...because we can't all be on the bleeding edge...





ZX-25/HS, ZX-20/HS, ZX-16/HS

ADVANCED COMPUTER TECHNOLOGY, LTD.

ZX-25/HS, ZX-20/HS, ZX-16/HS

Processor

80386SX

Processor Speed

16/20/25MHz

Chip Set

ACT

Max. Onboard DRAM

8MB

Cache

None

BIOS

AMI

Dimensions

218mm x 218mm

I/O Options

None

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

JP2

External battery

JP11

Power LED & Keylock

JP5

Speaker

JP14

Reset switch

JP10

Turbo switch

JP17

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

JP3

N/A

Monitor type select color

JP6

pins 2 & 3 closed

 

Monitor type select monochrome

JP6

pins 1 & 2 closed

Factory configured - do not alter

JP7

N/A

Factory configured - do not alter

JP8

N/A

Factory configured - do not alter

JP9

N/A

Battery select internal

JP12

pins 2 & 3 closed

 

Battery select external

JP12

pins 1 & 2 closed

Power good signal detect from power supply

JP13

pins 1 & 2 closed

 

Power good signal detect from board

JP13

pins 2 & 3 closed

CPU speed select 20MHz or 25MHz

JP15

pins 1 & 2 closed

 

CPU speed select 16MHz

JP15

pins 2 & 3 closed

I/O bus speed select 8MHz

JP16

pins 1 & 2 closed

 

I/O bus speed select 6MHz

JP16

pins 2 & 3 closed

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

1.5MB

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

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

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

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