...because we can't all be on the bleeding edge...





486-GT

FIRST INTERNATIONAL COMPUTER, INC.

486-GT

Processor

CX486S/CX487S/80486SL/80486SX/CX486DX/80486DX/ODP486SX/ 80486DX2/Pentium Overdrive

Processor Speed

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

Chip Set

VIA

Max. Onboard DRAM

96MB

Cache

64/128/256KB

BIOS

Award

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Reset switch

J8

Turbo switch

J2

Speaker

J9

Green Power supply connector

J3

Power LED & keylock

J10

Turbo LED

J6

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select monochrome, EGA or VGA

J4

Open

 

Monitor type select color

J4

Closed

Adaptec ISA master installed

J5

Closed

 

Adaptec ISA master not installed

J5

Open

CMOS memory normal operation

J7

Open

 

CMOS memory clear

J7

Closed

Cyrix clock 2 x mode

JC8

pins 1 & 2 closed

 

Cyrix clock 1 x mode

JC8

pins 2 & 3 closed

Factory configured - do not alter

JP1

pins 1 & 2 closed

Factory configured - do not alter

JP3

pins 1 & 2 closed

Pentium Overdrive write-back CPU installed

JT1

pins 1 & 2 closed

 

Pentium Overdrive write-through CPU installed

JT1

pins 2 & 3 closed

Factory configured - do not alter

JX1

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

1MB

(4) 256K x 9

NONE

NONE

1MB

NONE

(1) 1M x 36

NONE

1MB

NONE

NONE

(1) 1M x 36

2MB

(4) 256K x 9

(1) 1M x 36

NONE

2MB

NONE

(1) 1M x 36

(1) 1M x 36

2MB

(4) 256K x 9

NONE

(1) 1M x 36

3MB

(4) 256K x 9

(1) 1M x 36

(1) 1M x 36

4MB

(4) 1M x 9

NONE

NONE

4MB

NONE

(1) 4M x 36

NONE

4MB

NONE

NONE

(1) 4M x 36

5MB

(4) 256K x 9

(1) 4M x 36

NONE

5MB

(4) 256K x 9

NONE

(1) 4M x 36

5MB

(4) 1M x 9

(1) 1M x 36

NONE

5MB

(1) 1M x 9

NONE

(1) 1M x 36

5MB

NONE

(1) 1M x 36

(1) 4M x 36

5MB

NONE

(1) 4M x 36

(1) 1M x 36

6MB

(4) 256K x 9

(1) 4M x 36

(1) 1M x 36

6MB

(4) 256K x 9

(1) 1M x 36

(1) 4M x 36

6MB

(1) 1M x 9

(1) 1M x 36

(1) 1M x 36

8MB

(1) 1M x 9

(1) 4M x 36

NONE

8MB

(1) 1M x 9

NONE

(1) 4M x 36

8MB

NONE

(1) 4M x 36

(1) 4M x 36

9MB

(4) 256K x 9

(1) 4M x 36

(1) 4M x 36

9MB

(1) 1M x 9

(1) 1M x 36

(1) 4M x 36

9MB

(1) 1M x 9

(1) 4M x 36

(1) 1M x 36

12MB

(1) 1M x 9

(1) 4M x 36

(1) 4M x 36

16MB

(1) 4M x 9

NONE

NONE

16MB

NONE

(1) 16M x 36

NONE

16MB

NONE

NONE

(1) 16M x 36

DRAM CONFIGURATION (CONT.)

