UNIDENTIFIED

S3 LOCAL BUS VGA

Category

Video

Video Types Supported

XVGA

Video Processor

S3

Highest Resolution Supported

1024 x 768

Data Bus Type

16-bit EISA

Memory Type

VRAM

Maximum Onboard Memory

1024KB

CONNECTIONS

Purpose

Location

15-pin analog video port

CN1

VIDEO MEMORY SPEED SELECTION

Speed

JP9

»

100ns

Pins 2 & 3 closed

 

80ns

Pins 1 & 2 closed

640 X 480 REFRESH RATE SELECTION

Rate

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

56Hz

On

Off

On

Off

Off

On

60Hz

On

Off

On

Off

On

Off

800 X 600 REFRESH RATE CONFIGURATION

Rate

Mode

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

43Hz

Interfaced

Off

On

On

Off

Off

On

60Hz

Non-Interlaced

On

Off

Off

On

Off

On

60Hz

Non-Interlaced

On

Off

Off

On

On

Off

70Hz

Non-Interlaced

Off

On

On

Off

On

Off

1024 X 768 REFRESH RATE CONFIGURATION

Rate

Mode

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

70Hz

Non-Interlaced

Off

On

Off

On

On

Off

70Hz

Non-Interlaced

Off

On

Off

On

Off

On

VRAM CONFIGURATION

Size

Bank 0

Bank 1

JP10

256KB

(2) 256K x 4 VRAM

None

Pins 2 & 3 closed

512KB

(4) 256K x 4 VRAM

None

Pins 2 & 3 closed

1024KB

(4) 256K x 4 VRAM

(4) 256K x 4 VRAM

Pins 1 & 2 closed