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486-GIO-VT2

FIRST INTERNATIONAL COMPUTER, INC.

486-GIO-VT2

Processor

CX486S/80486SX/CX486DX/AM486DX/AM486DXL/80486DX/80486DX2/

80486DX4/P4S/P23S/P24C/P24CT/P24D/P24S/Pentium Overdrive

Processor Speed

25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz

Chip Set

VIA

Max. Onboard DRAM

64MB

Cache

64/128/256KB

BIOS

Award

Dimensions

254mm x 218mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse interface

CN1

Turbo switch

J12

Game interface

CN2

Turbo LED

J13

PS/2 mouse port

CN4

Reset switch

J14

Serial port 2

CN7

Speaker

J15

Serial port 1

CN8

Power LED & keylock

J16

Floppy drive interface

CN9

Green PC connector

J17

Parallel port

CN10

Green PC connector

J23

IDE interface (primary)

CN11

Green PC connector

J24

IDE interface (secondary)

CN12

IDE interface LED (secondary)

J25

External battery

J1

32-bit VESA local bus slots

SL1 & SL2

IDE interface LED (primary)

J8

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select monochrome/EGA/VGA

J2

Open

 

Monitor type select color

J2

Closed

Battery type select internal

J3

pins 2 & 3 closed

 

Battery type select external

J3

pins 1 & 2 closed

VESA IDE interface enabled

J4

pins 1 & 2 closed

 

VESA IDE interface disabled

J4

pins 2 & 3 closed

CMOS memory normal operation

J7

Open

 

CMOS memory clear

J7

Closed

Local HDD_BALE disabled

J9

Open

 

Local HDD_BALE enabled

J9

Closed

Local HDD_IOCHRDY disabled

J10

Open

 

Local HDD_ IOCHRDY enabled

J10

Closed

ISA HDD_BALE disabled

J26

Open

 

ISA HDD_BALE enabled

J26

Closed

ISA HDD_IOCHRDY disabled

J27

Open

 

ISA HDD_ IOCHRDY enabled

J27

Closed

AM486DXL2 speed select 2x

J30

Closed

 

AM486DXL2 speed select 3x

J30

Open

Game port enabled

J31

Closed

 

Game port disabled

J31

Open

CPU type select Intel SL and all others

JCX2

pins 1 & 2 closed

 

CX486S/DX P24D

JCX2

pins 2 & 3 closed

Factory configured - do not alter

JP1

pins 2 & 3 closed

Factory configured - do not alter

JP2

pins 2 & 3 closed

Cache type select write through

JT1

Open

 

Cache type select write back

JT1

Closed

Factory configured - do not alter

JW1

N/A

Factory configured - do not alter

JW2

N/A

Factory configured - do not alter

JX1

pins 2 & 3 closed

IDE interface enabled

JG

pins 2 & 3 closed

USER CONFIGURABLE SETTINGS (CONT)

Function

Jumper

Position

 

IDE interface disabled

JG

pins 1 & 2 closed

Floppy drive interface enabled

JH

pins 2 & 3 closed

 

Floppy drive interface disabled

JH

pins 1 & 2 closed

Parallel port unidirectional (printer)

JI

Closed

 

