 of 5

The following information is provided for reference purposes only. The AUTOEXEC.BAT and
the CONFIG.SYS files are actual examples of the tested system.

9. Memory Allocation information:

c:\>chkdsk

Volume MS-DOS_6 created 04-21-1993 9:03a
Volume Serial Number is 1A95-7205

121131008 bytes total disk space
4096 bytes in 2 hidden files
90112 bytes 32 directories
45658112 bytes in 1200 user files
75378688 bytes available on disk

2048 bytes in each allocation unit
59146 total allocation units on disk
36806 available allocation units on disk

655360 bytes total memory
616176 largest executable program size

10. Autoexec.bat file information:

c:\>type autoexec.bat

C:\FUSION16\MSCDEX.EXE /D:MVCD001 /M:10 /E /V /L:D
LH /L:1,56928 C:\DOS\MOUSE
LH /L:0;1,42384 /S C:\WINDOWS\SMARTDRV.EXE
@ECHO OFF
PROMPT $p$g
PATH C:\WINDOWS;C:\DOS;C:\FUSION16;
SET TEMP=C:\DOS
SET BLASTER=a220 d1 i7 t3
C:\

11. Config.sys file information:

c:\>type config.sys

DEVICE=C:\DOS\HIMEM.SYS
DEVICE=C:\DOS\EMM386.SYS RAM HIGHSCAN
BUFFERS=15,0
FILES=15
DOS=UMB
LASTDRIVE=E
FCBS=4,0
DEVICE=C:\DOS\SETVER.EXE
DOS=HIGH
STACKS=9,256
SHELL=C:\DOS\COMMAND.COM C:\DOS\ /p
DEVICEHIGH=C:\FUSION16\MVSOUND.SYS D:5 Q:3 J:1 S:1,220,3,7 M:0
DEVICEHIGH=C:\FUSION16\SLCD.SYS /D:MVCD001 /B:1F88 /M:P

PSB No: S-0165
Page: 4 of 5

12. General Installation Tips:
The Media Vision Pro Audio Spectrum card comes with a quick installation diskette that

will install both the DOS and Windows files necessary to use the sound card. The
process will automatically update the autoexec.bat and config.sys files and alter the
Windows SYSTEM.INI file. The installation process is transparent and seamless.

The process transfers an audio CD program for DOS named 'Musicbox' and an auxiliary
volume control utility 'PAS' (Pro Audio Spectrum). During the process, two CD Rom
packages are transferred to the hard disk drive: Compton's Family Encyclopedia and a
game 'Where in the world is Carmen San diego? - Deluxe Edition. Either package can
be run from the hard disk drive or from the CD ROM itself. Instructions on how to start
either package are displayed prior to ending the installation process.

The other two DOS entertainment packages, Wing Commander II and Ultima
UnderWorld, are not automatically loaded to the hard disk drive with the above process.
The games are transferred by mounting to the CD ROM, d:\, and running an installation
batch file. To install Wing Commander II, type d:\winstall. To install Ultima Underworld,
type d:\uinstall. Upon starting either game, the software prompts the user for hardware
configuration information. You pick the sound card you are going to use (Soundblaster
Compatible), the DMA channel (DMA 5), and whether to use Expanded Memory (Yes if
you want digital voice output). Wing Commander is started by typing WC2. Ultima
Underworld is started by typing UW.

For Windows applications, installation installs Pocket Recorder files to the Windows
sub-directory. Pocket Recorder is available from the Pocket Tools Program Group. To
use the CD ROM as an audio CD player it will be necessary to create a program item in
the Media Player Group. Instructions on how to install it are not forth-coming. The
procedure is available in the Utilities guide.

After the CD player is installed, using the device is as easy as using a standard audio
device. Volume, balance, bass and treble controls are available as well as track usage.
All functions worked flawlessly.

