80386 CACHE SYSTEM Motherboard Settings and Configuration

Processor

80386DX

Processor Speed

25/33MHz

Chip Set

C & T

Max. Onboard DRAM

16MB

Cache

64/256KB

BIOS

AMI

Dimensions

355mm x 304mm

I/O Options

None

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo switch

J1

Turbo LED

J4

Speaker

J2

Reset switch

J5

Power LED & keylock

J3

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Bus (8-bit) speed select 7 wait states

JP1

pins 1 & 2 closed

Bus (8-bit) speed select 5 wait states

JP1

pins 2 & 3 closed

»

Bus (16-bit) speed select 5 wait states

JP2

pins 2 & 3 closed

Bus (16-bit) speed select 3 wait states

JP2

pins 1 & 2 closed

»

Bus speed select 6/8MHz

JP3

pins 2 & 3 closed

Bus speed select 12/16MHz

JP3

pins 1 & 2 closed

»

Monitor type select monochrome

JP4

pins 2 & 3 closed

Monitor type select color

JP4

pins 1 & 2 closed

»

NPU disabled

JP5

Open

NPU enabled

JP5

Closed

»

NPU mode select synchronous

JP17

Open

NPU mode select asynchronous

JP17

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

3MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

NONE

4MB

(4) 1M x 9

NONE

NONE

NONE

4MB

NONE

NONE

NONE

(36) 411000

5MB

(4) 256K x 9

(4) 1M x 9

NONE

NONE

7MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

(36) 411000

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

8MB

(4) 1M x 9

NONE

NONE

(36) 411000

9MB

(4) 1M x 9

(4) 1M x 9

(4) 256K x 9

NONE

9MB

(4) 1M x 9

(4) 256K x 9

NONE

(36) 411000

10MB

(4) 1M x 9

(4) 256K x 9

(4) 256K x 9

(36) 411000

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

NONE

12MB

(4) 1M x 9

(4) 1M x 9

NONE

(36) 411000

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(36) 411000

DRAM JUMPER CONFIGURATION

Size

JP8

JP9

JP10

JP12

JP13

JP14

JP15

JP16

1MB

2 & 3

N/A

N/A

Setting 1

Closed

Closed

Closed

Closed

2MB

2 & 3

2 & 3

N/A

Setting 1

Closed

Closed

Closed

Open

3MB

2 & 3

2 & 3

2 & 3

Setting 1

Closed

Closed

Open

Closed

4MB

1 & 2

N/A

N/A

Setting 1

Closed

Closed

Open

Open

4MB

N/A

N/A

N/A

Setting 2

Closed

Closed

Open

Open

5MB

2 & 3

1 & 2

N/A

Setting 1

Closed

Open

Closed

Closed

7MB

2 & 3

2 & 3

2 & 3

Setting 1

Closed

Open

Closed

Open

8MB

1 & 2

1 & 2

N/A

Setting 1

Closed

Open

Open

Closed

8MB

N/A

1 & 2

N/A

Setting 2

Closed

Open

Open

Closed

9MB

1 & 2

1 & 2

2 & 3

Setting 1

Closed

Open

Open

Open

9MB

N/A

1 & 2

2 & 3

Setting 2

Closed

Open

Open

Open

10MB

2 & 3

1 & 2

2 & 3

Setting 2

Open

Closed

Closed

Closed

12MB

1 & 2

1 & 2

1 & 2

Setting 1

Open

Closed

Closed

Open

12MB

N/A

1 & 2

1 & 2

Setting 2

Open

Closed

Closed

Open

16MB

1 & 2

1 & 2

1 & 2

Setting 1

Open

Closed

Open

Closed

Note: Setting 1=Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12, 13 & 14, 15 & 16, 17 & 18, 19 & 20, 21 & 22, 23 & 24 closed.

Setting 2=Pins 1 & 24, 2 & 23, 3 & 22, 4 & 21, 5 & 20, 6 & 19, 7 & 18, 8 & 17, 9 & 16, 10 & 15, 11 & 14, 12 & 13 closed

CACHE CONFIGURATION

Size

Bank 0

64KB

(10) 16K x 4

256KB

(10) 64K x 4

CACHE JUMPER CONFIGURATION

Size

JP6

JP7

64KB

pins 1 & 2 closed

pins 1 & 2 closed

256KB

pins 2 & 3 closed

pins 2 & 3 closed