EPSON Endeavor WG

power (SPEED) hard disk

diskette

p o w e r

light

access light

drive

button

 

hard disk or diskette

 

drive bay

115/230 VAC switch

option card slots

\

 

power

keyboard

serial

’

 

VGA

inlet

port

/

pottl

seria’

\

monitor

 

 

mouse

 

port2

parallel

Port

 

 

port

 

 

port

 

 

 

 

 

 

Computer Specifications

CPU and Memory

32-bit CPU

4SX/33: Intel i486SX, 33 MHz

 

microprocessor; can be replaced with

 

optional 487SX/33 or ODP486-33

 

OverDrive processor

 

4DX2/50: Intel i486DX2, 50 MHz

 

microprocessor; supports future Intel

 

OverDrive processor

 

4DX2/66: Intel i486DX2, 66 MHz

 

microprocessor; supports future Intel

 

OverDrive processor

System speed

High, low, and automatic speeds available;

 

high speed is CPU-dependent (33,50, or

 

66 MHz), low speed is simulated 8 MHz,

 

automatic speed switches from high to low

 

only for diskette drive access; speed

 

selection through SETUP, keyboard

 

command, or ESPEED program; 0 wait

 

state memory access at high speed

Memory

4MB RAM standard soldered on main

 

system board; expandable using 1MB,

 

4MB, 16MB, or 64MB SIMMs to 128MB

 

(maximum); SIMMs must be 36-bit,

 

fast-page mode type with 70 ns (or faster)

 

access speed

ROM

128KB ROM containing system BIOS and

 

video BIOS; 64KB ROM containing SETUP

 

code

Video RAM

1MB video RAM on main system board

Shadow RAM

Automatic shadowing of system and VGA

 

BIOS ROM into RAM; shadow RAM

 

address control selectable through SETUP

Cache

8KB of internal cache (built into the

 

microprocessor); cache testing and address

 

control selectable through SETUP

VirtualCache

Epson proprietary VirtualCache feature

 

automatically creates a “virtual cache”

 

buffer the size of maximum system

 

memory

Math

On 4DX2/50 and 4DX2/66 systems, math

coprocessor

coprocessor built into the microprocessor

Clock/calendar Real-time clock, calendar, and CMOS

 

RAM on main system board; separate

 

battery backup

Controllers

Video

Chips and Technologies Wingine P64200

 

VGA controller on main system board;

 

provides resolutions of 800 x 600 x 64K

 

colors and up to 1024 x 768 x 256 colors

Diskette

Controller on main system board supports

 

up to two diskette drives or one diskette

 

drive and one tape drive

Hard disk

Interface on main system board supports

 

up to two IDE hard disk drives with

 

built-in controllers

Interfaces

Monitor

VGA interface built into main system

 

board for analog or multifrequency VGA

 

monitor; 15-pin, D-shell connector

Parallel

One standard 8-bit parallel, bidirectional

 

interface built into main system board;

 

port assignment and I/O address

 

selectable through SETUP; 25-pin, D-shell

 

connector

7/27/93

EPSON Endeavor WG-1