UNIDENTIFIED

VEGA VS3486-3VL

Processor

80386DX/80486SX/80486DX/80486DX2

Processor Speed

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

Chip Set

Symphony

Max. Onboard DRAM

32MB

SRAM Cache

64/256/1024KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit Vesa local bus slots (3)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

BAT

32-bit Vesa local bus slots

S1, S2 & S3

Power LED & keylock

KEYL

Turbo switch

SPD

Turbo LED

LED

Speaker

SPK

Reset switch

RST

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Batterly select internal

BT1

Closed

 

Battery select external

BT1

Open

»

CMOS memory normal operation

CMOS

pins 3 & 4 closed

 

CMOS memory clear

CMOS

pins 1 & 2 closed

 

BIOS type select normal (27C512)

EPR

pins 1 & 2 closed

 

BIOS type select flash (28F001BX)

EPR

pins 2 & 3 closed

»

Factory configured - do not alter

JP19

Closed

»

Factory configured - do not alter

JP30

Closed

»

Factory configured - do not alter

JP31

Open

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

8MB

(4) 1M x 9

(4) 1M x 9

17MB

(4) 256K x 9

(4) 4M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

SRAM CONFIGURATION

Size

Cache

TAG

64KB

(8) 8K x 8

(1) 8K x 8

256KB

(8) 32K x 8

(1) 32K x 8

1024KB

(8) 128K x 8

(1) 128K x 8

SRAM JUMPER CONFIGURATION

Size

JP10

JP11

JP12

JP15

JP16

64KB

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

256KB

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 1 & 2

pins 1 & 2

1024KB

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 2 & 3

Note:Pins designated should be in the closed postion.

CPU TYPE CONFIGURATION

Jumper

80386DX

80486SX

80486DX

80486DX2

JP6

Open

Closed

Closed

Closed

JP7

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

JP8

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

JP9

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

JP13

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

JP14

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

JP17

pins 1 & 2 open

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

JP20

Closed

Open

Open

Open

JP21

Open

Closed

Closed

Closed

JP24

Closed

Open

Open

Open

JP34

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

JP35

Closed

Open

Closed

Closed

JP36

Closed

Open

Closed

Closed

CPU SPEED CONFIGURATION

Speed

JP4

JP5

JP18

JP22A

JP22

JP23

JP32

JP33

25/50i MHz

Open

Closed

Closed

2 & 3

1 & 2

2 & 3

Open

Open

33/66i MHz

Closed

Open

Closed

2 & 3

1 & 2

2 & 3

Open

Open

40MHz

Open

Open

Open

2 & 3

1 & 2

2 & 3

Closed

Open

50MHz

Open

Closed

Open

1 & 2

2 & 3

1 & 2

Closed

Closed

Note:Pins designated should be in the closed postion.