VEGA VS3486AIO-2VL Motherboard Settings and Configuration

Processor

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

Processor Speed

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

Chip Set

Symphony

Max. onboard DRAM

32MB

Cache

64/256/1024KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

IDE interface, parallel port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Floppy drive interface

FDC

32-bit VESA local bus slot

S1

Game port

GP

32-bit VESA local bus slot

S2

IDE interface

IDE

Serial port 1

SC1

External battery

J2

Serial port 2

SC2

Power LED & keylock

KEYL

Speaker

SPKR

Parallel port

PC

Turbo LED

TLED

Reset switch

RSET

Turbo switch

TSW

Note: A DS146818A must be installed and the DS1287 removed, to use an external battery.

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

CMOS memory normal operation

J3

pins 1 & 2 closed

CMOS memory clear

J3

pins 3 & 4 closed

»

Battery select internal

JP2

Closed

Battery select external

JP2

Open

BIOS type select regular (27C512)

JP3

pins 1 & 2 closed

BIOS type select flash (28F001BX)

JP3

pins 2 & 3 closed

»

Factory configured - do not alter

JP32

pins 2 & 3 closed

Parallel port (PC) select IRQ5

W7

pins 1 & 2 closed

Parallel port (PC) select IRQ7

W7

pins 2 & 3 closed

»

Serial port 2 (SC2) select IRQ3

W8

pins 1 & 2 closed

Serial port 2 (SC2) select IRQ4

W8

pins 2 & 3 closed

»

Serial port 1 (SC1) select IRQ3

W11

pins 1 & 2 closed

Serial port 1 (SC1) select IRQ4

W11

pins 2 & 3 closed

»

Floppy drive enabled

W12

pins 1 & 2 closed

Floppy drive disabled

W12

pins 2 & 3 closed

Note: J3 & JP2 will not function unless the DS1287 RTC is replaced with a DSA146818A RTC.

SERIAL PORT 1 (SC1) CONFIGURATION

COM

I/O Address

W1

W2

COM1

3F8h

pins 1 & 2 closed

pins 1 & 2 closed

COM2

2F8h

pins 1 & 2 closed

pins 2 & 3 closed

COM3

3E8h

pins 2 & 3 closed

pins 1 & 2 closed

Disabled

N/A

pins 2 & 3 closed

pins 2 & 3 closed

SERIAL PORT 2 (SC2) CONFIGURATION

COM

I/O Address

W3

W5

COM1

3F8h

pins 1 & 2 closed

pins 1 & 2 closed

COM2

2F8h

pins 1 & 2 closed

pins 2 & 3 closed

COM4

2E8h

pins 2 & 3 closed

pins 1 & 2 closed

Disabled

N/A

pins 2 & 3 closed

pins 2 & 3 closed

PARALLEL PORT (PC) CONFIGURATION

LPT

I/O Address

W6

W9

LPT1

378h

pins 1 & 2 closed

pins 1 & 2 closed

LPT2

278h

pins 1 & 2 closed

pins 2 & 3 closed

LPT3

3BCh

pins 2 & 3 closed

pins 1 & 2 closed

Disabled

N/A

pins 2 & 3 closed

pins 2 & 3 closed

IDE INTERFACE CONFIGURATION

Mode

JA1

W4

W10

Enabled

Closed

Closed

pins 1 & 2 closed

Disabled

Open

Open

pins 2 & 3 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

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

17MB

(4) 256K x 9

(4) 4M x 9

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Max Cachable

Cache

TAG

64KB

8MB

(8) 8K x 8

(1) 8K x 8

256KB

32MB

(8) 32K x 8

(1) 32K x 8

1MB

64MB

(8) 128K x 8

(1) 128K x 8

CACHE JUMPER CONFIGURATION

Size

JP27

JP28

JP29

JP30

JP31

64KB

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

256KB

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 2 & 3

pins 2 & 3

1024KB

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 2 & 3

Note:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Jumper

80386DX

80486SX/80487SX

80486DX/DX2/ODP

JP6

Open

Closed

Closed

JP17

Closed

Open

Open

JP18

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

JP24

N/A

pins 2 & 3 closed

pins 1 & 2 closed

JP25

N/A

Open

Closed

JP26

N/A

Open

Closed

JP33

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

JP34

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

JP35

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

JP36

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

JP37

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

CPU SPEED CONFIGURATION

Jumper

20MHz

25/50I MHz

33/66I MHz

40MHz

50MHz

JP4

Closed

Open

Closed

Open

Open

JP5

Closed

Closed

Open

Open

Closed

JP7

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 2 & 3

JP7A

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 2 & 3

JP8

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 1 & 2

JP11

Open

Open

Open

Open

Closed

JP12

Open

Open

Open

Open

Closed

JP13

Open

Open

Open

Open

Closed

JP14

Open

Open

Open

Open

Closed

Note:Pins designated should be in the closed position.

VESA CPU TYPE (ID0 & ID1) CONFIGURATION

CPU Type

JP9 (ID0)

JP10 (ID1)

80386

Closed

Open

80486

Open

Closed

VESA WAIT STATE (ID2) CONFIGURATION

Wait states

CPU speed

JP16 (ID2)

0 wait states

£ 33MHz

Open

1 wait state

> 33MHz

Closed

VESA BUS SPEED (ID3) CONFIGURATION

CPU speed

JP15 (ID3)

£ 33MHz

Open

> 33MHz

Closed