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BRAVO LP (202536-0XX)

AST RESEARCH, INC.

BRAVO LP (202536-0XX)

Processor

80486SX/80487SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive

Processor Speed

25/33/50(internal)/66(internal)MHz

Chip Set

AST

Max. Onboard DRAM

64MB

Cache

64KB (with external cache card)

BIOS

AST

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Front panel connector

J2

IDE interface

J22

PS/2 mouse port

J12

Floppy drive interface

J24

Parallel port

J13

Speaker

J27

Serial port 1

J14

Chassis fan power

J28

Personality module connectors

J15, J16, J46

IDE interface LED

J40

VGA port

J18

Cache module connectors

J50 - J53

VGA feature connector

J19

Riser Card

SL1

Serial port 2

J20

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

CMOS memory normal operation

E1

Open

 

CMOS memory clear

E1

Closed

»

Parallel port IRQ select IRQ7

E7

pins 1 & 2 closed

 

Parallel port IRQ select IRQ5

E7

pins 2 & 3 closed

»

Factory configured - do not alter

E9

Open

»

Factory configured - do not alter

E800

pins 1 & 2 closed

»

Factory configured - do not alter

E801

pins 2 & 3 closed

»

Power management enabled

E802

pins 1 & 2 closed

 

Power management disabled

E802

pins 2 & 3 closed

»

Factory configured - do not alter

E803

pins 1 & 2 closed

»

Factory configured - do not alter

E804

pins 1 & 2 closed

»

On board video enabled

SW1/1

Off

 

On board video disabled

SW1/1

On

»

POST type select normal

SW1/2

Off

 

POST type select loop

SW1/2

On

»

Boot type select normal

SW1/3

Off

 

Boot type select flash BIOS update

SW1/3

On

»

Password enabled

SW1/4

Off

 

Password disabled

SW1/4

On

»

Monitor type select color

SW1/5

On

 

Monitor type select monochrome

SW1/5

Off

»

Factory configured - do not alter

SW1/6

Off

»

Factory configured - do not alter

SW1/7

Off

»

System setup type select allow access

SW1/8

Off

 

System setup type select deny access

SW1/8

On

»

Factory configured - do not alter

SW1/9

Off

»

Factory configured - do not alter

SW1/10

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

NONE

NONE

NONE

2MB

(1) 256K x 36

(1) 256K x 36

NONE

NONE

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

4MB

(1) 1M x 36

NONE

NONE

NONE

5MB

(1) 1M x 36

(1) 256K x 36

NONE

NONE

6MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

NONE

7MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

9MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

NONE

10MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

13MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

DRAM CONFIGURATION (CON’T)

16MB

(1) 4M x 36

NONE

NONE

NONE

17MB

(1) 4M x 36

(1) 256K x 36

NONE

NONE

18MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

NONE

19MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

20MB

(1) 4M x 36

(1) 1M x 36

NONE

NONE

21MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

NONE

22MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

NONE

25MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

33MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

NONE

34MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

36MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

NONE

37MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

40MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

49MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

52MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

CPU UPGRADE CONFIGURATION

Type

E2

E3

E4

E5

E6

None

N/A

N/A

N/A

N/A

2 & 3

80486SX

Open

Open

2 & 3

2 & 3

1 & 2

80487SX

Closed

1 & 2

1 & 2

2 & 3

2 & 3

80486DX/DX2

Closed

2 & 3

1 & 2

2 & 3

1 & 2

Overdrive (ODPR)

Closed

2 & 3

1 & 2

2 & 3

1 & 2

Overdrive (ODP)

Closed

1 & 2

1 & 2

2 & 3

2 & 3

Overdrive (P24T)

Closed

1 & 2

1 & 2

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION

Speed

E8

25MHz

Open

33MHz

Closed

50iMHz

Open

66iMHz

Closed

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

512KB

(1) 256K x 16

NONE

NONE

1MB

(1) 256K x 16

(1) 256K x 16

NONE

2MB

(1) 256K x 16

(1) 256K x 16

(2) 256K x 16

Note: Bank 0 is factory installed and is not configurable.