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Bravo/286 (202286-002, 202354-001) Motherboard Settings and Configuration






AST RESEARCH, INC.

Bravo/286 (202286-002, 202354-001)

Processor

80286

Processor Speed

8MHz

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

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Parallel port

CN1

Power LED

J10

Serial port 1 (COM1)

CN2

IDE interface LED

J11

IDE interface

J8

Riser card

S1

Floppy drive interface

J9

Reset switch

SW1

Note:Connector J11 is only present on part number 202354-001.

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

E1

open

Factory configured - do not alter

E2

open

Monitor type select color

SW2

pins 1 & 2 closed

 

Monitor type select monochrome

SW2

pins 2 & 3 closed

Factory configured - do not alter

SW3

pins 1 & 2 closed

Note:On some board revisions SW2 is a two position switch with the settings

marked "Color" and "Mono". SW2 is shown here as a three pin jumper with unverified settings.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

512KB

(2) 256K x 9

NONE

640KB

(2) 256K x 9

(2) 64K x 9

1MB

(2) 256K x 9

(2) 256K x 9

2MB

(2) 1M x 9

NONE

4MB

(2) 1M x 9

(2) 1M x 9










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