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





386SX SYSTEM

UNIDENTIFIED

386SX SYSTEM

Processor

80386SX

Processor Speed

16/25MHz

Chip Set

Headland

Video Chip Set

Trident

Maximum Onboard Memory

6MB

Maximum Video Memory

1MB

Cache

None

BIOS

Phoenix

Dimensions

396mm x 368mm

I/O Options

Floppy drive interface, game port, IDE interface, parallel port, serial ports (2), VGA port, riser slot, modem/fax interface

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Game port

CN1

Modem/fax interface

J25

VGA port

CN2

IDE interface

J27

Parallel port

CN3

IDE interface LED

J28

Serial port 2

CN4

Floppy drive interface LED

J29

Serial port 1

CN5

Power LED

J30

Chassis fan power

J14

Floppy drive interface

J31

Reset switch

J17

Riser slot

SL1

Speaker

J21

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

Game port enabled

J6

Pins 1 & 2 closed

 

Game port disabled

J6

Pins 2 & 3 closed

 

Serial port 2 enabled

J8

Pins 1 & 2 closed

 

Serial port 2 disabled

J8

Pins 2 & 3 closed

 

Parallel port enabled

J9

Pins 1 & 2 closed

 

Parallel port disabled

J9

Pins 2 & 3 closed

 

Serial port 2 address select 2F8

J10

Pins 1 & 2 closed

 

Serial port 2 address select 2E8

J10

Pins 2 & 3 closed

 

Parallel port address select 378

J11

Pins 1 & 2 closed

 

Parallel port address select 278

J11

Pins 2 & 3 closed

 

Serial port 1 enabled

J12

Pins 1 & 2 closed

 

Serial port 1 disabled

J12

Pins 2 & 3 closed

 

Serial port 1 address select 3F8

J13

Pins 1 & 2 closed

 

Serial port 1 address select 3E8

J13

Pins 2 & 3 closed

 

Monitor type select color

J15

Pins 1 & 2 closed

 

Monitor type select monochrome

J15

Pins 2 & 3 closed

 

Video mode select interlaced

J18

Closed

 

Video mode select non interlaced

J18

Open

 

NPU synchronous with CPU

J20

Open

 

NPU asynchronous with CPU

J20

Closed

 

IDE interface enabled

J23

Pins 1 & 2 closed

 

IDE interface disabled

J23

Pins 2 & 3 closed

 

Floppy drive interface enabled

J24

Pins 1 & 2 closed

 

Floppy drive interface disabled

J24

Pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

512KB

512KB

None

None

1.5MB

512KB

512KB

(2) 256K x 9

None

2MB

512KB

512KB

(2) 256K x 9

(2) 256K x 9

3MB

512KB

512KB

(2) 1M x 9

None

5MB

512KB

512KB

(2) 1M x 9

(2) 1M x 9

3MB

1MB

None

(2) 256K x 9

(2) 256K x 9

4MB

1MB

None

(2) 1M x 9

None

6MB

1MB

None

(2) 1M x 9

(2) 1M x 9

Note: Bank 0 or banks 0 & 1 are factory installed and is not configurable.

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

256KB

(2) 44256

None

None

None

512KB

(2) 44256

(2) 44256

None

None

1MB

(2) 44256

(2) 44256

(2) 44256

(2) 44256