DTK COMPUTER, INC.

PKM-0037Y (VER. 1.01)

Processor

80486SX/80487SX80486DX/ODP486SX/80486DX2

Processor Speed

20/25/33/50 (Internal)/50/66 (Internal)MHz

Chip Set

Symphony

Max. onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI/DTK

Dimensions

229mm x 221mm

I/O Options

None

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J1

Reset switch

J4

Speaker

J2

Turbo LED

J5

Turbo LED

J3

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Monitor type select monochrome

J8

pins 1 & 2 closed

 

Monitor type select color

J8

pins 2 & 3 closed

»

Cache write wait state select 0 wait states

J9

Closed

 

Cache write wait state select 1 wait state

J9

Open

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) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

17MB

(4) 256K x 9

(4) 4M x 9

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 32K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

J14

J15

J16

J17

J18

J19

J20

J21

64KB

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

128KB

2 & 3

1 & 2

1 & 2

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

256KB

2 & 3

2 & 3

2 & 3

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

Note:Pins designated should be in the closed position.

CPU SPEED CONFIGURATION

Speed

J7

J10

J12

J13

20MHz

Open

Open

pins 1 & 2 closed

Open

25Mhz

Open

Open

pins 1 & 2 closed

Open

33Mhz

Open

Open

pins 1 & 2 closed

Open

50i MHz

Closed

Open

pins 1 & 2 closed

Open

50MHz

Closed

Closed

pins 2 & 3 closed

Closed

66i MHz

Open

Open

pins 1 & 2 closed

Open

CPU TYPE CONFIGURATION

Type

J6

J11

J30

J31

80486SX PGA

Closed

Open

pins 2 & 3 closed

Open

80486SX PQFP

Open

Open

pins 1 & 2 closed

Open

80487SX PGA

Closed

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

80486DX PGA

Closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

ODP486SX PGA

Closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

80486DX2 PGA

Closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed