Epson Endeavor 486C Product Support Bulletin

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EPSON

EPSON AMERICA, INC.

Product Support Bulletin
Subject:

EPSON Endeavor C and Sound Blaster Discovery CD 16

Date: 04/08/94
Page(s): 1 of 5

PSB No: S-0171
Originator: JAM

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:

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 bytes in 6 hidden files
163840 bytes 68 directories
78866432 bytes in 1876 user files
21442560 bytes available on disk
2048 bytes in each allocation unit
51033 total allocation units on disk
10470 available allocation units on disk
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:

Jumper position:

Setting used:

Base I/O address

IOS0 closed

220( H)ex

Midi address

IOS1 closed

330( H)ex

Board Interrupt

IS0 open
IS1 closed

IRQ5

8-bit DMA channel

DAS0 open
DAS1 closed

Channel 1

16-bit DMA channel

DBS0 closed
DBS1 closed

Channel 5

Joystick port

JYEN closed

Enabled

Audio Output Amp

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

Audio amplified internally:
no external amp needed

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. From the factory the drive ID is set to 0. This jumper is on the rear of the
drive between the power connector and the data/ribbon cable.

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
5

DMA channels:
1,5

DSP Version:
4.05

The bold face values above are typical for the default configuration. The Sound
card passed all of the tests listed below:
2-operator FM Music
4-Operator FM Music
8-Bit Sound
16-Bit Sound
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. Upon completion, the user is prompted to re-boot the system so that the
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. Scroll to the C:\SB16\PLAYCD
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.

PSB No: S-0171
Page: 5 of 5
9.

MultiMedia Kit Applications tested:
1. Aldus PhotoStyler SE
2. San Diego Zoo Presents... The Animals
3. Software Toolworks Multimedia Encyclopedia
4. Just Grandma and Me - Broderbund
5. Where in the world is Carmen SanDiego?

Ok
Ok
Ok
Ok
Ok

Miscellaneous packages tested:
6.
7.
8.
9.

DOS Version “Eye of the Beholder II”
DOS Version “Wolfenstein 3-D’
MS Dinosaurs for Windows
DOS Version ‘Battle Chess”

Ok
Ok
Ok
Ok

10. Company Address:
Creative Labs Inc.
1901 McCarthy Boulevard,
Milpitas, CA 95035
Phone:
Fax:
BBS:
Baud:
Data bits:
Parity:
Stop bits:

408 428-6622
408 428-6633
408 428-6660
300 to 14400 (V.32N.42 bis)
8
none
1

Misc: (405) 742-6622 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. The issue is NOT problem on this system. A large
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.

EPSON

EPSON AMERICA, INC.

Product Support Bulletin
Subject: Epson Endeavor 486C and Media Vision Fusion CD 16.
Date: 10/08/93
Page(s): 1 of 5

PSB No: S-0165
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:
Memory:
BIOS Rev:
FDD:
FDC:
HDD:
HDC:
Video:
Display:

2.

Epson Endeavor 486C
[ Configured System / DOS and Windows loaded ]
4.0 Mb Standard
AMI/Seiko Epson Corp.
Mitsumi D359T3, 3.5" 1.44MB disk drive
Integrated on Main Logic Board
Conner CP-30174E
Integrated on Main Logic Board
Integrated on Main Logic Board
[ External VGA port provided on rear of unit ]
Epson Professional Series VGA monitor

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
Total Number of Blocks
User Data Blocks
Data Transfer Rate
Burst Transfer Rate
Seek Time
Hard Error Rate
Memory Buffer
Photo CD Compatibility

7.

Audio Section
Sampling Frequency
Quantifying Bit Number
Number of Channels
Frequency Response
Dynamic Range
S/N Ratio
Total Harmonic Distortion
Channel Separation

8.

680Mbytes/disc (Maximum)
333Kblocks/disc (Maximum)
2048bytes/sec.
300Kbytes/sec.
1.5Mbytes/sec.
350msec.
Below 10 (After error correction)
64K bytes
Multisession Photo CD/Single session Photo CD

44.1 kHz
16 bit linear
2
20Hz through 20kHz
80dB
90dB
0.05%
65dB (1kHz)

General Specifications
Power Supply
Dimensions (WxHxD)

Accessories

5V 0.55A, 12V 1.0A
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.
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.

PSB No: S-0165
Page: 5 of 5
13. Products tested:
1.
2.
3.
4.
5.
6.

