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VS3486F (REV. 2.0)

YOUNG MICRO SYSTEMS, INC.

VS3486F (REV. 2.0)

Processor

80386DX/80486SX/80487SX/CX486DLC/80486DX/80486DX2

Processor Speed

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

Chip Set

Symphony

Video Chip Set

None

Maximum Onboard Memory

32MB

Maximum Video Memory

None

Cache

64/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387DX/4167

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo switch

J1

Power LED & keylock

J4

Turbo LED

J2

Speaker

J5

Reset switch

J3

 

 

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

JP1

Unidentified

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) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

None

17MB

(4) 4M x 9

(4) 256K x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

64KB

(4) 8K x 8

(4) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

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

CACHE JUMPER CONFIGURATION

Size

JP26

JP27

JP31

64KB

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

256KB

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

CPU TYPE SELECTION

Type

JP24

JP25

JP28

JP32

80368DX

2 & 3

2 & 3

2 & 3

2 & 3

CX486DLC

2 & 3

2 & 3

2 & 3

2 & 3

80486SX

2 & 3

1 & 2

1 & 2

1 & 2

80486DX-25/33

2 & 3

1 & 2

1 & 2

1 & 2

80486DX-50

1 & 2

1 & 2

1 & 2

1 & 2

80486DX2

2 & 3

1 & 2

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION

Type

JP33

JP34

JP35

JP36

JP37

JP38

80368DX

2 & 3

2 & 3

Closed

Closed

Open

Open

CX486DLC

2 & 3

2 & 3

Closed

Closed

Open

Open

80486SX

1 & 2

1 & 2

Open

Open

Open

Open

80486DX-25/33

1 & 2

1 & 2

Open

Open

Open

Open

80486DX-50

1 & 2

1 & 2

Open

Open

Closed

Closed

80486DX2

1 & 2

1 & 2

Open

Open

Open

Open

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION

Type

JP39

JP40

JP41

JP42

JP43

JP44

80368DX

Closed

Open

Open

Open

Open

2 & 3

CX486DLC

Closed

Open

Open

Open

Open

2 & 3

80486SX

Open

Open

Open

Open

Closed

1 & 2

80486DX-25/33

Open

Closed

Closed

Closed

Open

1 & 2

80486DX-50

Open

Closed

Closed

Closed

Open

1 & 2

80486DX2

Open

Closed

Closed

Closed

Open

1 & 2

Note: Pins designated should be in the closed position.