Note: There is a publically known compatibility issue recording a digital file from any

audio input device at a sampling rate of 44Khz. The problem is apparent on
various PC's. This issue is NOT a problem on this system. A large digital file
was created using Pocket Recorder and Pocket Mixer from Windows CD player.
The file was approximately 20Mb large after sampling a dynamic 'ROCK' source.
The conversion of the source signal to digital file is lengthy and should not be
interrupted while the icon is processing the file. Playback of the file rendered no
dropouts of the original material. The process is compatible on this system.

13. Products tested:

1. DOS Musicbox & volume control software PAS Ok

2. Windows Pocket Recorder & Pro Mixer Ok

3. Windows Pocket CD player Ok

4. CD Version "WingCommander II" defective CD media

5. CD Version "Underworld - The Stygian Abyss" Ok

6. DOS Version "Eye of the Beholder II" Ok

14. Company Address:
Media Vision Inc.

1385 Laurelview Court
Fremont, CA 94538

Phone: [phone]
MISC: 800 638 2807 Technical Support
MAIN: 800 348-7116
BBS: 510 770-0527, 300-14.1 baud, 8-bits, no parity, 1 stop bit.
FAX: [phone]

PSB No: S-0165
Page: 5 of 5

EPSON AMERICA, INC.

Product Support Bulletin

Subject:

Common Questions and Answers for the Epson Endeavor 486C Computers

Date: 10/08/93
Page(s): 1 of 10

GENERAL

Q1. What is the Epson Endeavor 486C computer?

A.

The Epson Endeavor 4SX/25C, 4DX/33C and 4DX2/50C represent an enhancement to
the new Endeavor family of entry-level computer products. Along with an affordable

price, the new Endeavor series offers Intel™ i486™ processing power and upgrade
solutions for a wide range of computing applications.
that these systems offer, users will appreciate the convenience of a small footprint, and
complete system integration. Key features include:

l Choice of Intel 486SX/25, 486DX/33 or 486DX2/50 processor

PSB No: S-0164
Originator: MTD

In addition to the performance

l Built-in math coprocessor (4DX/33 and 4DX2/50); math coprocessor support in the

4SX/25 model

l Intel OverDrive
l Zero Insertion Force (ZIF) socket for easy processor upgrades
l 8KB internal cache (built-in CPU)
l 0KB SRAM secondary cache installed on main system board;

TM

Support (4SX/25 and 4DX/33)

upgradable up to 256KB using 8KB or 32KB SRAM (optional)

l Small-footprint case incorporates

- Four ISA 16-bit option slots (three full-length, one third-length)

- Three drive bays; two external, one internal

- Built-in Super VGA video support

- Two serial, Bi-directional Parallel, Mouse and Keyboard ports

- Built-in floppy and IDE hard drive controller/interface

l Choice of 120MB Quantum, 170MB Conner or 240MB Quantum Hard

Disk Drive

PSB No: S-0164
Page: 2 of 10

What is the Epson Endeavor 486C Computer?

(continued)

l 4MB Base RAM, parity checked. 0 wait states; expandable to 36MB

with SIMMS on main board

l VGA video (512KB on main board; upgradeable to 1 MB) Cirrus logic

GD5442 video display controller

l Alternate VGA feature connector for additional graphics capabilities
l System and video BIOS can be relocated in shadow RAM for increased

system performance

l ROM based system SETUP
l Password security
l Virus warning abilities included in BIOS
l Bundled with MS-DOS® 6.0, Microsoft® Windows

TM

3.1 and a mouse

(MS-DOS and Windows are pre-loaded on the hard drive)

Q2. What is the target market for this computer?

A.

The Epson Endeavor 4SX/25C, 4DX/33C and 4DX2/50C computers are
targeted at the following markets.

l Home office and small-business users seeking maximum performance

at today’s low prices.

l Work at home users who need an efficient and cost-effective system

that’s compatible with all their business software.

l Businesses in search of a low-cost network node that can handle

current and future applications.

Q3. What interfaces and controllers are integrated on the motherboard?

A.

