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SIS 486-471 VL BUS, VLT MB

VISION TECHNOLOGIES

SIS 486-471 VL BUS, VLT MB

Processor

CX486S/80486SX/SL80486SX/CX486DX/AM486DX/80486DX/AM486DXL/ SL80486DX/CX486DX2/AM486DX2/AM486DXL2/80486DX2/SL80486DX2/ 80486DX4

Processor Speed

20/25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz

Chip Set

SIS

Max. Onboard DRAM

128MB

Cache

64/128/256/512/1024KB

BIOS

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

External battery

J1

Speaker

J7

Green PC connector (VGA)

J2

Power LED & keylock

J8

Reset switch

J4

Green PC connector

JP29

Turbo LED

J5

32-bit VESA local bus slots

SL1 - SL3

Turbo switch

J6 pins 2 & 3

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

JP20

N/A

 

Factory configured - do not alter

JP21

N/A

Factory configured - do not alter

JP30

Open

Factory configured - do not alter

JP35

N/A

CMOS memory normal operation

JP38

pins 1 & 2 closed

 

CMOS memory clear

JP38

pins 2 & 3 closed

Monitor type select monochrome/EGA/VGA

JP39

Open

 

Monitor type select CGA

JP39

Closed

RC pin for break switch enabled

JP40

pins 1 & 2 closed

 

RC pin used for RC

JP40

pins 2 & 3 closed

DRAM CONFIGURATION 1

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(1) 256K x 36

4MB

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(1) 1M x 36

16MB

(4) 4M x 9

NONE

20MB

(4) 1M x 9

(1) 4M x 36

32MB

(4) 4M x 9

(1) 4M x 36

64MB

(4) 8M x 9

(1) 8M x 36

128MB

(4) 16M x 9

(1) 16M x 36

DRAM CONFIGURATION 2

Size

Bank 0

Bank 1

Bank 2

1MB

(4) 256K x 9

NONE

NONE

2MB

(4) 256K x 9

(1) 256K x 36

NONE

4MB

(4) 1M x 9

NONE

NONE

5MB

(4) 256K x 9

(1) 1M x 36

NONE

6MB

(4) 256K x 9

(1) 256K x 36

(1) 1M x 36

8MB

(4) 1M x 9

(1) 1M x 36

NONE

12MB

(4) 1M x 9

(1) 1M x 36

(1) 1M x 36

16MB

(4) 4M x 9

NONE

NONE

17MB

(4) 256K x 9

(1) 4M x 36

NONE

18MB

(4) 256K x 9

(1) 256K x 36

(1) 4M x 36

20MB

(4) 1M x 9

(1) 4M x 36

NONE

24MB

(4) 1M x 9

(1) 1M x 36

(1) 4M x 36

32MB

(4) 4M x 9

(1) 4M x 36

NONE

34MB

(4) 256K x 9

(1) 256K x 36

(1) 8M x 36

36MB

(4) 1M x 9

(1) 4M x 36

(1) 4M x 36

40MB

(4) 1M x 9

(1) 1M x 36

(1) 8M x 36

48MB

(4) 4M x 9

(1) 4M x 36

(1) 4M x 36

48MB

(4) 4M x 9

(1) 8M x 36

NONE

64MB

(4) 4M x 9

(1) 4M x 36

(1) 8M x 36

DRAM CONFIGURATION 2 (CONT)

