M-319B Motherboard Settings and Configuration

Processor

80386DX

Processor Speed

25/33/40MHz

Chip Set

PC CHIPS

Max. Onboard DRAM

32MB

Cache

32/64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J1

Speaker

J4

Turbo switch

J2

Reset switch

J5

Turbo LED

J3

External battery

J6

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Monitor type select color

W11

Closed

Monitor type select monochrome

W11

Open

»

Battery type select internal

W13

Closed

Battery type select external

W13

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

5MB

(4) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG (U4)

32KB

(4) 8K x 8

Bank 0

(1) 8K x 8

64KB

(8) 8K x 8

Banks 0 & 1

(1) 8K x 8

128KB

(4) 32K x 8

Bank 0

(1) 8K x 8

256KB

(8) 32K x 8

Banks 0 & 1

(1) 32K x 8

Note:To cache main memory above 16MB, insert 1 16K x 4 into socket U3. For write-back cache mode, insert 1 16K x 4 SRAM into socket U6.

CACHE JUMPER CONFIGURATION

Size

W3

W4

W5

W6

W7

W14

32KB

1 & 2

1 & 2

1 & 2

2 & 3

Open

2 & 3

64KB

2 & 3

1 & 2

1 & 2

1 & 2

Open

1 & 2

128KB

2 & 3

2 & 3

1 & 2

2 & 3

1 & 2

1 & 2

256KB

2 & 3

2 & 3

2 & 3

1 & 2

2 & 3

1 & 2

Note: Pins designated should be in the closed position.

NPU TYPE CONFIGURATION

Setting

W1

W10

Not installed

Open

Open

Installed

Closed

Closed

NPU TYPE CONFIGURATION

Setting

W8

W9

Synchronous

pins 2 & 3 closed

Closed

Asynchronous

pins 1 & 2 closed

Open