The Epson Endeavor 4SX/25C, 4DX/33C and 4DX2/50C computers come
standard with a built-in IDE hard disk drive interface, a floppy disk drive
controller, a super VGA video adapter, alternate VGA feature connector,
two serial interfaces, a bi-directional parallel interface, a PS/2 style mouse

port and PS/2 style keyboard port all integrated on the main system board.

PSB No: S-0164
Page: 3 of 10

Q4. What /eve/s of password security are provided with the Epson Endeavor

486C computer?

A.

The Endeavor 486C series of computers offer two levels of password
security to ensure that unauthorized users do not change the system’s
SETUP configuration or obtain access to the system.

- Password security to obtain system access

- Password security to access SETUP menus

CPU

Q5. What microprocessors are being offered with the Epson Endeavor 486C

series computer?

A.

The Epson Endeavor 4SX/25C comes standard with an Intel™ i486SX™
microprocessor (CPU) running at 25MHz. The Epson Endeavor 4DX/33C
comes standard with an Intel™ i486DX™ CPU running at 33MHz. The
Epson Endeavor 4DX2/50C comes standard with an Intel™ DX2/50™ CPU
running at 50MHz. Common features of the different microprocessors
include backward compatibility with the 8088, 8086, 80286, and 80386
CPUs and a built-in 8KB cache. For system flexibility, the built-in CPU
cache can be disabled via SETUP.

The™ i486DX/33 and DX2/50 CPUs contains an on-chip numeric
coprocessor to increase the speed of floating point operations. This
coprocessor is backward compatible with the 387DX and 387SX math
coprocessors and complies to ANSI/IEEE standard 754-1985.

Q6. What processor upgrades are available in the Epson Endeavor 486C

computer?

A.

The Epson Endeavor 4SX/25C computer can be upgraded by installing an
Intel™ i487SX™ or Intel Overdrive CPU in the processor socket. Both of
these CPUs improve system performance by adding a numeric coprocessor
to speed up floating point calculations. The Intel Overdrive CPU doubles
the processor’s internal speed to further increase system performance.

The Epson Endeavor 4DX/33C computer can be upgraded by installing an
Intel Overdrive CPU in the processor socket. Like the Intel Overdrive CPU

for the 4SX/25, the Intel Overdrive CPU for the 4DX/33 also doubles the

processor’s internal speed to further increase system performance.

PSB No: S-0164
Page: 4 of 10

BIOS

Q7. What BIOS comes with the Epson Endeavor 486C computer?

A.

Q8. How is SETUP accessed and what information is contained in setup?

A.

STATUS PAGE

The Epson Endeavor 486C series computers incorporate an AMI/Seiko
Epson BIOS that contains both the system and video BIOS. This BIOS is
contained in a single EPROM device that is installed in a pluggable socket
on the computer’s main system board (motherboard).

To access SETUP, press the “DEL” key after POST (Power On Self-Test)
completes the memory test but before the computer loads the operating
system. There are two pages of setup information.

- System Date and Time

- Floppy Drive Type Selection A: B: (360K, 1.2M, 720K, 1.44M and None)

-

HDD Drive Type Selection C: D: (Type Number or User-Defined)

- Video Type (Not Installed, CGA80, VGA/PGA/EGA, CGA40, and Mono)

- System Speed (Fast/Slow)

-

Boot Sequence (Drive A,C or C/A)

- Floppy Seek (Enable/Disable)

- Virus Protection (Enabled/Disabled)
OPTIONS PAGE

-

Shadow Setup (System, Video or System/Video)

- Keyboard Setup (Test, Numlock On/Off, Rate, and Delay)

- Peripherals Setup
Serial Port Address

3f8h, 2f8h IRQ4/IRQ3 (Com1/Com2, Com1+Com2) or (Disabled)

- Parallel Port Address

378h, 0278h (Uni-LPT1/2 Bi-LPT1/2), or (Disabled)

- PS/2 Mouse (Enabled/Disabled)

- On-B/D FDC Select (Enabled/Disabled)

- IDE HDC Select (Enabled/Disabled)

PSB No: S-0164
Page: 5 of 10

VIDEO

Q9. What video adapter comes standard (built-in) with the Epson Endeavor

486C computer?

