HwMuseum | Index

AST RESEARCH, INC.

BRAVO 486/25

Processor

80486DX

Processor Speed

25MHz

Chip Set

AST

Max. Onboard DRAM

16MB

Cache

None

BIOS

AST

Dimensions

355mm x 251mm

I/O Options

Bus mouse port, floppy interface, IDE interface, parallel port, serial ports (2), VGA port

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Bus mouse port

J12

IDE interface

J22

Parallel port

J13

Floppy drive interface

J24

Primary serial port

J14

External battery

J26

VGA port

J18

Speaker

J27

VGA pass-through

J19

Front panel switch/display

J29

Secondary serial port header

J20

External HD card access LED

J40

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Parity check enabled

E1

Closed

 

Parity check disabled

E1

Open

»

VGA interface enabled

SW1/1

On

 

VGA interface disabled

SW1/1

Off

»

Password check normal operation

SW1/2

Off

 

Password clear

SW1/2

On

»

Factory configured - do not alter

SW1/3

Off

»

Factory configured - do not alter

SW1/4

Off

»

Factory configured - do not alter

SW1/5

On

»

Factory configured - do not alter

SW1/6

On

»

PS/2 mode enabled (AT mode disabled)

SW1/7

On

 

PS/2 mode disabled (AT mode enabled)

SW1/7

Off

»

Monitor type select fixed frequency

SW1/8

Off

 

Monitor type select multi frequency

SW1/8

On

DRAM CONFIGURATION

Size

Bank 0

Bank 1

2MB

(2) 1M x 9

NONE

4MB

(2) 1M x 9

(2) 1M x 9

8MB

(4) 4M x 9

NONE

10MB

(2) 1M x 9

(4) 4M x 9

10MB

(4) 4M x 9

(2) 1M x 9

16MB

(4) 4M x 9

(4) 4M x 9