DTK COMPUTER, INC.

PLM-2531P/3331P/5031P

Processor

80486SX/80487SX/ODP80486SX/80486DX/80486DX2

Processor Speed

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

Chip Set

OPTI

Max. Onboard DRAM

128MB

Cache

64/128/256KB

BIOS

AMI/DTK

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

J1

Speaker

J4

Turbo switch

J2

Power LED & keylock

J5

Turbo LED

J3

External battery

J12

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Turbo switch enabled

J2

Closed

 

turbo switch disabled

J2

Open

»

Monitor type select monochrome

J11

Open

 

Monitor type select color

J11

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

4MB

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

64MB

(4) 16M x 9

NONE

128MB

(4) 16M x 9

(4) 16M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG (U30)

Dirty (U31)

TAG (U32)

TAG (U33)

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 1

(1) 8K x 1

(1) 8K x 8

NONE

128KB

(4) 32K x 8

NONE

(1) 8K x 1

(1) 8K x 1

(1) 8K x 8

NONE

256KB

(4) 32K x 8

(4) 32K x 8

(1) 8K x 1

(1) 8K x 1

NONE

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

J10

64KB

pins 9 & 10 closed

128KB

pins 1 & 2, 5 & 6, 11 & 12 closed

256KB

pins 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10 closed

CPU TYPE CONFIGURATION

Type

J9

80486SX

pins 9 & 10 closed

80487SX

pins 3 & 4, 5 & 6, 7 & 8 closed

ODP80486SX

pins 3 & 4, 5 & 6, 7 & 8 closed

80486DX/DX2

pins 1 & 2, 3 & 4, 5 & 6 closed

CPU SPEED CONFIGURATION

Speed

J6

J7

J8

25MHz

pins 2 & 3 closed

Open

Closed

33MHz

pins 1 & 2 closed

Closed

Open

40MHz

pins 2 & 3 closed

Open

Closed

50iMHz

pins 2 & 3 closed

Open

Closed

50MHz

pins 2 & 3 closed

Open

Closed

66iMHz

pins 1 & 2 closed

Closed

Open