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C386

ADVANCED COMPUTER TECHNOLOGY, LTD.

C386

Processor

80386DX

Processor Speed

25/33/40MHz

Chip Set

ACT

Max. Onboard DRAM

16MB

Cache

32/64/128KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo switch

JP33

Power LED & Keylock

JP40

Speaker

JP35

Reset switch

JP41

Turbo LED

JP37

External battery

JP43

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CPU speed select 33MHz

JP1

pins 1 & 2 closed

 

CPU speed select 25MHz or 40MHz

JP1

pins 2 & 3 closed

Cache enabled

JP4

pins 1 & 2 closed

 

Cache disabled

JP4

pins 2 & 3 closed

I/O channel RAM cacheable

JP5

pins 1 & 2 closed

 

I/O channel RAM non-cacheable

JP5

pins 2 & 3 closed

System BIOS cacheable

JP6

pins 1 & 2 closed

 

System BIOS non-cacheable

JP6

pins 2 & 3 closed

Video BIOS cacheable

JP7

pins 1 & 2 closed

 

Video BIOS non-cacheable

JP7

pins 2 & 3 closed

DRAM speed select fast (70 - 120ns)

JP15

pins 1 & 2 closed

 

DRAM speed select slow (100 - 150ns)

JP15

pins 2 & 3 closed

Parity check enabled

JP32

Closed

 

Parity check disabled

JP32

Open

Bus speed select 8MHz

JP34

pins 1 & 2 closed

 

Bus speed select 11MHz

JP34

pins 2 & 3 closed

Keyboard controller turbo pin select 30

JP38

pins 3 & 4 closed

 

Keyboard controller turbo pin select 24

JP38

pins 5 & 6 closed

 

Keyboard controller turbo pin select 23

JP38

pins 7 & 8 closed

 

Keyboard controller turbo pin select none

JP38

pins 1 & 2 closed

Monitor type select color

JP39

pins 1 & 2 closed

 

Monitor type select monochrome

JP39

pins 2 & 3 closed

Power good signal detect from power supply

JP42

pins 1 & 2 closed

 

Power good signal detect from board

JP42

pins 2 & 3 closed

Battery select internal

JP44

pins 1 & 2 closed

 

Battery select external

JP44

pins 2 & 3 closed

CACHE CONFIGURATION

Size

Bank 0

32KB

(5) 8K x 8

128KB

(5) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP2

JP3

32KB

pins 2 & 3 closed

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

128KB

pins 1 & 2 closed

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

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(4) 256K x 9

NONE

NONE

NONE

2MB

(4) 256K x 9

(4) 256K x 9

NONE

NONE

4MB

(4) 1M x 9

NONE

NONE

NONE

6MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

10MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

NONE

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

DRAM JUMPER CONFIGURATION

Size

JP8

JP9

JP10

JP11

JP12

JP13

JP14

1MB

1 & 2

2 & 3

2 & 3

2 & 3

1 & 2

1 & 2

1 & 2

2MB

1 & 2

1 & 2

2 & 3

2 & 3

2 & 3

1 & 2

1 & 2

4MB

1 & 2

2 & 3

2 & 3

1 & 2

1 & 2

1 & 2

2 & 3

6MB

2 & 3

1 & 2

2 & 3

1 & 2

1 & 2

2 & 3

1 & 2

8MB

1 & 2

1 & 2

2 & 3

1 & 2

2 & 3

1 & 2

2 & 3

10MB

2 & 3

2 & 3

1 & 2

1 & 2

2 & 3

2 & 3

1 & 2

12MB

1 & 2

2 & 3

1 & 2

1 & 2

1 & 2

2 & 3

2 & 3

16MB

1 & 2

1 & 2

1 & 2

1 & 2

2 & 3

2 & 3

2 & 3

Note: Pins designated should be in the closed position.