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VEGA 3-486 CACHE

YOUNG MICRO SYSTEMS, INC.

VEGA 3-486 CACHE

Processor

80386DX/80486SX/80487SX/80486DX/ODP486SX/80486DX2

Processor Speed

16/20/25/33/40/50/66(internal)MHz

Chip Set

Symphony

Max. Onboard DRAM

32MB

Cache

64/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo switch

C1

Power LED & keylock

C4

Turbo LED

C2

Speaker

C5

Reset switch

C3

 

 

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

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

64KB

(8) 8K x 8

256KB

(8) 32K x 8

CACHE JUMPER CONFIGURATION

Size

P26

P27

P31

64KB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

256KB

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

CPU TYPE CONFIGURATION

Type

P24

P25

P28

P30

P32

80386DX

2 & 3

1 & 2

1 & 2

1 & 2

1 & 2

80486SX

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

80486DX-25

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

80486DX-33

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

80486DX-50

1 & 2

2 & 3

2 & 3

2 & 3

2 & 3

80486DX2-50

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

80486DX2-66

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

Note: Pins designated should be in the closed.

CPU TYPE CONFIGURATION (CON'T)

Type

P33

P35

P36

P37

P38

80386DX

1 & 2

Closed

Closed

Open

Open

80486SX

2 & 3

Open

Open

Open

Open

80486DX-25

2 & 3

Open

Open

Open

Open

80486DX-33

2 & 3

Open

Open

Open

Open

80486DX-50

2 & 3

Open

Open

Closed

Closed

80486DX2-50

2 & 3

Open

Open

Open

Open

80486DX2-66

2 & 3

Open

Open

Open

Open

Note: Pins designated should be in the closed.

CPU TYPE CONFIGURATION (CON'T)

Type

P39

P40

P41

P42

P43

P44

80386DX

Closed

N/A

N/A

N/A

N/A

1 & 2

80486SX

Open

Open

Open

Open

Closed

2 & 3

80486DX-25

Open

Closed

Closed

Closed

Open

2 & 3

80486DX-33

Open

Closed

Closed

Closed

Open

2 & 3

80486DX-50

Open

Closed

Closed

Closed

Open

2 & 3

80486DX2-50

Open

Closed

Closed

Closed

Open

2 & 3

80486DX2-66

Open

Closed

Closed

Closed

Open

2 & 3

Note: Pins designated should be in the closed.