Parallel port bidirectional

JI

Open

Note: The location of jumpers JP1, JP2 & JX1 are unidentified

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

NONE

NONE

NONE

2MB

(1) 256K x 36

(1) 256K x 36

NONE

NONE

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

4MB

(1) 1M x 36

NONE

NONE

NONE

5MB

(1) 1M x 36

(1) 256K x 36

NONE

NONE

6MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

NONE

7MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

12MB

NONE

(1) 1M x 36

(1) 2M x 36

NONE

12MB

NONE

NONE

(1) 1M x 36

(1) 2M x 36

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

NONE

NONE

NONE

16MB

NONE

(1) 1M x 36

(1) 2M x 36

(1) 1M x 36

16MB

NONE

NONE

(1) 2M x 36

(1) 2M x 36

17MB

(1) 4M x 36

(1) 256K x 36

NONE

NONE

18MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

NONE

19MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

20MB

(1) 4M x 36

(1) 1M x 36

NONE

NONE

21MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

NONE

22MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

NONE

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

32MB

NONE

NONE

(1) 8M x 36

NONE

33MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

NONE

34MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

36MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

NONE

40MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

48MB

NONE

(1) 4M x 36

(1) 8M x 36

NONE

48MB

NONE

NONE

(1) 4M x 36

(1) 8M x 36

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

NONE

(1) 4M x 36

(1) 8M x 36

(1) 4M x 36

64MB

NONE

NONE

(1) 8M x 36

(1) 8M x 36

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

JS1

JS2

JS3

64KB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

128KB

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

256KB

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

CPU TYPE CONFIGURATION

Type

JC1

JC2

JC3

JC4

CX486S

pins 2 & 3 closed

pins 2 & 3 closed

Open

pins 1 & 2 closed

80486SX

pins 2 & 3 closed

pins 2 & 3 closed

Open

pins 1 & 2 closed

CX486DX

pins 1 & 2 closed

pins 1 & 2 closed

Open

pins 1 & 2 closed

AM486DX

pins 1 & 2 closed

pins 1 & 2 closed

Open

pins 1 & 2 closed

80486DX

pins 1 & 2 closed

pins 1 & 2 closed

Open

pins 1 & 2 closed

80486DX2

pins 1 & 2 closed

pins 1 & 2 closed

Open

pins 1 & 2 closed

P4S

pins 1 & 2 closed

pins 1 & 2 closed

Open

pins 1 & 2 closed

P23S

pins 2 & 3 closed

pins 2 & 3 closed

Open

pins 1 & 2 closed

P24C

pins 1 & 2 closed

pins 1 & 2 closed

Open

pins 1 & 2 closed

P24CT

pins 1 & 2 closed

pins 1 & 2 closed

Closed

pins 2 & 3 closed

P24D

pins 1 & 2 closed

pins 1 & 2 closed

Open

pins 2 & 3 closed

P24S

pins 1 & 2 closed

pins 1 & 2 closed

Open

pins 1 & 2 closed

Pentium Overdrive

pins 1 & 2 closed

pins 1 & 2 closed

Closed

pins 2 & 3 closed

CPU TYPE CONFIGURATION

Type

RN20

RN21

RN22

JC5

JC6

CX486S

Not installed

Installed

Installed

Open

Open

80486SX

Not installed

Not installed

Not installed

Open

Open

CX486DX

Not installed

Installed

Installed

Open

Open

80486DX

Not installed

Not installed

Not installed

Open

Open

AM486DXL

Installed

Not installed

Not installed

Open

Open

80486DX2

Not installed

Not installed

Not installed

Open

Open

P4S

Not installed

Not installed

Not installed

Closed

Closed

P23S

Not installed

Not installed

Not installed

Closed

Closed

P24C

Not installed

Installed

Not installed

Closed

Closed

P24CT

Not installed

Installed

Not installed

Closed

Closed

P24D

Not installed

Installed

Not installed

Closed

Closed

P24S

Not installed

Not installed

Not installed

Closed

Closed

P24T

Not installed

Not installed

Not installed

Closed

Closed

CPU SPEED CONFIGURATION

Speed

JK1

JK2

JK3

JK4

25MHz

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

33MHz

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

40MHz

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

50iMHz

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

50MHz

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

66iMHz

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

75iMHz

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

100iMHz

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION (80486DX4 ONLY)

Speed

J20

3x

Open

2x

pins 1 & 2 closed

2.5x

pins 2 & 3 closed

CPU VOLTAGE CONFIGURATION

Setting

PS1

3.3v

Installed

5v

pins 1 & 2, 3 & 4, 13 & 14, 15 & 16 closed

VESA WAIT STATE CONFIGURATION

Wait states

JV3

0 wait states

pins 2 & 3 closed

1 wait state

pins 1 & 2 closed

BUS SPEED CONFIGURATION

CPU speed

JV2

<= 33MHz

pins 2 & 3 closed

> 33MHz

pins 1 & 2 closed

PARALLEL PORT CONFIGURATION

Setting

JE

JF

378

pins 1 & 2 closed

pins 2 & 3 closed

278

pins 2 & 3 closed

pins 1 & 2 closed

3BC

pins 2 & 3 closed

pins 2 & 3 closed

Disabled

pins 1 & 2 closed

pins 1 & 2 closed

PRINTER CONFIGURATION

Type

JW3

JW4

Printer

pins 2 & 3 closed

pins 2 & 3 closed

EPP/SPP

pins 2 & 3 closed

pins 1 & 2 closed

EPP/ECP

pins 1 & 2 closed

pins 2 & 3 closed

EXT2FDD

pins 1 & 2 closed

pins 1 & 2 closed

SERIAL PORT 1 CONFIGURATION

Setting

JA

JB

3F8

pins 2 & 3 closed

pins 1 & 2 closed

2E8

pins 2 & 3 closed

pins 2 & 3 closed

3E8

pins 1 & 2 closed

pins 2 & 3 closed

Disabled

pins 1 & 2 closed

pins 1 & 2 closed

SERIAL PORT 2 CONFIGURATION

Setting

JC

JD

2F8

pins 2 & 3 closed

pins 1 & 2 closed

2E8

pins 1 & 2 closed

pins 2 & 3 closed

3E8

pins 2 & 3 closed

pins 2 & 3 closed

Disabled

pins 1 & 2 closed

pins 1 & 2 closed

DMA CONFIGURATION

DMA

JW5

JW6

1

pins 1 & 2 closed

pins 1 & 2 closed

3

pins 2 & 3 closed

pins 2 & 3 closed

IDE SPEED CONFIGURATION

Speed

J5

J6

1

pins 1 & 2 closed

pins 2 & 3 closed

0

pins 2 & 3 closed

pins 2 & 3 closed

2

pins 1 & 2 closed

pins 1 & 2 closed