Size

Bank 0

Bank 1

Bank 2

17MB

(4) 256K x 9

(1) 16M x 36

NONE

17MB

(4) 256K x 9

NONE

(1) 16M x 36

17MB

NONE

(1) 1M x 36

(1) 16M x 36

17MB

NONE

(1) 16M x 36

(1) 1M x 36

17MB

(1) 4M x 9

(1) 1M x 36

NONE

17MB

(1) 4M x 9

NONE

(1) 1M x 36

18MB

(4) 256K x 9

(1) 1M x 36

(1) 16M x 36

18MB

(4) 256K x 9

(1) 16M x 36

(1) 1M x 36

18MB

(1) 4M x 9

(1) 1M x 36

(1) 1M x 36

20MB

(1) 1M x 9

(1) 16M x 36

NONE

20MB

(1) 1M x 9

NONE

(1) 16M x 36

20MB

(1) 4M x 9

(1) 4M x 36

NONE

20MB

(1) 4M x 9

NONE

(1) 4M x 36

20MB

NONE

(1) 4M x 36

(1) 16M x 36

20MB

NONE

(1) 16M x 36

(1) 4M x 36

21MB

(4) 256K x 9

(1) 4M x 36

(1) 16M x 36

21MB

(4) 256K x 9

(1) 16M x 36

(1) 4M x 36

21MB

(1) 1M x 9

(1) 1M x 36

(1) 16M x 36

21MB

(1) 1M x 9

(1) 16M x 36

(1) 1M x 36

21MB

(1) 4M x 9

(1) 1M x 36

(1) 4M x 36

21MB

(1) 4M x 9

(1) 4M x 36

(1) 1M x 36

24MB

(1) 1M x 9

(1) 4M x 36

(1) 16M x 36

24MB

(1) 1M x 9

(1) 16M x 36

(1) 4M x 36

24MB

(1) 4M x 9

(1) 4M x 36

(1) 4M x 36

32MB

(1) 4M x 9

(1) 16M x 36

NONE

32MB

(1) 4M x 9

NONE

(1) 16M x 36

32MB

NONE

(1) 16M x 36

(1) 16M x 36

32MB

NONE

(1) 32M x 36

NONE

32MB

NONE

NONE

(1) 32M x 36

33MB

(4) 256K x 9

(1) 16M x 36

(1) 16M x 36

33MB

(1) 4M x 9

(1) 1M x 36

(1) 16M x 36

33MB

(1) 4M x 9

(1) 16M x 36

(1) 1M x 36

36MB

(1) 1M x 9

(1) 16M x 36

(1) 16M x 36

36MB

(1) 4M x 9

(1) 4M x 36

(1) 16M x 36

36MB

(1) 4M x 9

(1) 16M x 36

(1) 4M x 36

48MB

(1) 4M x 9

(1) 16M x 36

(1) 16M x 36

64MB

(1) 16M x 9

NONE

NONE

64MB

NONE

(1) 32M x 36

(1) 32M x 36

65MB

(1) 16M x 9

(1) 1M x 36

NONE

65MB

(1) 16M x 9

NONE

(1) 1M x 36

66MB

(1) 16M x 9

(1) 1M x 36

(1) 1M x 36

68MB

(1) 16M x 9

(1) 4M x 36

NONE

68MB

(1) 16M x 9

NONE

(1) 4M x 36

69MB

(1) 16M x 9

(1) 1M x 36

(1) 4M x 36

69MB

(1) 16M x 9

(1) 4M x 36

(1) 1M x 36

DRAM CONFIGURATION (CONT.)

Size

Bank 0

Bank 1

Bank 2

72MB

(1) 16M x 9

(1) 4M x 36

(1) 4M x 36

80MB

(1) 16M x 9

(1) 16M x 36

NONE

80MB

(1) 16M x 9

NONE

(1) 16M x 36

81MB

(1) 16M x 9

(1) 1M x 36

(1) 16M x 36

81MB

(1) 16M x 9

(1) 16M x 36

(1) 1M x 36

84MB

(1) 16M x 9

(1) 4M x 36

(1) 16M x 36

84MB

(1) 16M x 9

(1) 16M x 36

(1) 4M x 36

96MB

(1) 16M x 9

(1) 16M x 36

(1) 16M 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

JC5

JC7

JCX1

CX486S

2 & 3

2 & 3

Closed

Open

Open

1 & 2

Open

CX486S/CX487S

1 & 2

1 & 2

Closed

Open

Open

1 & 2

Closed

CX487S

1 & 2

1 & 2

Closed

Open

Open

1 & 2

Closed

80486SL

1 & 2

1 & 2

Closed

Open

Closed

1 & 2

Open

80486SX

2 & 3

2 & 3

Open

Open

Closed

1 & 2

Open

CX486DX

1 & 2

1 & 2

Closed

Open

Open

1 & 2

Closed

80486DX

1 & 2

1 & 2

Closed

Open

Closed

1 & 2

Open

ODP486SX

1 & 2

1 & 2

Closed

Open

Closed

1 & 2

Open

80486DX2

1 & 2

1 & 2

Closed

Open

Closed

1 & 2

Open

Pentium Overdrive

1 & 2

1 & 2

Open

Closed

Open

2 & 3

Open

Note:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CONT.)

Type

JCX2

JP2

JX2

RN12

RN13

CX486S

pins 2 & 3

pins 2 & 3

pins 2 & 3

Not installed

Installed

80486SL

pins 1 & 2

pins 2 & 3

pins 2 & 3

Installed

Not installed

80486SX

pins 1 & 2

pins 2 & 3

pins 2 & 3

Not installed

Not installed

CX486DX

pins 1 & 2

pins 2 & 3

pins 2 & 3

Not installed

Installed

80486DX

pins 1 & 2

pins 1 & 2

pins 1 & 2

Not installed

Not installed

ODP486SX

pins 1 & 2

pins 2 & 3

pins 2 & 3

Installed

Not installed

80486DX2

pins 1 & 2

pins 1 & 2

pins 1 & 2

Not installed

Not installed

Pentium Overdrive

pins 1 & 2

pins 1 & 2

pins 1 & 2

Installed

Not installed

Note:Pins designated should be in the closed position.

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

KEYBOARD CONTROL SELECT

Keyboard

JX3

RN1

RN2

Internal

pins 2 & 3 closed

Not installed

Installed

External

pins 1 & 2 closed

Installed

Not installed

MISCELLANEOUS TECHNICAL NOTES

When U15 is installed JP5 and JP6 should be set to pins 2 & 3 closed.

When U15 is not installed, JP5 and JP6 should be set to pins 1 & 2 closed.

The exact location for U15 is unknown.

The exact function of X2 is unknown.