RINGO TECHNOLOGY, INC.

RT486SX/DX

Processor

80486SX/80486DX/80486DX2

Processor Speed

33/50/66(internal)MHz

Chip Set

OPTI

Video Chip Set

None

Maximum Onboard Memory

32MB

Maximum Video Memory

None

Cache

256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J22

Power LED & keylock

P6

Speaker

P5

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Battery type select internal

J22

Pins 2 & 3 closed

 

Battery type select Vectra battery

J22

Open

 

CMOS memory clear

J22

Pins 3 & 4 closed

»

Monitor type select color/EGA/VGA

JP12

Closed

 

Monitor type select monochrome

JP12

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

4MB

(4) 1M x 9

None

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

None

20MB

(4) 1M x 9

(4) 4M x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Note: Board is factory installed with 256KB cache and is not configurable. The location of the cache is unidentified.

CPU TYPE SELECTION

Type

J15

JP2

JP3

JP4

JP5

80486SX-33

Closed

Open

1 & 2

Open

2 & 3

80486DX-33

Closed

1 & 2

2 & 3

Closed

2 & 3

80486DX-50

Closed

1 & 2

2 & 3

Closed

1 & 2

80486DX2-66

Closed

1 & 2

2 & 3

Closed

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (CON’T)

Type

JP6

JP7

JP8

JP9

JP10

80486SX-33

Closed

2 & 3

Open

Open

Closed

80486DX-33

Closed

2 & 3

Open

Closed

Closed

80486DX-50

Closed

2 & 3

Open

Closed

Closed

80486DX2-66

Closed

2 & 3

Open

Closed

Closed

Note: Pins designated should be in the closed position.