Category

Video

Video Types Supported

EGA

Video Processor

Unidentified

Highest Resolution Supported

800 x 600

Data Bus Type

8-bit ISA

Memory Type

DRAM

Maximum Onboard Memory

256KB

CONNECTIONS

Purpose

Location

Purpose

Location

Composite display jack

J1

9-pin digital video port

J4

Composite display jack

J2

32-pin feature connector

J5

Light pen connector

J3

CHIPSET

Setting

JMP1

27128 chip installed

Pins 1 & 2, 4 & 5 closed

27256 chip installed

Pins 2 & 3, 5 & 6 closed

I/O ADDRESS

» Address

JMP2

»

3XXh

Pins 2 & 3 closed

»

2XXh

Pins 1 & 2 closed

MONITOR TYPE

Setting

JMP3

EGA

Pins 1 & 2 closed

CGA or monochrome

Pins 2 & 3 closed

PRIMARY ADAPTER SETTINGS

EGA

Mono

CGA

SW1/1

SW1/2

SW1/3

SW1/4

40 x 25 text

Secondary adapter

N/A

On

Off

Off

On

80 x 25 text

Secondary adapter

N/A

Off

Off

Off

On

640 x 200

Secondary adapter

N/A

On

On

On

Off

640 x 350

Secondary adapter

N/A

Off

On

On

Off

Monochrome

N/A

Secondary adapter 40 x 25

On

Off

On

Off

Monochrome

N/A

Secondary adapter 80 x 25

Off

Off

On

Off

SECONDARY ADAPTER SETTINGS

EGA

Mono

CGA

SW1/1

SW1/2

SW1/3

SW1/4

40 x 25 text

Primary adapter

N/A

On

On

On

On

80 x 25 text

Primary adapter

N/A

Off

On

On

On

640 x 200

Primary adapter

N/A

On

Off

On

On

640 x 350

Primary adapter

N/A

Off

Off

On

On

Monochrome

N/A

Primary adapter 40 x 25

On

On

Off

On

Monochrome

N/A

Primary adapter 80 x 25

Off

On

Off

On

DISPLAY MODE SELECT

Setting

SW1/5

SW1/6

Standard/advanced EGA

On

On

CGA

Off

On

Monochrome

Off

Off