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





MODEL D4/MT

LEADING EDGE PRODUCTS, INC.

MODEL D4/MT

Processor

80486SX/80486DX/80486DX2

Processor Speed

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

Chip Set

OPTI

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit local bus card slot, CPU card, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port

CN1

IDE interface

CN5

PS/2 mouse port

CN2

External battery

CN6

Parallel port

CN3

CPU card slot

SL1

Floppy drive interface

CN4

32-bit local bus slot

SL2

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

JP2

Closed

 

Monitor type select monochrome

JP2

Open

CMOS memory normal operation

JP3

pins 1 & 2 closed

 

CMOS memory clear

JP3

pins 2 & 3 closed

Standard local bus card installed

JP4

pins 1 & 2 closed

 

Standard local bus card not installed

JP4

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

5MB

(4) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

17MB

(4) 4M x 9

(4) 256K x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG (U30)

TAG (U41)

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

NONE

128KB

(4) 32K x 8

NONE

(1) 8K x 8

NONE

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

On

Off

Off

256KB

pins 2 & 3 closed

On

On

On

On

CPU TYPE CONFIGURATION

CPU Type

JP1

JP2

JP3

80486SX

Open

pins 1 & 2 closed

pins 1 & 2 closed

80486DX

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

80486DX2

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed