HwMuseum | Index

UNIDENTIFIED

J-403TG 486 GREEN VLB

Processor

80486SX/CX486DX/80486DX/80486DX2/80486DX4

Processor Speed

25/33/40/50(internal)/50/66(internal)MHz

Chip Set

OPTI

Max. Onboard DRAM

128MB

Cache

64/128/256KB

BIOS

AMI/Award

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slots (3), green PC connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

J1

Power LED & keylock

J6

External battery

J2

Green PC connector

JP6

Speaker

J3

Green PC connector (monitor)

JP39

Turbo switch

J4

Green PC LED

JP41

Turbo LED

J5

32-bit VESA local bus slots

SL1 - SL3

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Factory configured - do not alter

JP1

Open

»

CMOS memory normal operation

JP2

pins 2 & 3 closed

 

CMOS memory clear

JP2

pins 1 & 2 closed

»

Factory configured - do not alter

JP7

Open

»

Factory configured - do not alter

JP12

Open

»

Factory configured - do not alter

JP16

Open

»

Factory configured - do not alter

JP19

Open

»

Factory configured - do not alter

JP22

Open

»

Factory configured - do not alter

JP26

Open

»

Factory configured - do not alter

JP30

Open

»

Factory configured - do not alter

U28

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

JP5

2MB

(4) 256K x 9

NONE

NONE

(1) 256K x 36

2 & 3

2MB

NONE

NONE

NONE

(1) 512K x 36

1 & 2

4MB

(4) 1M x 9

NONE

NONE

NONE

2 & 3

4MB

NONE

NONE

NONE

(1) 1M x 36

1 & 2

4MB

(4) 256K x 9

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

2 & 3

4MB

NONE

NONE

(1) 512K x 36

(1) 512K x 36

1 & 2

5MB

(4) 256K x 9

NONE

NONE

(1) 1M x 36

2 & 3

6MB

(4) 256K x 9

NONE

(1) 1M x 36

(1) 256K x 36

2 & 3

6MB

NONE

NONE

(1) 1M x 36

(1) 512K x 36

1 & 2

8MB

(4) 1M x 9

NONE

NONE

(1) 1M x 36

2 & 3

8MB

NONE

NONE

NONE

(1) 2M x 36

1 & 2

8MB

NONE

NONE

(1) 1M x 36

(1) 1M x 36

1 & 2

10MB

(4) 256K x 9

NONE

(1) 2M x 36

(1) 256K x 36

2 & 3

10MB

(4) 256K x 9

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

2 & 3

10MB

NONE

NONE

(1) 2M x 36

(1) 512K x 36

1 & 2

10MB

NONE

(1) 1M x 36

(1) 1M x 36

(1) 512K x 36

1 & 2

12MB

(4) 1M x 9

NONE

(1) 2M x 36

NONE

2 & 3

12MB

NONE

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

1 & 2

12MB

(4) 1M x 9

(1) 1M x 36

(1) 1M x 36

NONE

2 & 3

16MB

(4) 4M x 9

NONE

NONE

NONE

2 & 3

16MB

NONE

NONE

NONE

(1) 4M x 36

1 & 2

16MB

(4) 1M x 9

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

2 & 3

16MB

NONE

NONE

(1) 2M x 36

(1) 2M x 36

1 & 2

17MB

(4) 256K x 9

NONE

NONE

(1) 4M x 36

2 & 3

20MB

(4) 1M x 9

NONE

NONE

(1) 4M x 36

2 & 3

20MB

(4) 1M x 9

NONE

(1) 4M x 36

NONE

2 & 3

20MB

NONE

NONE

(1) 4M x 36

(1) 1M x 36

1 & 2

32MB

(4) 4M x 9

NONE

NONE

(1) 4M x 36

2 & 3

32MB

NONE

NONE

NONE

(1) 8M x 36

1 & 2

32MB

(4) 4M x 9

NONE

(1) 4M x 36

NONE

2 & 3

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

JP5

32MB

NONE

NONE

(1) 4M x 36

(1) 4M x 36

1 & 2

64MB

(4) 16M x 9

NONE

NONE

NONE

2 & 3

64MB

NONE

NONE

NONE

(1) 16M x 36

1 & 2

64MB

(4) 4M x 9

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

2 & 3

64MB

NONE

NONE

(1) 8M x 36

(1) 8M x 36

1 & 2

128MB

(4) 16M x 9

NONE

NONE

(1) 16M x 36

2 & 3

128MB

NONE

NONE

NONE

(1) 32M x 36

1 & 2

128MB

(4) 16M x 9

NONE

(1) 16M x 36

NONE

2 & 3

128MB

NONE

NONE

(1) 16M x 36

(1) 16M x 36

1 & 2

Note: Pins designated should be in the closed positon.

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP8

JP27

JP28

64KB

pins 2 & 3 closed

Open

Open

128KB

pins 1 & 2 closed

Closed

Open

256KB

pins 2 & 3 closed

Closed

Closed

CPU TYPE CONFIGURATION

Type

JP9

JP10

JP11

JP13

JP15

80486SX

Open

Open

pins 1 & 2 closed

Open

Open

SL80486SX

Open

Closed

pins 1 & 2 closed

Open

Open

CX486DX

Closed

Open

pins 2 & 3 closed

pins 1 & 2 closed

Closed

80486DX

Open

Open

pins 1 & 2 closed

pins 1 & 2 closed

Open

SL80486DX

Open

Closed

pins 1 & 2 closed

pins 1 & 2 closed

Open

80486DX2

Open

Open

pins 1 & 2 closed

pins 1 & 2 closed

Open

SL80486DX2

Open

Closed

pins 1 & 2 closed

pins 1 & 2 closed

Open

80486DX4

Open

Closed

pins 1 & 2 closed

pins 1 & 2 closed

Open

CPU TYPE CONFIGURATION

Type

JP20

JP21

JP23

JP32

JP40

80486SX

Open

Open

2 & 3

Open

1 & 2, 3 & 4

SL80486SX

Open

Open

2 & 3

Open

1 & 2, 3 & 4

CX486DX

Open

Open

1 & 2, 3 & 4

1 & 2

1 & 2, 3 & 4

80486DX

Open

Open

1 & 2, 3 & 4

Open

1 & 2, 3 & 4

SL80486DX

Closed

Closed

1 & 2, 3 & 4

Open

1 & 2, 3 & 4

80486DX2

Open

Open

1 & 2, 3 & 4

Open

1 & 2, 3 & 4

SL80486DX2

Closed

Closed

1 & 2, 3 & 4

Open

1 & 2, 3 & 4

80486DX4

Closed

Closed

1 & 2, 3 & 4

2 & 3

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION

Speed

JP17

JP18

25MHz

Open

Open

33MHz

Closed

Closed

40MHz

Closed

Open

50iMHz

Open

Open

50MHz

Open

Closed

66iMHz

Closed

Closed

CPU VOLTAGE CONFIGURATION

Voltage

JP29

3.3v

pins 3 & 5, 4 & 6 closed

5.0v

pins 1 & 3, 2 & 4 closed

VESA WAIT STATE CONFIGURATION

Wait states

JP35

0 wait states

Open

1 wait state

Closed

BUS SPEED CONFIGURATION

CPU speed

JP31

JP33

JP37

<= 33MHz

pins 1 & 2 closed

pins 2 & 3 closed

Open

> 33MHz

pins 2 & 3 closed

pins 1 & 2 closed

Closed