DOS Musicbox & volume control software PAS
Ok
Windows Pocket Recorder & Pro Mixer
Ok
Windows Pocket CD player
Ok
CD Version "WingCommander II"
defective CD media
CD Version "Underworld - The Stygian Abyss"
Ok
DOS Version "Eye of the Beholder II"
Ok

14. Company Address:
Media Vision Inc.
1385 Laurelview Court
Fremont, CA 94538
Phone: 510 770-8600
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: 510-770-8648

EPSON AMERICA, INC.

Product Support Bulletin
Subject:

Common Questions and Answers for the Epson Endeavor 486C Computers

PSB No: S-0164
Originator: MTD

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. In addition to the performance
that these systems offer, users will appreciate the convenience of a small footprint, and
complete system integration. Key features include:
l

l

Choice of Intel 486SX/25, 486DX/33 or 486DX2/50 processor
Built-in math coprocessor (4DX/33 and 4DX2/50); math coprocessor support in the
4SX/25 model
TM

l

Intel OverDrive

l

Zero Insertion Force (ZIF) socket for easy processor upgrades

l

8KB internal cache (built-in CPU)

l

l

l

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

0KB SRAM secondary cache installed on main system board;
upgradable up to 256KB using 8KB or 32KB SRAM (optional)
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
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

l

l

l

4MB Base RAM, parity checked. 0 wait states; expandable to 36MB
with SIMMS on main board
VGA video (512KB on main board; upgradeable to 1 MB) Cirrus logic
GD5442 video display controller
Alternate VGA feature connector for additional graphics capabilities
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
TM

l

Bundled with MS-DOS® 6.0, Microsoft® Windows 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

l

l

Home office and small-business users seeking maximum performance
at today’s low prices.
Work at home users who need an efficient and cost-effective system
that’s compatible with all their business software.
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.

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).

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

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.

STATUS PAGE
- 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.

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.

Q10.

What type of RAM chips are used to upgrade the video memory to a
full 1MB on the Epson Endeavor 486C computer?

A.

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:

Supported Video ZIP Chips
MANUFACTURER
Goldstar®
Micron®
Samsung®

PART NUMBER
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

Colors

VGA
Extended,
512KB memory required

640 x 480
640 x 480
640 x 480
640 x 480
800 x 600
800 x 600
640 x 480
800 x 600
800 x 600
1024 x 768
1024 x 768
1024 x 768

16
256
32,768*
65,536*
16
256
16,777,216**
32,768*
65,536*
16
256
256

Extended,
1 MB memory required

Memory
Rewired
512KB
512KB
512KB
512KB
512KB
512KB
1MB
1MB
1MB
1MB
1MB
1MB

Note: “*” indicates a Hi-Color mode and “**” indicates True Color mode.
Q12.

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.

PSB No: S-0164
Page: 7 of 10

MEMORY
Q13.

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

A.

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.

Q14.

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

A.

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

PSB No: S-0164
Page: 8 of 10
MEMORY (continued)
Supported SlMMs

CACHE
Q15. Can the Endeavor 486C computers include secondary cache?
A.

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

Bank 1

U15

U16

4x8KB
4x8KB
4x32KB
4x32KB

0
4x8KB
0
4x8KB

1x8KB
1x8KB
1x32KB
1x32KB

1x8KB
1x8KB
1x32KB
1x32KB

PSB No: S-0164
Page: 9 of 10
CACHE (continued)
Supported Cache Memory SRAM DIP Chips
Socket
U15, 16
(15-ns)

U17-20,
56-59
(20ns)

1 Manufacturer 1 Original Manufacturer Part No.
1 Alliance
1 AS7C256-15PC
Winbond
W24257AK-15
Samsung
KM68257BP-15
Micron MT5C42568-15
Alliance
AS7C256-20PC
Winbond
W24256(7)AK-20
UM61256-20
UMC
Samsung
KM68257BP-20
Micron
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

PSB No: S-0164
Page: 10 of 10
MASS STORAGE
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 (v3.11)
Netware Lite (v1.1)
DR DOS (v6.0)
Novell Print Server (v1.21)
Netware Access Server (v1.3)
LAN Workplace for DOS (v4.01)

NetWare 3270 LAN Workstation (v2.0)
OnLAN/PC (v1.3)
NetWare Link/64 (v1.1)
NetWare Link/T1 (v1.1)
NetWare Link/X.25 (v1.00)
NetWare Asyn Remote Router (v1.2a)
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 #

1.149A

DESC

TYPE

LOC

REASON

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



---

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Title                           : Endeavor 486C - Product Support Bulletin(s)
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