HwMuseum | Index

MORSE TECHNOLOGIES, INC.

M3

Processor

80386DX

Processor Speed

25/33/40MHz

Chip Set

Morse

Max. Onboard DRAM

16MB

Cache

32/128KB

BIOS

AMI

Dimensions

220mm x 220mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP2

Turbo LED

JP12

Power LED & keylock

JP10

Reset switch

JP13

Turbo switch

JP11

Speaker

JP14

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Battery type select internal 3.6VDC

JP3

Closed

 

Battery type select external 6VDC

JP3

Open

»

Monitor type select color

JP4

pins 2 & 3 closed

 

Monitor type select monochrome

JP4

pins 1 & 2 closed

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) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

17MB

(4) 4M x 9

(4) 256K x 9

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

TAG (U30)

Dirty Bit (U29)

32KB

(4) 8K x 8

(1) 8K x 8

(1) 16K x 4

128KB

(4) 32K x 8

(1) 32K x 8

(1) 16K x 4

Note:Installing a chip at U29 enables write-back memory caching.

CACHE JUMPER CONFIGURATION

Size

JP6

JP7

JP8

JP9

32KB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

128KB

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed