Processor

80386DX

Processor Speed

25/33MHz

Chip Set

DTK

Max. Onboard DRAM

16MB (8MB on external memory card)

Cache

64/256KB

BIOS

AMI/Award/DTK/Phoenix

Dimensions

333mm x 222mm

I/O Options

32-bit external memory card slot (PEI-307)

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J1

Turbo LED

J4

Speaker

J2

Turbo switch

JP16

Reset switch

J3

32-bit external memory card

S1

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

BIOS type select 27256

JP8

pins 1 & 2 closed

BIOS type select 27512

JP8

pins 2 & 3 closed

»

DMA clock select 6/8MHz

JP14

Open

»

DMA clock select 3/4MHz

JP14

Closed

»

NPU disabled

JP15

Closed

NPU enabled

JP15

Open

»

CPU speed select fast

JP16

Open

CPU speed select slow

JP16

pins 1 & 2 closed

CPU speed select switchable from keyboard

JP16

pins 2 & 3 closed

»

Monitor type select monochrome

SW1/4

Off

Monitor type select color

SW1/4

On

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) 1M x 9

8MB

(4) 1M x 9

(4) 256K x 9

DRAM JUMPER/SWITCH CONFIGURATION

Size

JP11

JP12

SW1/1

SW1/2

SW1/3

1MB

2 & 3

2 & 3

On

On

On

2MB

2 & 3

2 & 3

On

On

On

4MB

1 & 2

1 & 2

On

Off

On

5MB

1 & 2

2 & 3

Off

Off

On

8MB

1 & 2

1 & 2

On

On

Off

Note: Jumpers JP9 and JP10 are for use with the 32-bit external memory card. Pins designated should be in the closed position.

CACHE CONFIGURATION

Size

Bank 0

TAG

64KB

(8) 16K x 4

(2) 16K x 4

256KB

(8) 64K x 4

(2) 64K x 4

Models 2533D & 3333D are supplied with 256KB cache soldered on main board.