VISIONEX

GREEN-A [4GPV4] MOTHERBOARD

Processor

CX486M6/80486SX/80487SX/CX486M7/AM486DX/80486DX/ AM486DX2/80486DX2/P24C/P24T

Processor Speed

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

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

128MB

Maximum Video Memory

None

Cache

256/512/1024KB

BIOS

AMI/Award/MR

Dimensions

254mm x 218mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP2

Turbo switch

JP19

Green PC connector

JP3

Green PC connector

JP20

Power LED & keylock

JP16

Turbo LED

JP21

Speaker

JP17

Reset switch

JP26

Green PC LED

JP18

32-bit VESA local bus slots

SL1 - SL3

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

CMOS memory normal operation

JP1

Pins 1 & 2 closed

 

CMOS memory clear

JP1

Pins 2 & 3 closed

 

Jumper information unavailable

JP4

Unidentified

 

Flash BIOS voltage select 12v

JP5

Pins 2 & 3 closed

 

Flash BIOS voltage select 5v

JP5

Pins 1 & 2 closed

 

Turbo enabled

JP19

Open

 

Turbo disabled

JP19

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

None

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

None

5MB

(4) 256K x 9

(4) 1M x 9

5MB

(4) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

None

17MB

(4) 256K x 9

(4) 4M x 9

17MB

(4) 4M x 9

(4) 256K x 9

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

64MB

(4) 16M x 9

None

65MB

(4) 256K x 9

(4) 16M x 9

65MB

(4) 16M x 9

(4) 256K x 9

68MB

(4) 1M x 9

(4) 16M x 9

68MB

(4) 16M x 9

(4) 1M x 9

80MB

(4) 4M x 9

(4) 16M x 9

80MB

(4) 16M x 9

(4) 4M x 9

128MB

(4) 16M x 9

(4) 16M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

512KB

(4) 128K x 8

None

(1) 32K x 8

1MB

(4) 128K x 8

(4) 128K x 8

(1) 128K x 8

Note: The location of banks 0 & 1 are unidentified.

CACHE JUMPER CONFIGURATION

Size

JP11

JP12

256KB

Pins 1 & 2 closed

Pins 1 & 2 closed

512KB

Pins 2 & 3 closed

Pins 2 & 3 closed

1MB

Pins 2 & 4 closed

Pins 2 & 3 closed

CPU SPEED SELECTION

Speed

JP13

JP22

JP27

JP28

JP60

JP61

JP62

25MHz

Closed

Open

2 & 4

2 & 3

Closed

1 & 2

2 & 3

33MHz

Open

Open

2 & 4

2 & 3

Closed

2 & 3

1 & 2

40MHz

Open

Closed

2 & 3

1 & 2

Open

1 & 2

2 & 3

50iMHz

Closed

Open

2 & 4

2 & 3

Closed

1 & 2

2 & 3

50MHz

Open

Closed

1 & 2

1 & 2

Open

2 & 3

1 & 2

66iMHz

Open

Open

2 & 4

2 & 3

Closed

2 & 3

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION

Type

JP8

JP9

JP10

80486SX

Pins 2 & 3 closed

Open

Open

80487SX

Pins 1 & 2, 3 & 4 closed

Pins 1 & 2 closed

Closed

80486DX

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3 closed

Open

80486DX2

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3 closed

Open

P24C

Pins 1 & 2, 3 & 4 closed

Pins 1 & 2 closed

Closed

P24T

Pins 1 & 2, 3 & 4 closed

Pins 1 & 2 closed

Closed

CPU TYPE SELECTION

Type

JP15

Cyrix

Pins 2 & 3 closed

AMD

Pins 1 & 2 closed

Intel

Pins 1 & 2 closed

VL BUS WAIT STATE SELECTION

Setting

JP23

0

Open

1

Closed