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VAES3486

VISION TECHNOLOGIES

VAES3486

Processor

80386DX/CX486DLC/CX486S/CX487S/80486SX(PQFP)/

80486SX/80486DX/80486DX2/Pentium Overdrive

Processor Speed

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

Chip Set

OPTI

Max. Onboard DRAM

64MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slots (2), floppy drive interface, IDE interface, green PC connector, parallel port, serial ports (2)

NPU Options

CX387

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

CN1

Power supply/sleep mode

JP2

Serial port 2

CN2

Speaker

JP28

Floppy drive interface

CN3

Green PC connector

JP30

IDE interface

CN4

Turbo switch

JP33

Parallel port

CN5

Turbo LED

JP38

External battery

J10

Reset switch

S1

IDE interface LED

J17

32-bit VESA local bus slots

SL1 & SL2

Power LED & keylock

J22

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

J9

N/A

Pentium Overdrive enabled

JP1

Open

 

Pentium Overdrive disabled

JP1

Closed

VESA supports bus mastering

JP4

Closed

 

VESA does not support bus mastering

JP4

Open

On board PS/2 style mouse enabled

JP14

Closed

 

On board PS/2 style mouse disabled

JP14

Open

Power down mode enabled

JP15

pins 2 & 3 closed

 

Power down mode disabled

JP15

pins 1 & 2 closed

Keyboard password clear

JP16

Closed

 

Keyboard password enabled

JP16

Open

NPU disabled

JP24

pins 1 & 2 closed

 

NPU enabled

JP24

pins 2 & 3 closed

CMOS memory normal operation

JP29

pins 2 & 3 closed

 

CMOS memory clear

JP29

pins 1 & 2 closed

Green PC power down mode enabled

JP30

Open

 

Green PC power down mode disabled

JP30

Closed

Turbo disabled

JP33

Closed

 

Turbo enabled

JP33

Open

VESA card type select standard VESA VGA

JP34

pins 2 & 3 closed

 

VESA card type select Tekram VESA/Cache IDE

JP34

pins 1 & 2 closed

Note: The location of JP16 is unidentified.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(1) 256K x 36

NONE

2MB

(1) 256K x 36

(1) 256K x 36

4MB

(1) 1M x 36

NONE

16MB

(1) 4M x 36

NONE

32MB

(1) 8M x 36

NONE

64MB

(1) 16M x 36

NONE

DRAM JUMPER CONFIGURATION

Type

JP42

Only Bank 0 used

pins 1 & 2 closed

Bank 0 & Bank 1 used

pins 2 & 3 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 x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1)32K x 8

CACHE JUMPER CONFIGURATION

Size

JP3

JP18

JP19

JP20

64KB

pins 2 & 3 closed

Closed

Closed

pins 2 & 3 closed

128KB

pins 1 & 2 closed

Open

Closed

pins 1 & 2 closed

256KB

pins 2 & 3 closed

Closed

Closed

pins 2 & 3 closed

CPU TYPE CONFIGURATION

Type

JP17

JP21

JP23

JP25

JP26

JP27

JP31

JP32

JP36

80386DX(PGA)

Open

2 & 3

Open

1 & 2

Open

Open

Closed

Open

Open

CX486DLC

Open

2 & 3

Open

1 & 2

Open

Open

Closed

Open

Open

80386DX(PQFP)

Open

2 & 3

Open

1 & 2

Open

Open

Open

Open

Open

CX486S

1 & 2

2 & 3

Closed

2 & 3

Open

Open

Closed

Closed

1 & 2

Cx487S

1 & 2

2 & 3

Closed

2 & 3

Closed

Open

Closed

Closed

1 & 2

80486SX(PQFP)

2 & 3

2 & 3

Open

1 & 2

Open

Open

Open

Open

Open

80486SX(PGA)

1 & 2

2 & 3

Open

1 & 2

Open

Open

Closed

Closed

2 & 3

80486DX

1 & 2

2 & 3

Open

1 & 2

Open

Open

Closed

Closed

1 & 2

80486DX-50(only)

1 & 2

2 & 3

Open

2 & 3

Open

Open

Closed

Closed

1 & 2

80486DX2

1 & 2

2 & 3

Open

1 & 2

Open

Open

Closed

Closed

1 & 2

P24T (WB)

1 & 2

1 & 2

Closed

2 & 3

Open

Open

Closed

Closed

1 & 2

P24T (WT)

1 & 2

1 & 2

Closed

2 & 3

Open

Closed

Closed

Closed

1 & 2

Note: Pins designated should be in the closed position (The location of JP25 and JP26 is unidentified).

CPU TYPE CONFIGURATION

Type

JP5

JP22

JP35

80386/CX486DLC

Open

pins 2 & 3 closed

pins 1 & 2 closed

80486/P24T/CX486S

Closed

pins 1 & 2 closed

pins 2 & 3 closed

CPU SPEED CONFIGURATION

Speed

JP39

JP40

JP41

16MHz

Open

Closed

Open

20MHz

Open

Closed

Closed

25MHz

Closed

Open

Open

33MHz

Closed

Open

Closed

40MHz

Closed

Closed

Open

50iMHz

Closed

Open

Open

50MHz

Closed

Closed

Closed

66iMHz

Closed

Open

Closed

DMA CHANNEL INTERRUPT CONFIGURATION

DRQ

DACK

JP6

JP7

JP8

JP9

JP10

JP11

JP12

JP13

DRQ3

DACK3

Closed

Open

Open

Open

Closed

Open

Open

Open

DRQ5

DACK5

Open

Closed

Open

Open

Open

Closed

Open

Open

DRQ6

DACK6

Open

Open

Closed

Open

Open

Open

Closed

Open

DRQ7

DACK7

Open

Open

Open

Closed

Open

Open

Open

Closed

VESA WAIT STATE CONFIGURATION

Wait states

JP37

0 wait states

Open

1 wait state

Closed