Epson EL 486UC Manuel d'information sur les produits

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button

monitor cable

AC outlet

AC inlet

COM1 COM2 Parallel

Computer Specifications

CPU and Memory

32-bit CPU

Intel 80486SX/25 microprocessor;

upgradable to 486SX/33, 486DX/33,

486DX2/50, or 486DX2/66

System speed

Fast and slow speeds available; fast speed

is 25 MHz or the speed of your upgraded

microprocessor, slow speed is 8 MHz;

speed selection through SETUP program

and keyboard commands

To select

and - keys simultaneously. To select

fast speed, press the Ctrl, Alt, and + keys

simultaneously. (Use the - or + key on the

numeric keypad.)

hard disk or diskette

drive bay

slow

speed, press the Ctrl,

Memory

power

ROM

Video RAM

Shadow RAM

Cache

Clock/calendar

Controllers

Video

Diskette

Hard disk

Game

Interfaces

Monitor

Parallel

serial

Game

Alt,

Keyboard

8/15/93

Epson EL 486UC

4MB RAM standard on a SIMM;

expandable to 32MB using 1MB, 4MB,

8MB, and 16MB SIMMs; SIMMs must be

tin-plated, 72-pin, 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 DRAM on main system board;

expandable to 1MB using 70ns or 80ns,

256KB

4 bit, 20-pin, DIP DRAM chips

Supports shadowing of system and video

BIOS ROM into RAM

8KB of internal cache (built into the

microprocessor); supports 32KB or 128KB

of external cache using 28-pin, 8 x 8, 20ns

DIP chips or 28-pin, 32 x 8, 20ns DIP chips

Real-time clock, calendar, and CMOS

RAM contained in 82C206 controller on

system board with NiCad battery

main

backup

Trident TVGA 8900C VGA controller on

main system board; provides resolutions

up to 1024 x 768 in 16 colors (up to

1024

768 in 256 colors with 1MB of video

memory)

Controller on main system board supports

up to two diskette drives, maximum

Interface on main system board supports

up to two IDE hard disk drives,

maximum, with built-in controllers on the

hard disk drive itself

VGA interface built into main system

board for analog or multifrequency VGA

monitor; 15-pin, D-shell connector

One standard 8-bit parallel, unidirectional

interface built into main system board;

25-pin, D-shell connector

Two RS-232C, programmable,

asynchronous interfaces built into main

system board; 9-pin, D-shell connectors

One game port interface built into main

system board; 15-pin, D-shell connector

PS/2 compatible keyboard interface built

into main system board; num lock setting

selectable through SETUP; 6-pin, mini

DIN connector

Epson EL 486UC-1