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PKM-0038S (VER. 1.00)

DTK COMPUTER, INC.

PKM-0038S (VER. 1.00)

Processor

CX486M6/80486SX/CX486S2/SL80486SX/CX486M7/80486DX/SL80486DX/ 80486DX2/SL80486DX2/P24D/Pentium Overdrive

Processor Speed

20/25/33/40/50(internal)/50/66(internal)MHz

Chip Set

Unidentified

Max. Onboard DRAM

128MB

Cache

128/256/512KB

BIOS

Award

Dimensions

250mm x 220mm

I/O Options

32-bit VESA local bus slots (3), green PC connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo switch

J3 pins 3 & 4

Power LED & keylock

J7

Turbo LED

J4

Green PC connector

JP26

Speaker

J5

32-bit VESA local bus slots

SL1 - SL3

Reset switch

J6

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Turbo switch enabled

J3

pins 3 & 4 closed

 

Turbo switch disabled

J3

pins 4 & 5 closed

CMOS memory normal operation

JP16

pins 2 & 3 closed

 

CMOS memory clear

JP16

pins 1 & 2 closed

Monitor type select monochrome/EGA/VGA

JP17

Open

 

Monitor type select CGA

JP17

Closed

CPU type select any CPU installed

JP18

Open

 

CPU type select CX486S2 only

JP18

Closed

Factory configured - do not alter

JP19

pins 1 & 2 closed

CPU clock delay select CLKIN delays CPUCLK

JP20

pins 2 & 3 closed

 

CPU clock delay select CLKIN = CPUCLK

JP20

pins 1 & 2 closed

Factory configured - do not alter

JP23

pins 1 & 2 closed

Factory configured - do not alter

JP27

Open

Factory configured - do not alter

JP32

pins 1 & 2 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) 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

64MB

(4) 16M x 9

NONE

65MB

(4) 256K x 9

(4) 16M x 9

68MB

(4) 1M x 9

(4) 16M x 9

80MB

(4) 4M x 9

(4) 16M x 9

128MB

(4) 16M x 9

(4) 16M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

512KB

(4) 128K x 8

NONE

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP1

JP2

JP3

JP4

128KB

1 & 2

1 & 2

1 & 2, 3 & 4

1 & 2

256KB

2 & 3

2 & 3

2 & 3, 4 & 5

1 & 2

512KB

1 & 2

2 & 3

1 & 2, 3 & 4

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JP8

JP9

JP10

JP11

JP12

CX486M6

2 & 3

Closed

2 & 3

Open

2 & 3, 4 & 5

80486SX

2 & 3

Open

2 & 3

Open

Open

SL80486SX

2 & 3

Open

2 & 3

Open

3 & 4

CX486M7

1 & 2

Closed

2 & 3

2 & 3

2 & 3

80486DX

1 & 2

Closed

2 & 3

2 & 3

Open

SL80486DX

1 & 2

Closed

2 & 3

2 & 3

3 & 4

80486DX2

1 & 2

Closed

2 & 3

2 & 3

Open

SL80486DX2

1 & 2

Closed

2 & 3

2 & 3

3 & 4

P24D

1 & 2

Closed

1 & 2

2 & 3

1 & 2, 3 & 4

P24T

1 & 2

Closed

1 & 2

1 & 2

3 & 4

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CONT)

Type

JP13

JP14

JP15

JP21

CX486M6

Open

1 & 2, 3 & 4

2 & 3

1 & 2

80486SX

Open

Open

Open

2 & 3

SL80486SX

1 & 2

2 & 3

4 & 5

2 & 3

CX486M7

Open

1 & 2, 3 & 4

2 & 3

1 & 2

80486DX

Open

Open

Open

2 & 3

SL80486DX

1 & 2

2 & 3

4 & 5

2 & 3

80486DX2

Open

Open

Open

2 & 3

SL80486DX2

1 & 2

2 & 3

4 & 5

2 & 3

P24D

2 & 3

2 & 3

4 & 5

2 & 3

P24T

Open

2 & 3

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CONT)

Type

JP22

JP24

JP25

JP30

JP31

CX486M6

2 & 3

2 & 3

2 & 3

Open

Open

80486SX

1 & 2

Open

Open

Open

Open

SL80486SX

1 & 2

Open

Open

Open

Open

CX486M7

2 & 3

2 & 3

2 & 3

Open

Open

80486DX

1 & 2

Open

Open

Open

Open

SL80486DX

1 & 2

Open

Open

Open

Open

80486DX2

1 & 2

Open

Open

Open

Open

SL80486DX2

1 & 2

Open

Open

Open

Open

P24D

1 & 2

Open

1 & 2

Closed

Closed

P24T

1 & 2

1 & 2

1 & 2

Open

Open

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION

Speed

JP5

JP6

JP7

20MHz

Open

Open

Open

25MHz

Open

Closed

Open

33MHz

Closed

Closed

Closed

40MHz

Open

Closed

Closed

50iMHz

Open

Closed

Open

50MHz

Closed

Open

Open

66iMHz

Closed

Closed

Closed

VL BUS WAIT STATE CONFIGURATION

Wait states

JP28

0 wait states

pins 1 & 2 closed

1 wait state

pins 2 & 3 closed

VL BUS SPEED CONFIGURATION

CPU speed

JP29

<= 33MHz

pins 1 & 2 closed

> 33MHz

pins 2 & 3 closed