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





PEM-2561D (S)

DTK COMPUTER, INC.

PEM-2561D (S)

Processor

80386DX

Processor Speed

25MHz

Chip Set

DTK/SIS

Max. Onboard DRAM

16MB

Cache

None

BIOS

DTK

Dimensions

330mm x 218mm

I/O Options

Parallel port, serial ports (2), floppy drive interface, IDE interface

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J1

Floppy drive interface

J7

IDE interface LED

J2

Serial port 1

J9

Turbo LED

J4

Serial port 2

J8

Reset switch

J5

Parallel port

J10

IDE interface

J6

Riser card

RC1

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

CPU speed select fast

J3

Open

 

CPU speed select slow

J3

pins 1 & 2 closed

 

CPU speed switchable from keyboard

J3

pins 2 & 3 closed

Bus speed select fast

SW1/7

Off

 

Bus speed select slow

SW1/7

On

DRAM page mode/page-interleave select auto

SW1/8

On

 

DRAM page mode/page-interleave mode select page

SW1/8

Off

Parallel port interrupt select IRQ7

W1

pins 1 & 2 closed

 

Parallel port interrupt select IRQ5

W1

pins 2 & 3 closed

NPU disabled

W2

pins 1 & 2 closed

 

NPU enabled

W2

pins 2 & 3 closed

Serial port 1 interrupt select IRQ4

W3

pins 2 & 3 closed

 

Serial port 1 interrupt select IRQ3

W3

pins 1 & 2 closed

Serial port 2 interrupt select IRQ3

W4

pins 1 & 2 closed

 

Serial port 2 interrupt select IRQ4

W4

pins 2 & 3 closed

Floppy drive interface enabled

W5

Closed

 

Floppy drive interface disabled

W5

Open

IDE interface disabled

W12

Open

 

IDE interface enabled

W12

Closed

Monitor type select monochrome

W13

pins 1 & 2 closed

 

Monitor type select color

W13

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

NONE

NONE

NONE

2MB

(1) 256K x 36

(1) 256K x 36

NONE

NONE

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

4MB

(1) 1M x 36

NONE

NONE

NONE

5MB

(1) 1M x 36

(1) 256K x 36

NONE

NONE

6MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

NONE

7MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

(1) 256K x 36

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

9MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

NONE

10MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

13MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

DRAM SWITCH CONFIGURATION

Size

SW1/1

SW1/2

SW1/3

SW1/4

1MB

Off

On

On

On

2MB

On

Off

On

On

3MB

Off

Off

On

On

4MB

On

On

Off

On

4MB

Off

Off

Off

Off

5MB

Off

On

Off

On

6MB

On

Off

Off

On

7MB

Off

Off

Off

On

8MB

On

On

On

Off

9MB

Off

On

On

Off

10MB

On

Off

On

Off

12MB

On

On

Off

Off

13MB

Off

On

Off

Off

16MB

On

On

On

On

DRAM WAIT STATE CONFIGURATION

Wait state

Read state

SW1/5

SW1/6

1

2

On

Off

1

3

Off

On

2

3

On

On

PARALLEL PORT CONFIGURATION

Setting

W6

W7

LPT1

Closed

Closed

LPT2

Open

Open

Disabled

Open

Closed

Disabled

Closed

Open

SERIAL PORT 1 CONFIGURATION

Setting

W6

W7

COM1

Closed

Closed

COM3

Open

Open

Disabled

Open

Closed

Disabled

Closed

Open

SERIAL PORT 2 CONFIGURATION

Setting

W6

W7

COM2

Closed

Closed

COM4

Open

Open

Disabled

Open

Closed

Disabled

Closed

Open