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





MODEL D4 PLUS

LEADING EDGE PRODUCTS, INC.

MODEL D4 PLUS

Processor

80486SX/80487SX/80486DX/80486DX2

Processor Speed

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

Chip Set

Unidentified

Max. Onboard DRAM

32MB

Cache

64/128/256KB (on CPU card)

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

External CPU card, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

CN1

Floppy drive interface

CN6

Serial port 1

CN3

IDE interface

CN7

Serial port 2

CN4

CPU card slot

SL1

Parallel port

CN5

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

JP1

Closed

 

Monitor type select monochrome

JP1

Open

Parallel port enabled (printer)

JP2

Open

 

Parallel port disabled

JP2

Closed

CMOS memory normal operation

JP3

pins 1 & 2 closed

 

CMOS memory clear

JP3

pins 2 & 3 closed

Standard local bus card installed

JP5

pins 1 & 2 closed

 

Standard local bus card not installed

JP5

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG (U12)

TAG (U13)

64KB

(4) 8K x 8

(4) 8K x 8

NONE

(1) 8K x 8

128KB

(4) 32K x 8

NONE

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 8K x 8

(1) 8K x 8

CACHE JUMPER/SWITCH CONFIGURATION

Size

JP1

SW1/1

SW1/2

SW1/3

SW1/4

64KB

pins 2 & 3 closed

Off

Off

Off

Off

128KB

pins 1 & 2 closed

On

Off

Off

On

256KB

pins 2 & 3 closed

On

On

Off

On

CPU TYPE CONFIGURATION

Type

JP3

80486SX

pins 5 & 6 closed

80487SX

pins 2 & 3, 4 & 5, 6 & 7 closed

80486DX

pins 1 & 2, 4 & 5, 6 & 7 closed

80486DX2

pins 1 & 2, 4 & 5, 6 & 7 closed