UNIDENTIFIED

NT-386/CT

Processor

80386DX

Processor Speed

16/20/25/33MHZ

Chip Set

C & T Peak/DM

Max. onboard DRAM

32MB

Cache

32/64/128/256KB

BIOS

Unknown

Dimensions

330mm x 218mm

I/O Options

32-bit external memory card

NPU Options

80387DX/3167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP5

Turbo switch

JP28

Power LED & keylock

JP21

Reset switch

JP29

Speaker

JP24

32-bit external memory card

S1

Turbo LED

JP25

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Monitor type select color

JP3

Closed

 

Monitor type select monochrome

JP3

Open

»

NPU synchronous with CPU

JP26

Open

 

NPU asynchronous

JP26

Closed

»

Power good signal detect from board

JP27

pins 2 & 3 closed

 

Power good signal detect from power supply

JP27

pins 1 & 2 closed

»

CMOS memory normal operation

JP30

pins 2 & 3 closed

 

CMOS memory clear

JP30

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

JP1

1MB

(4) 256K x 9

NONE

NONE

NONE

pins 1 & 2

2MB

(4) 256K x 9

(4) 256K x 9

NONE

NONE

pins 1 & 2

3MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

NONE

pins 1 & 2

4MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

pins 1 & 2

4MB

(4) 1M x 9

NONE

NONE

NONE

pins 1 & 2

5MB

(4) 256K x 9

(4) 1M x 9

NONE

NONE

pins 2 & 3

6MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

NONE

pins 2 & 3

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

pins 1 & 2

10MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

pins 2 & 3

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

NONE

pins 1 & 2

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

pins 1 & 2

16MB

(4) 4M x 9

NONE

NONE

NONE

pins 1 & 2

17MB

(4) 256K x 9

(4) 4M x 9

NONE

NONE

pins 2 & 3

18MB

(4) 256K x 9

(4) 256K x 9

(4) 4M x 9

NONE

pins 2 & 3

20MB

(4) 1M x 9

(4) 4M x 9

NONE

NONE

pins 2 & 3

24MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

NONE

pins 2 & 3

32MB

(4) 4M x 9

(4) 4M x 9

NONE

NONE

pins 1 & 2

33MB

(4) 4M x 9

(4) 4M x 9

(4) 256K x 9

NONE

pins 2 & 3

34MB

(4) 4M x 9

(4) 4M x 9

(4) 256K x 9

(4) 256K x 9

pins 2 & 3

36MB

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

NONE

pins 2 & 3

40MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

pins 2 & 3

48MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

NONE

pins 1 & 2

64MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

pins 1 & 2

Note:Banks 2 & 3 are located on an optional 32-bit external memory card.

Pins designated should be in the closed position.

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

32KB

(4) 8K x 8

NONE

(2) 16K x 4

64KB

(4) 8K x 8

(4) 8K x 8

(2) 16K x 4

128KB

(4) 32K x 8

NONE

(2) 64K x 4

256KB

(4) 32K x 8

(4) 32K x 8

(2) 64K x 4

CACHE JUMPER CONFIGURATION

Size

JP6

JP7

JP8

JP9

32KB

Open

Closed

Closed

Closed

64KB

Open

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

128KB

Closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

256KB

Closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

CACHE JUMPER CONFIGURATION

Size

JP11

JP12

JP13

JP14

JP15

JP16

JP17

JP18

JP19

JP20

32KB

Open

Open

Closed

Open

Closed

Open

2 & 3

Open

2 & 3

Open

64KB

Open

Open

Closed

Closed

Closed

Open

2 & 3

Open

Open

Closed

128KB

Open

Closed

Open

Closed

Closed

Open

1 & 2

1 & 2

Open

Closed

256KB

Closed

Closed

Open

Closed

Open

Closed

1 & 2

1 & 2

1 & 2

Closed