DIAMOND FLOWER, INC.

386SX-16/20/25DN

Processor

80386SX

Processor Speed

16/20/25MHz

Chip Set

Diamond Flower

Max. Onboard DRAM

16MB

Cache

None

BIOS

AMI

Dimensions

241mm x 220mm

I/O Options

None

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Keyboard connector

J1

Speaker

J5

Reset switch

J2

Power LED & keylock

J6

Turbo switch

J3

External battery

J9

Turbo LED

J4

 

 

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Monitor type select color

J7

closed

 

Monitor type select monochrome

J7

open

»

CMOS memory normal operation (Internal Battery)

J8

pins 1 & 2 closed

 

CMOS memory normal operation (External Battery)

J8

pins 2 & 3 closed

 

CMOS memory clear

J8

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

512KB

(2) 256K x 9

NONE

NONE

NONE

1MB

(2) 256K x 9

(2) 256K x 9

NONE

NONE

2MB

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

2MB

(2) 1M x 9

NONE

NONE

NONE

2.5MB

(2) 256K x 9

(2) 1M x 9

NONE

NONE

3MB

(2) 256K x 9

(2) 256K x 9

(2) 1M x 9

NONE

4MB

(2) 1M x 9

(2) 1M x 9

NONE

NONE

4.5MB

(2) 1M x 9

(2) 1M x 9

(2) 256K x 9

NONE

5MB

(2) 256K x 9

(2) 256K x 9

(2) 1M x 9

(2) 1M x 9

6MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

NONE

8MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

8MB

(2) 4M x 9

NONE

NONE

NONE

10MB

(2) 1M x 9

(2) 4M x 9

NONE

NONE

16MB

(2) 4M x 9

(2) 4M x 9

NONE

NONE

REFRESH TYPE CONFIGURATION

Type

J9

J10

»

Burst refresh (90 µs)

Closed

Open

 

Fast refresh (30 µs)

Open

Closed

 

Standard refresh (15 µs)

Open

Open

 

Fast burst refresh (180 µs)

Closed

Closed