Size

Bank 0

Bank 1

Bank 2

64MB

(4) 16M x 9

NONE

NONE

68MB

(4) 1M x 9

(1) 8M x 36

(1) 8M x 36

80MB

(4) 4M x 9

(1) 8M x 36

(1) 8M x 36

96MB

(4) 16M x 9

(1) 8M x 36

NONE

128MB

(4) 16M x 9

(1) 8M x 36

(1) 8M x 36

DRAM CONFIGURATION 3

Size

Bank 0

Bank 1

Bank 2

1MB

NONE

(1) 256K x 36

NONE

2MB

NONE

(1) 256K x 36

(1) 256K x 36

4MB

NONE

(1) 1M x 36

NONE

5MB

NONE

(1) 256K x 36

(1) 1M x 36

6MB

(4) 1M x 9

(1) 256K x 36

(1) 256K x 36

8MB

NONE

(1) 1M x 36

(1) 1M x 36

8MB

NONE

(1) 2M x 36

NONE

12MB

(4) 1M x 9

(1) 1M x 36

(1) 1M x 36

16MB

(4) 4M x 9

NONE

NONE

16MB

NONE

(1) 4M x 36

NONE

17MB

NONE

(1) 256K x 36

(1) 4M x 36

18MB

(4) 4M x 9

(1) 256K x 36

(1) 256K x 36

20MB

NONE

(1) 1M x 36

(1) 4M x 36

24MB

(4) 4M x 9

(1) 1M x 36

(1) 1M x 36

32MB

NONE

(1) 4M x 36

(1) 4M x 36

32MB

NONE

(1) 8M x 36

NONE

36MB

(4) 4M x 9

(1) 1M x 36

(1) 4M x 36

36MB

NONE

(1) 1M x 36

(1) 8M x 36

48MB

(4) 4M x 9

(1) 4M x 36

(1) 4M x 36

48MB

NONE

(1) 4M x 36

(1) 8M x 36

64MB

(4) 16M x 9

NONE

NONE

72MB

(4) 16M x 9

(1) 1M x 36

(1) 1M x 36

96MB

(4) 16M x 9

(1) 4M x 36

(1) 4M x 36

128MB

(4) 16M x 9

(1) 8M x 36

(1) 8M x 36

DRAM JUMPER CONFIGURATION

Configuration

JP36

JP37

1

pins 1 & 2 closed

Open

2

pins 1 & 2 closed

pins 2 & 3 closed

3

pins 2 & 3 closed

pins 1 & 2 closed

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 or (1) 16K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 16K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

512KB

(8) 64K x 8

NONE

(1) 32K x 8

1MB

(4) 128K x 8

(4) 128K x 8

(1) 128K x 8

Note: The location of the TAG is unidentified.

CACHE JUMPER CONFIGURATION

Size

JP1

JP2

JP3

JP25

JP26

JP27

JP28

64KB

1 & 2

2 & 3

2 & 3, 4 & 5

1 & 2

1 & 2

1 & 2

Open

128KB

2 & 3

1 & 2

1 & 2, 3 & 4

2 & 3

1 & 2

1 & 2

Open

256KB

2 & 3

2 & 3

2 & 3, 4 & 5

2 & 3

Open

Open

Closed

256KB

2 & 3

2 & 3

2 & 3, 4 & 5

2 & 3

2 & 3

1 & 2

Open

512KB

2 & 3

1 & 2

1 & 2, 3 & 4

2 & 3

2 & 3

2 & 3

Open

1MB

2 & 3

2 & 3

2 & 3, 4 & 5

2 & 3

2 & 3

2 & 3

Open

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JP4

JP5

JP6

JP7

JP8

CX486SX

Open

Open

Open

2 & 3

2 & 3

80486SX

Open

Open

Open

3 & 4

Open

SL80486SX

Open

Open

Open

1 & 2, 3 & 4

Open

CX486DX

Open

Open

Open

1 & 2, 3 & 4

2 & 3

80486DX

Open

Open

Open

1 & 2, 3 & 4

Open

SL80486DX

Open

Open

Open

1 & 2, 3 & 4

Open

CX486DX2-66

Open

Open

Open

1 & 2, 3 & 4

2 & 3

CX486DX2-80

Open

Open

Open

1 & 2, 3 & 4

2 & 3

AM486DX2

Open

Open

Open

1 & 2, 3 & 4

Open

AM486DXL2

Open

Open

Open

1 & 2, 3 & 4

Open

80486DX2

Open

Open

Open

1 & 2, 3 & 4

Open

SL80486DX2

Open

Open

Open

1 & 2, 3 & 4

Open

80486DX4

Open

Open

Open

1 & 2, 3 & 4

Open

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CONT)

Type

JP9

JP10

JP11

JP12

JP13

CX486SX

2 & 3

1 & 2

2 & 3

Open

1 & 2, 3 & 4

80486SX

2 & 3

1 & 2

Open

Open

Open

SL80486SX

2 & 3

1 & 2

Open

Open

2 & 3

CX486DX

2 & 3

1 & 2

2 & 3

3 & 4

1 & 2, 3 & 4

80486DX

2 & 3

1 & 2

Open

3 & 4

Open

SL80486DX

2 & 3

1 & 2

Open

3 & 4

2 & 3

CX486DX2-66

2 & 3

1 & 2

2 & 3

3 & 4

1 & 2, 3 & 4

CX486DX2-80

2 & 3

1 & 2

2 & 3

3 & 4

1 & 2, 3 & 4

AM486DX2

2 & 3

1 & 2

Open

3 & 4

Open

AM486DXL2

2 & 3

2 & 3

3 & 4

1 & 2, 3 & 4

Open

80486DX2

2 & 3

1 & 2

Open

3 & 4

Open

SL80486DX2

2 & 3

1 & 2

Open

3 & 4

2 & 3

80486DX4

2 & 3

1 & 2

Open

3 & 4

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CONT)