A.

Q10.

A.

Supported Video ZIP Chips

The Epson Endeavor 486C series computers utilize a Cirrus GD5422 VGA
graphics controller as its built-in video adapter. These computers include
512KB of video memory which may be upgraded to a full 1 MB of memory
by installing pluggable memory chips.

The Cirrus VGA graphics controller is 100% hardware and BIOS­compatible with IBM® VGA display standards.

What type of RAM chips are used to upgrade the video memory to a

full 1MB on the Epson Endeavor 486C computer?

Increasing the Epson Endeavor 486C series computer’s video memory
requires four 256K x 4 bit, 70ns 20-pin DRAM ZIP (Zig-zag lnline
Package) chips. These chips install on the computer’s main logic board in
sockets VM00, VM01, VM02 and VM03.

To ensure compatibility, we have tested the following DRAM ZIP chips and
confirmed that they operate properly when upgrading the video memory:

MANUFACTURER PART NUMBER
Goldstar®
Micron®
Samsung®

GM71C4256AZ-70
MT4C42562-6, MT4C4256Z-7
KM44C256CZ-6, KM44C256CZ-7

PSB No: S-0164
Page: 6 of 10

Q11.

What video modes are supported by the Epson Endeavor 486C

computer?

List below is a table that shows the Epson Endeavor 486C series
computer’s supported video modes and the memory requirements to obtain
each mode:

Mode Resolution

VGA 640 x 480

Extended,

640 x 480 256

Colors

16

512KB memory required 640 x 480 32,768*

640 x 480 65,536*
800

x 600

800

x 600 256
Extended,
1 MB

memory required 800 x 600 32,768*

640 x 480 16,777,216**

16

800 x 600 65,536*

1024 x 768

16
1024 x 768 256
1024 x 768 256

Memory
Rewired

512KB
512KB
512KB
512KB
512KB
512KB
1MB
1MB
1MB
1MB
1MB
1MB

Note:

Q12.

“*” indicates a Hi-Color mode and “**” indicates True Color mode.

What software video drivers are provided with the Epson Endeavor

486C computer?

There are two diskettes included that feature video drivers for many popular
software programs and also include video utilities. The key drivers included are:

Lotus 1-2-3 Rel. 2.x,3, Lotus Symphony Rel. 2.0, Windows 3.1, WordPerfect 5.1
The VGA video utilities included are: CLMODE and SETRES. These utilities
are useful when customizing system settings such as video modes or refresh
rates.

MEMORY

PSB No: S-0164
Page: 7 of 10

Q13.

A.

Q14.

A.

What is the standard memory configuration and maximum amount of
system memory that can be used in the Epson Endeavor 486C
computer?

The Epson Endeavor 486C series computers come standard with 4MB of
system memory. This memory is soldered on the main system board.

There are two SIMM sockets on the main system board. These sockets
accept 1 MB, 4MB or 16MB SIMMs. Optional SlMMs may be purchased to
increase the computer’s memory up to a maximum of 36MB.

NOTE: The SlMMs used must be 70ns or faster, 32 or 36-bit, 72-pin, fast
page mode type.

What are the valid system memory configurations for the Epson
Endeavor 486C computer?

The following table shows the possible SIMM configurations for the Epson
Endeavor 486C series computers; do not install memory in any other
configuration.

*

Standard memory on the system board

**

SIMMS can occupy either socket

MEMORY (continued)
Supported SlMMs

CACHE

PSB No: S-0164
Page: 8 of 10

Q15.

A.

Can the Endeavor 486C computers include secondary cache?

Yes. The system board is capable of supporting up to 256KB of external

SRAM cache memory.
There are ten CACHE sockets on the main system board. These sockets

accept 8KB or 32KB SRAM chips installed in the sockets of BANK0 and
BANK1. BANK0 must be filled before BANK1.

