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PKM-0038Y (VER. 1.00)

DTK COMPUTER, INC.

PKM-0038Y (VER. 1.00)

Processor

80486SX/80487SX/80486DX/80486DX2/P23T

Processor Speed

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

Chip Set

Symphony

Video Chip Set

None

Maximum Onboard Memory

32MB

Maximum Video Memory

None

Cache

64/128/256KB

BIOS

AMI/DTK

Dimensions

252mm x 221mm

I/O Options

32-bit VESA local bus slots (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J5

Turbo LED

J8

Speaker

J6

Reset switch

J9

Turbo switch

J7

32-bit VESA local bus slots

SL1 & SL2

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

J2

Closed

»

Monitor type select monochrome

J26

Pins 1 & 2 closed

 

Monitor type select color

J26

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) 256K x 9

(4) 1M x 9

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) 256K x 9

(4) 4M x 9

17MB

(4) 4M x 9

(4) 256K x 9

20MB

(4) 1M x 9

(4) 4M 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

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

None

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

J13

J14

J15

J16

None

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

64KB

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

128KB

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

256KB

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

CACHE JUMPER CONFIGURATION (CON’T)

Size

J17

J18

J19

J20

None

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

64KB

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

128KB

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

256KB

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

CACHE WAIT STATE CONFIGURATION

Setting

J1

J23

0

Open

Closed

1

Closed

Open

CPU SPEED SELECTION

Speed

J21

J22

J24

J25

20MHz

Pins 1 & 2 closed

Open

Open

Open

25MHz

Pins 1 & 2 closed

Open

Open

Open

33MHz

Pins 1 & 2 closed

Open

Open

Open

50iMHz

Pins 1 & 2 closed

Open

Open

Closed

50MHz

Pins 2 & 3 closed

Closed

Closed

Closed

66iMHz

Pins 1 & 2 closed

Open

Open

Open

CPU TYPE SELECTION

Type

J10

J11

J12

80486SX

Open

Pins 2 & 3 closed

Open

80487SX

Closed

Pins 1 & 2 closed

Pins 2 & 3 closed

80486DX

Closed

Pins 1 & 2 closed

Pins 1 & 2 closed

80486DX2

Closed

Pins 1 & 2 closed

Pins 1 & 2 closed

P23T

Closed

Pins 1 & 2 closed

Pins 2 & 3 closed

VL BUS WAIT STATE SELECTION

Setting

J4

 

0

Open

»

1

Closed

VL BUS SPEED SELECTION

Speed

J3

 

<= 33MHz

Open

»

>33 MHz

Closed