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MODEL D3/25

LEADING EDGE PRODUCTS, INC.

MODEL D3/25

Processor

80386DX

Processor Speed

25MHz

Chip Set

Unknown

Max. Onboard DRAM

8MB

Cache

32KB

BIOS

Phoenix

Dimensions

330mm x 218mm

I/O Options

16-bit external memory card slot, bus mouse port, floppy drive interface (2),

IDE interface, parallel port, serial ports (2)

NPU Options

80387DX

CONNECTIONS

Purpose

Location

Purpose

Location

Bus mouse port

J11

Reset switch/LED

JP7

Serial port 1

J12

Keylock

JP8

Serial port 2

J13

Floppy drive interface

J23

Parallel port

J14

Floppy drive interface

J24

Speaker

J15

16-bit external memory card slot

S1

Note:The exact locations of J11 - J15, JP7, JP8, JP23 and JP24 are unknown.

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select monochrome

J1

pins 2 & 3 closed

 

Monitor type select color

J1

pins 1 & 2 closed

Floppy drive interface enabled

J3

Closed

 

Floppy drive interface disabled

J3

Open

NPU disabled

J10

pins 7 & 8 closed

 

NPU enabled

J10

pins 5 & 6 closed

Bus mouse port enabled

JPA

Closed

 

Bus mouse port disabled

JPA

Open

Factory configured - do not alter

JP1

N/A

Factory configured - do not alter

JP2

N/A

Factory configured - do not alter

JP3

N/A

Factory configured - do not alter

JP11

Open

Factory configured - do not alter

JP12

Closed

Factory configured - do not alter

JP13

Closed

Factory configured - do not alter

JP14

Closed

Note:The exact locations of J1, J3, J10, JPA, JP12, JP13, and JP14 are unknown.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

4MB

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

Note:The exact locations of Bank 0 and Bank 1 are unknown.

EXTERNAL MEMORY CONFIGURATION

Size

JP10/pins 1 & 2

JP10/pins 3 & 4

4MB

Closed

Open

8MB

Open

Closed

16MB

Closed

Closed

BUS MOUSE IRQ INTERRUPT SELECT

IRQ

J2

IRQ5

pins 1 & 5 closed

 

IRQ3

pins 2 & 6 closed

 

IRQ4

pins 3 & 7 closed

 

IRQ9

pins 4 & 8 closed

Note:The exact location of J2 is unknown.