The SRAM type used for sockets U15 and U16 must match the type
installed in the banks.

Cache size

0KB
32KB
64KB

128KB

256KB

Bank 0

4x8KB

Bank 1

0

U15 U16

1x8KB 1x8KB
4x8KB 4x8KB 1x8KB 1x8KB
4x32KB

0

1x32KB 1x32KB
4x32KB 4x8KB 1x32KB 1x32KB

CACHE (continued)
Supported Cache Memory SRAM DIP Chips

PSB No: S-0164
Page: 9 of 10

Socket
U15, 16

1

Manufacturer 1 Original Manufacturer Part No.

1

Alliance

1

AS7C256-15PC

(15-ns) Winbond W24257AK-15

U17-20,

56-59

(20ns)

Samsung

Micron
Alliance
Winbond

UMC

Samsung

Micron

-

KM68257BP-15

MT5C42568-15
AS7C256-20PC
W24256(7)AK-20

UM61256-20

KM68257BP-20

MT5C42568-15

(Build To Order)

Q16.

What are installable options from Epson?

RAM
VIDEO RAM
SRAM
CHOICE OF FDD’s
CHOICE OF HDD’s
TBU
FAX MODEM
SCANNER I/F
MULTI-MEDIA
SCSI I/F

MASS STORAGE

PSB No: S-0164
Page: 10 of 10

Q17.

What factory floppy and hard disk drive configurations are offered

with the Epson Endeavor 486C computer?

A.

The Epson Endeavor 4SX/25C, 4DX/33C and 4DX2/50C computers are
available in three factory configurations. All three configurations come
standard with a 1.44MB floppy disk drive.

The Epson Endeavor 486C series computers is built to customer’s order
by the factory.

LAN COMPATIBILITY

Q18.

What local Area Networks have been tested on the Epson Endeavor

486C computer?

A.

The system is tested and approved as Novell NetWare “Workstations” with
the following Novell products:

Netware (v2.2) NetWare 3270 LAN Workstation (v2.0)
Netware (v3.11) OnLAN/PC (v1.3)
Netware Lite (v1.1) NetWare Link/64 (v1.1)
DR DOS (v6.0) NetWare Link/T1 (v1.1)
Novell Print Server (v1.21) NetWare Link/X.25 (v1.00)
Netware Access Server (v1.3) NetWare Asyn Remote Router (v1.2a)
LAN Workplace for DOS (v4.01) NetWare Asyn Comm Server (v3.0)

NETWORK BOARDS TESTED

Q19.

What Network boards have been tested on the Epson Endeavor 486C

computer?

TEST PRODUCTS NAME MANUFACTURER

Etherlink II
Etherlink III
Etherlink 16

IBM Token Ring Adapter 16/4

IBM Token Ring Adapter II
NE1000
NE2000
NE2100
RX NET
SMC ARCNET 190ST

3Com
3Com
3Com

IBM
IBM
Novell
Novell
Novell
Novell
SMC

PSB No.: S-0062I
Page: 1 of 18

EQUITY 386/33 PLUS

VER PART # DESC TYPE LOC REASON

031892 Y707590802 AMI 27C512 U29 INITIAL RELEASE

061892 201078300 AMI 27C512 U29 Rapid keystrokes on all areas of the

keyboard may cause a shift key
lock and/or keyboard lockup. In
some rare cases, improper
keyboard timing may cause
intermittent system boot failure.
See ECN No: EQ386/33+-001
(2/5/93).

ENDEAVOR / EQUITY 4

VER PART # DESC TYPE LOC REASON

1.149A AWARD 27C010 U8 INITIAL RELEASE

ENDEAVOR 486C

VER PART # DESC TYPE LOC REASON

053193 1017670 AMI 27C010 U8 INITIAL RELEASE

EL 486 UC

VER PART # DESC TYPE LOC REASON

1.01 451-7010-201 PHOENIX 27C010 U20 INITIAL RELEASE