AST RESEARCH, INC.

BRAVO MT P/60 (230598-001)

Processor

Pentium

Processor Speed

60/66MHz

Chip Set

AST

Max. Onboard DRAM

128MB

Cache

256/512KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slots (2), PS/2 mouse port, floppy drive interface, IDE interface, parallel port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

J4

Speaker

J34

External battery

J5

IDE interface LED

J41

Parallel port

J6

Power LED connector

J42

IDE interface

J7

Reset switch

J43

Serial port 1

J8

Turbo switch (not used)

J45

Serial port 2

J9

Power LED & keylock (not used)

J48

Floppy drive interface

J10

32-bit VESA Local bus slots

SL1 & SL2

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Factory configured - do not alter

J13

Open

»

Factory configured - do not alter

J17

Open

»

Parallel port IRQ select IRQ7

J18

pins 1 & 2 closed

 

Parallel port IRQ select IRQ5

J18

pins 2 & 3 closed

»

Factory configured - do not alter

J26

Open

»

On board mouse enabled

J28

pins 1 & 2 closed

 

On board mouse disabled

J28

pins 2 & 3 closed

»

CMOS memory normal operation

J29

pins 1 & 2 closed

 

CMOS memory clear

J29

pins 2 & 3 closed

»

Flash BIOS update enabled

J51

Closed

 

Flash BIOS update disabled

J51

Open

»

Factory configured - do not alter

SW1/1

Off

»

Monitor type select color

SW1/2

On

 

Monitor type select monochrome

SW1/2

Off

SERIAL PORT CONFIGURATION

Port 1

Port 2

J19

J20

IRQ3

IRQ4

pins 2 & 3 closed

pins 2 & 3 closed

IRQ4

IRQ3

pins 1 & 2 closed

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

2MB

(2) 256K x 36

NONE

4MB

(2) 256K x 36

(2) 256K x 36

8MB

(2) 1M x 36

NONE

16MB

(2) 1M x 36

(2) 1M x 36

32MB

(2) 4M x 36

NONE

64MB

(2) 4M x 36

(2) 4M x 36

64MB

(2) 8M x 36

NONE

128MB

(2) 8M x 36

(2) 8M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

256KB

(8) 32K x 8

NONE

512KB

(8) 32K x 8

(8) 32K x 8

Note: This system board may only support 256KB cache.

CACHE JUMPER CONFIGURATION

Size

J30

J31

J52

J53

J54

256KB

Open

Closed

1 & 2

1 & 2

1 & 2

512KB

Closed

Closed

2 & 3

2 & 3

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION

Speed

J38

60MHz

pins 1 & 2, 5 & 6 closed

66MHz

pins 3 & 4 closed