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AST Bravo/386SX

From Higher Intellect Vintage Wiki

The AST Bravo/386SX is a PC compatible desktop based on the 80386 processor.

Gallery[edit]

Jumper Settings[edit]

Processor

80386SX

Processor Speed

16MHz

Chip Set

AST

Max. Onboard DRAM

4MB

SRAM Cache

None

BIOS

AST

Dimensions

286mm x 190mm

I/O Options

Floppy drive interface, IDE interface, parallel port, serial port

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Parallel port

CN1

External battery

J11

Serial port 1 (COM1)

CN2

IDE interface LED

J12

IDE interface

J8

Riser card

S1

Floppy drive interface

J9

Reset switch

SW1

Power LED

J10

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

POST loop disabled (factory test)

E1

open

 

POST loop enabled

E1

closed

»

Keyboard select installed

E2

open

 

Keyboard select not instaled

E2

closed

»

Factory configured - do not alter

E3

pins 2 & 3 closed

»

Factory configured - do not alter

E4

pins 2 & 3 closed

»

Factory configured - do not alter

E5

closed

»

Monitor type select color

E6

pins 1 & 2 closed

 

Monitor type select monochrome

E6

pins 2 & 3 closed

»

Factory configured - do not alter

E7

closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

512KB

(2) 256K x 9

NONE

1MB

(2) 256K x 9

(2) 256K x 9

2MB

(2) 1M x 9

NONE

4MB

(2) 1M x 9

(2) 1M x 9

See Also[edit]