AST RESEARCH, INC.

BRAVO MS, MS-T, MS-L PENTIUM (RATTLER) (202653-XXX)

Processor

Pentium

Processor Speed

60/66/90/100MHz

Chip Set

AST

Max. Onboard DRAM

128MB

Cache

512KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

VGA port

CN1

Floppy drive interface

J24

Parallel port

CN2

Speaker

J27

Serial port 2

CN3

Chassis fan power

J28

Serial port 1

CN4

Front panel connector

J29

PS/2 mouse port

CN5

Power LED & keylock

J32

VGA feature connector

J19

IDE interface LED

J40

IDE interface 2

J22

Video memory upgrade slot

SL1

IDE interface 1

J23

Riser Card

SL2

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Factory configured - do not alter

E4

Open

»

Factory configured - do not alter

E5

Open

»

Factory configured - do not alter

E6

Open

»

Factory configured - do not alter

E8

Open

»

Monitor type select color

E9

Closed

 

Monitor type select monochrome

E9

Open

»

System setup enabled

E10

Closed

 

System setup disabled

E10

Open

»

On board video enabled

E11

Closed

 

On board video disabled

E11

Open

»

Password enabled

E12

Closed

 

Password disabled

E12

Open

»

Flash BIOS write protect enabled

E13

Closed

 

Flash BIOS write protect disabled

E13

Open

»

CMOS memory normal operation

J26

Closed

 

CMOS memory clear

J26

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(1) 1M x 36

NONE

NONE

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

(1) 2M x 36

NONE

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

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

NONE

NONE

NONE

17MB

(1) 4M x 36

(1) 1M x 36

NONE

NONE

18MB

(1) 2M x 36

(1) 2M x 36

(1) 256K x 36

(1) 256K x 36

20MB

(1) 2M x 36

(1) 2M x 36

(1) 1M x 36

NONE

24MB

(1) 2M x 36

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

24MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

NONE

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

32MB

(1) 8M x 36

NONE

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

40MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

40MB

(1) 4M x 36

(1) 4M x 36

(1) 2M x 36

NONE

48MB

(1) 4M x 36

(1) 4M x 36

(1) 2M x 36

(1) 2M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

(1) 8M x 36

NONE

NONE

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

66MB

(1) 8M x 36

(1) 8M x 36

(1) 256K x 36

(1) 256K x 36

68MB

(1) 8M x 36

(1) 8M x 36

(1) 1M x 36

NONE

72MB

(1) 8M x 36

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

72MB

(1) 8M x 36

(1) 8M x 36

(1) 2M x 36

NONE

80MB

(1) 8M x 36

(1) 8M x 36

(1) 2M x 36

(1) 2M x 36

80MB

(1) 8M x 36

(1) 8M x 36

(1) 4M x 36

NONE

96MB

(1) 8M x 36

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

96MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

NONE

128MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

CACHE CONFIGURATION

Size

Bank 0

512KB

(8) 64K x 8

Note: Cache is factory installed and is not configurable.

CPU SPEED CONFIGURATION

Speed

E1

E2

E3

E7

60MHz

pins 1 & 2 closed

Open

Closed

Open

66MHz

pins 1 & 2 closed

Closed

Closed

Open

90MHz

pins 2 & 3 closed

Open

Closed

Open

100MHz

pins 2 & 3 closed

Open

Closed

Closed

Note: Use these settings with IMI415 installed at U7.

CPU SPEED CONFIGURATION

Speed

E1

E2

E3

E7

60MHz

pins 1 & 2 closed

Open

Closed

Closed

66MHz

pins 1 & 2 closed

Closed

Closed

Closed

90MHz

pins 2 & 3 closed

Open

Closed

Closed

100MHz

pins 2 & 3 closed

Open

Closed

Open

Note: Use these settings with IMI470 installed at U7.