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NT-386/CT

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