321 Studios 4SX 25, 4DX 33, 4DX2 50 User Manual

EPSON Endeavor 4SX/25, 4DX/33, and 4DX2/50

pourer

(SPEED) light

110/220 VAC switch

power keyboard
inlet port

hard disk
access light

diskette
drive

hay for hard
tape, CD-ROM, or other drive

mouse
port

disk.

diskette,

option card slots

serial serial
port 1 port 2

\

parallel
port port

power
bWon

VGA
monitor

Memory

ROM

Video RAM

Shadow RAM

Cache

Math
coprocessor

Clock/calendar

Controllers

To select low speed, press the Ctrl, Alt,
and - keys simultaneously. To select
high speed, press the Ctrl, Alt, and + keys
simultaneously. (Use the - or + key on the

numeric keypad.)

4MB RAM standard on a SIMM;
expandable using 1MB, 4MB, or 16MB
SIMMs to 32MB (maximum); SIMMs must
be 36-bit, fast-page mode type with 70ns
(or faster) access speed

128KB system BIOS, video BIOS, and
SETUP code located in EPROM on main
system board

512KB or 1MB DRAM on main system
board; 512KB configuration expandable
to 1MB

Supports shadowing of system and video

BIOS ROM into RAM

8KB of internal cache (built into the
microprocessor)

On 4DX/33 and 4DX2/50 systems, math
coprocessor built into the microprocessor;
optional 487 upgrade available for 4SX/25
system

Real-time clock, calendar, and CMOS
RAM socketed on main system board with
built-in battery backup

Computer Specifications

CPU and Memory

32-bit CPU

System speed

4SX/25:

Intel® i486SX, 25 MHz
microprocessor; can be replaced with
optional 487SX/25 or ODP486-25

OverDriveT”

processor

4DX/33: Intel i486DX, 33 MHz

microprocessor; can be replaced with
optional ODP486-33 OverDrive processor

4DX2/50: Intel i486DX2, 50 MHZ

microprocessor
High and low speeds available; high speed

depends on CPU (25 MHz, 33 MHz, or

50

MHz), low speed is simulated 8 MHz
speed; speed selection through keyboard
command; 0 wait state memory access at
highspeed

Video

Diskette

Hard disk

Interfaces

Monitor

Parallel

Serial

Cirrus® VGA controller on main system
board; provides resolutions up to
1024 x 768

Controller on main system board supports
up to two diskette drives or one diskette
drive and one tape drive

Interface on main system board supports
up to two IDE hard disk drives with
built-in controlIers

VGA interface built into main system
board for analog or multifrequency VGA

monitor; 15-pin, D-shell connector

One standard &bit parallel, uni- or bi­directional interface built into main system

board; I/O address selectable through
SETUP; 25-pin, D-shell connector

Two RS-232C, programmable,
asynchronous interfaces built into main
system board; 9-pin, D-shell connectors

4/1/93

EPSON Endeavor-1

EPSON Endeavor 4SX/25, 4DX/33, and 4DX2/50

Keyboard

Mouse

Option slots

Speaker
Alternate VGA

Mass Storage

Horizontal
mounts

Vertical

mount

PS/2 compatible keyboard interface built
into main system board; num lock setting
selectable through SETUP; 6-pin, mini DIN
connector

PS/2 compatible mouse interface built into

main system board; 6-pin, mini DIN

connector

Four 16-bit (or 8-bit) I/O expansion slots,
ISA compatible, 8 MHz bus speed; three
slots accommodate any size card,
bottom slot can hold reduced size card
(4.4 inch/l 10 mm)

Internal
IBM compatible VGA pass-through

interface built into main system board;
26-pin connector

Three drives maximum (two horizontal
mounts and one vertical mount),
configurable using the following:

Up to two externally-accessible,

half-height horizontal mounts; each

horizontal bay can accommodate one

54/4-&h

form factor diskette, tape,
CD-ROM, or other drive, or one 3!4-inch
form factor hard disk, diskette, tape,
CD-ROM, or other drive with

S&inch

mounting frames attached

One internal third- or half-height vertical

mount; vertical bay can accommodate one

3!&inch

form factor hard disk or other

drive

SETUP

Program

Stored in ROM; accessible by pressing the
Delete key at the SETUP prompt during boot

Video Modes

1

Mode 1 Resolution
VGA

* Hi-Color

640x480 16
640x480 256
640x480 32, 768*
640x480 65, 536*
640x480
800x600 16
800x600 256
800x600 32, 768*
800x600 65, 536*

1024x768 16
1024x768 256

** TrueColor

1

Colors

16, 777, 216**

Memory required

512KB
512KB

1MB
1MB

1MB
512KB
512KB

1MB

1MB
512KB

1MB

Power Supply

Type

Input ranges 98 to 132 VAC and 180 to 264 VAC,

Maximum
outputs

Frequency
Cables

145 Watt, fan cooled

switch-selectable voltage
+5 VDC at 18 Amps, +12 VDC at 4.0 Amps,

-5 VDC at 0.3 Amps, -12 VDC at 0.3 Amps
47 to 63 Hz
Two to main system board; four to mass

storage devices

Option Slot Power Limits

Maximum current +5 Volts
For

each slot 7 Amps 1.5 Amps 0.5

For all four slots

16 Amos 3 Amos 0.5

+12 Volts

-5 Volts and -12 Volts
Amps
Amps

Diskette drives

5.25-inch, 1.2MB (high-density)

3.5-inch, 1.44MB (high-density)

5.25-inch, 360KB (double-density)

3.5-inch, 720KB (doubledensity)
Combo 5.25-inch, 1.2MB/3.5-inch, 1.44MB
(highdensity); combines two diskette
drives in one

Hard disk
drives

341~inch

third- or half-height size; the first mounted

vertically, second mounted horizontally

Other devices

Half-height tape drive, CD-ROM drive, or
other storage device;
or
mounting frames attached

Keyboard

Detachable, two-position height; 101 or 102

sculpted keys; country-dependent main

typewriter keyboard; numeric /cursor

control keypad; four-key cursor control

keypad; 12 function keys

EPSON Endeavor-2

form factor hard disk drive(s),

3X+inch

5%inch

form factor with

form factor

S!@nch

Environmental Requirements

Physical Characteristics

Width

Depth

Height 4.8 inches (120 mm)
Weight

4/1/93

14.8 inches (370 mm)

16.5 inches (412 mm)

16.7 lb (7.5 kg) with one diskette drive and
one hard disk, without keyboard

Main System Board Diagram

EPSON Endeavor 4SX/25, 4DX/33, and 4DX2/50

4/1/93 EPSON Endeavor-3