HwMuseum | Index

FIRST INTERNATIONAL COMPUTER, INC.

386-20/25V

Processor

80386DX

Processor Speed

20/25MHz

Chip Set

Symphony

Max. Onboard DRAM

8MB

Cache

None

BIOS

Award/Phoenix

Dimensions

330mm x 218mm

I/O Options

32-bit external memory card slot

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

J12

Power LED & keylock

J15

Speaker

J13

32-bit external memory card

S1

Turbo LED

J14

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Factory configured - do not alter

J3

Open

»

Factory configured - do not alter

J4

Open

»

Memory select 2 wait states/ I/O select 6 wait states

J5

Closed

 

Memory select 1 wait state/ I/O select 4 wait states

J5

Open

 

BIOS type select 27256

J6

pins 1 & 2 closed

 

BIOS type select 27512

J6

pins 2 & 3 closed

 

CPU speed select 20MHz

J9

Open

 

CPU speed select 25MHz

J9

Closed

»

CPU speed select switchable from keyboard

J15

pins 2 & 3 closed

 

CPU speed select fast

J15

pins 1 & 2 closed

 

CPU speed select slow

J15

Open

 

Bus speed select iOSC/2

J17

pins 1 & 2 closed

 

Bus speed select 8MHz

J17

pins 2 & 3 closed

»

Shadow RAM enabled

SW1/switch 6

closed

 

Shadow RAM disabled

SW1/switch 6

open

 

DRAM read select 2 wait states/write select 2 wait states

SW1/switch 7

SW1/switch 8

closed

closed

 

DRAM read select 2 wait states/write select 1 wait state

SW1/switch 7

SW1/switch 8

closed

open

 

DRAM read select 1 wait state/write select 1 wait state

SW1/switch 7

SW1/switch 8

open

open

 

NPU enabled

SW1/switch 9

closed

 

NPU disabled

SW1/switch 9

open

»

Monitor type select monochrome

SW1/switch 10

open

 

Monitor type select color

SW1/switch 10

closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(4) 256K x 9

NONE

NONE

NONE

2MB

(4) 256K x 9

(4) 256K x 9

NONE

NONE

3MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

NONE

4MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

NONE

NONE

6MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

10MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

NONE

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

Note:Banks 2 & 3 are utilized when a 32-bit external memory card is installed at S1.

DRAM JUMPER/SWITCH CONFIGURATION

Size

J7

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

1MB

2 & 3

Off

Off

Off

Off

Off

2MB

2 & 3

On

Off

Off

Off

Off

3MB

2 & 3

Off

On

Off

Off

Off

4MB

2 & 3

On

On

Off

Off

Off

4MB

1 & 2

Off

Off

On

On

On

6MB

2 & 3

Off

On

On

Off

Off

8MB

1 & 2

On

Off

On

On

On

10MB

2 & 3

On

On

On

Off

Off

12MB

1 & 2

Off

On

On

On

On

16MB

1 & 2

On

On

On

On

On

Note:Pins designated should be in the closed position.

DRAM READ/WRITE CONFIGURATION

Wait state

Read state

SW1/7

SW1/8

2

2

On

On

2

1

On

Off

1

1

Off

Off