UNIDENTIFIED

EGA EXTRA

Card Type

Video card

Video Chip Set

Unidentified

Maximum Video Memory

256KB VRAM

Video Types Supported

Monochrome, CGA, EGA, VGA

Highest Resolution Supported

800 x 600

Data Bus

8-bit ISA

CONNECTIONS

Function

Label

9-pin digital video port

CN1

BASE I/O ADDRESS SELECTION

Setting

JP2

3xxH

Open

 

2xxH

Closed

SCAN RATE SELECTION

Rate

Label

Position

Emulation mode enabled

SW1/5

On

Emulation mode disabled

SW1/5

Off

200 double scan lines enabled

SW1/6

On

200 double scan lines disabled

SW1/6

Off

DISPLAY SETTINGS AS PRIMARY ADAPTER

SETTING

SW1/1

SW1/2

SW1/3

SW1/4

JP1

Mono/Hercules (80x25)

Off

Off

On

Off

Pins 2 & 3 closed

Mono/Hercules (40x25)

On

Off

On

Off

Pins 2 & 3 closed

CGA (80X25)

Off

Off

Off

On

Pins 1 & 2 closed

CGA (40X25)

On

Off

Off

On

Pins 1 & 2 closed

EGA (640X350)

Off

On

On

Off

Pins 1 & 2 closed

EGA (320X200)

On

On

On

Off

Pins 1 & 2 closed

DISPLAY SETTINGS AS SECONDARY ADAPTER

SETTING

SW1/1

SW1/2

SW1/3

SW1/4

JP1

Mono/Hercules (80x25)

Off

On

Off

On

Pins 2 & 3 closed

Mono/Hercules (40x25)

On

On

Off

On

Pins 2 & 3 closed

CGA (80X25)

Off

On

On

On

Pins 1 & 2 closed

CGA (40X25)

On

On

On

On

Pins 1 & 2 closed

EGA (640X350)

Off

Off

On

On

Pins 1 & 2 closed

EGA (320X200)

On

Off

On

On

Pins 1 & 2 closed