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PTM-1630

DTK COMPUTER, INC.

PTM-1630

Processor

80286 (exact location unknown)

Processor Speed

16MHz

Chip Set

Unidentified

Max. Onboard DRAM

1MB

Cache

None

BIOS

DTK

Dimensions

330mm x 218mm

I/O Options

Local memory slot

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Local memory slot

CN1

Turbo LED

J5

Reset switch

J1

Power LED & keylock

J6

Speaker

J2

Turbo switch

W11

External battery

J3

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

 

Local memory wait state select 0 wait states

W3

Closed

 

Local memory wait state select 1 wait state

W3

Open

 

BIOS wait state select 2 wait states

W4

Open

 

BIOS wait state select 1 wait state

W4

Closed

 

BIOS type select 27128

W8

pins 2 & 3 closed

 

BIOS type select 27256

W8

pins 1 & 2 closed

 

Battery type select internal

W9

Open

 

Battery type select external

W9

Closed

 

Monitor type select monochrome

W10

pins 1 & 2 closed

 

Monitor type select color

W10

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

512KB

(9) 41256

(9) 41256

NONE

NONE

640KB

(9) 41256

(9) 41256

(9) 4164

(9) 4164

1MB

(9) 41256

(9) 41256

(9) 41256

(9) 41256

DRAM JUMPER CONFIGURATION

Size

W6

W7

512KB

Closed

Closed

640KB

Closed

Open

1MB

Open

Closed

DRAM SPEED CONFIGURATION

DRAM speed

Speed

W5

120ns

16MHz/0 ws

Open

100ns

12MHz/0 ws

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

80ns

16MHz/1 ws

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

60ns

12MHz/1 ws

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

NPU SPEED CONFIGURATION

Speed

W1

W2

6MHz

pins 2 & 3 closed

pins 1 & 2 closed

8MHz

pins 1 & 2 closed

pins 3 & 4 closed

10MHz

pins 2 & 3 closed

pins 5 & 6 closed