Type

JP14

JP15

JP16

JP17

JP18

JP19

CX486SX

2 & 3, 4 & 5

Open

Open

2 & 3

Closed

2 & 3

80486SX

Open

Open

Open

Open

Closed

2 & 3

SL80486SX

3 & 4

Open

1 & 2

4 & 5

Closed

2 & 3

CX486DX

2 & 3, 4 & 5

Open

Open

2 & 3

Closed

2 & 3

80486DX

Open

Open

Open

Open

Closed

2 & 3

SL80486DX

3 & 4

Open

1 & 2

4 & 5

Closed

2 & 3

CX486DX2-66

2 & 3, 4 & 5

Open

Open

2 & 3

Closed

2 & 3

CX486DX2-80

2 & 3

Open

Open

2 & 3

Closed

2 & 3

AM486DX2

Open

Open

Open

Open

Closed

2 & 3

AM486DXL2

Open

Open

Open

Open

Closed

2 & 3

80486DX2

Open

Open

Open

Open

Closed

2 & 3

SL80486DX2

3 & 4

Open

1 & 2

4 & 5

Closed

2 & 3

80486DX4

3 & 4

Open

1 & 2

4 & 5

Open

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CONT)

Type

JP33

JP34

JP41

JP42

JP43

CX486SX

1 & 2

2 & 3

3 & 4, 5 & 6

Open

Open

80486SX

2 & 3

1 & 2

3 & 4, 5 & 6

Open

Open

SL80486SX

2 & 3

1 & 2

3 & 4, 5 & 6

Open

Open

CX486DX

1 & 2

2 & 3

3 & 4, 5 & 6

Open

Open

80486DX

2 & 3

1 & 2

3 & 4, 5 & 6

Open

Open

SL80486DX

2 & 3

1 & 2

3 & 4, 5 & 6

Open

Open

CX486DX2-66

1 & 2

2 & 3

1 & 2, 3 & 4

Closed

Open

CX486DX2-80

1 & 2

2 & 3

1 & 2, 3 & 4

Closed

Open

AM486DX2

2 & 3

1 & 2

1 & 2, 3 & 4

Open

Closed

AM486DXL2

1 & 2

2 & 3

3 & 4, 5 & 6

Open

Open

80486DX2

2 & 3

1 & 2

3 & 4, 5 & 6

Open

Open

SL80486DX2

2 & 3

1 & 2

3 & 4, 5 & 6

Open

Open

80486DX4

2 & 3

1 & 2

1 & 2, 3 & 4

Closed

Open

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION (AV9107)

Speed

JP22

JP23

JP24

20MHz

Closed

Open

Closed

25MHz

Closed

Closed

Open

33MHz

Open

Closed

Closed

40MHz

Closed

Open

Open

50iMHz

Closed

Closed

Open

50MHz

Open

Open

Closed

66iMHz

Open

Closed

Closed

75iMHz

Closed

Closed

Open

100iMHz

Open

Closed

Closed

CPU SPEED CONFIGURATION (MX8315)

Speed

JP22

JP23

JP24

20MHz

Open

Open

Open

25MHz

Open

Closed

Open

33MHz

Closed

Closed

Closed

40MHz

Open

Closed

Closed

50iMHz

Open

Closed

Open

50MHz

Closed

Open

Open

66iMHz

Closed

Closed

Closed

75iMHz

Open

Closed

Open

100iMHz

Closed

Closed

Closed

VESA WAIT STATE CONFIGURATION

Wait states

JP31

0 wait states

pins 1 & 2 closed

1 wait state

pins 2 & 3 closed

BUS SPEED CONFIGURATION

CPU speed

JP32

<= 33MHz

pins 1 & 2 closed

> 33MHz

pins 2 & 3 closed