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





MODEL D3/SX (VERSION 1)

LEADING EDGE PRODUCTS, INC.

MODEL D3/SX (VERSION 1)

Processor

80386SX

Processor Speed

16MHz

Chip Set

Zymos

Max. onboard DRAM

4MB

Cache

None

BIOS

Leading Edge

Dimensions

325mm x 308mm

I/O Options

Floppy drive interface, mouse port, parallel port, serial ports (2)

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Mouse port

CN1

Parallel port

CN4

Serial port 2

CN2

Floppy drive interface

CN5

Serial port 1

CN3

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Floppy drive interface enabled

J19

pins 2 & 3 closed

 

Floppy drive interface disabled

J19

pins 1 & 2 closed

Monitor type select color

J26

pins 2 & 3 closed

 

Monitor type select monochrome

J26

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

J22

J23

512KB

(2) 256K x 9

None

pins 2 & 3

pins 2 & 3

1MB

(2) 256K x 9

(2) 256K x 9

pins 1 & 2

pins 2 & 3

2MB

(2) 1M x 9

NONE

pins 2 & 3

pins 1 & 2

4MB

(2) 1M x 9

(2) 1M x 9

pins 1 & 2

pins 1 & 2

Note:Pins designated should be in the closed position.

PARALLEL PORT CONFIGURATION

IRQ

ADDRESS

J17

J20

7

378h

pins 2 & 3 closed

pins 2 & 3 closed

 

5

378h

pins 2 & 3 closed

pins 1 & 2 closed

 

7

278h

pins 1 & 2 closed

pins 2 & 3 closed

 

5

278h

pins 1 & 2 closed

pins 1 & 2 closed

 

Disabled

Disabled

Open

Open

SERIAL PORT CONFIGURATION

Port 1

Port 2

J16

J18

COM1

COM2

pins 1 & 2 closed

pins 1 & 2 closed

 

COM1

COM4

pins 2 & 3 closed

pins 1 & 2 closed

 

COM1

Disabled

Open

pins 1 & 2 closed

 

COM3

COM2

pins 1 & 2 closed

pins 2 & 3 closed

 

Disabled

COM2

pins 1 & 2 closed

Open

 

COM3

COM4

pins 2 & 3 closed

pins 2 & 3 closed

 

Disabled

COM4

pins 2 & 3 closed

Open

 

Disabled

Disabled

Open

Open

MOUSE PORT INTERRUPTS

IRQ

J11

J12

J13

J14

IRQ9

Closed

Open

Open

Open

 

IRQ3

Open

Closed

Open

Open

 

IRQ4

Open

Open

Closed

Open

 

IRQ5

Open

Open

Open

Closed