AST RESEARCH, INC.

BRAVO MS P75 (202759-111, 202762-15X)

Processor

CX M1/Pentium

Processor Speed

60/75/80/90/100/120/133/150/166MHz

Chip Set

Unidentified

Maximum Onboard Memory

128MB

Cache

256KB

BIOS

AST

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), 8514 video pass through connector, VGA port, riser slot, speaker/line out connector, microphone connector, line in connector, CD-ROM audio connector

NPU Options

None

CONNECTIONS

Function

Label

Function

Label

Speaker/line out connector

CN1

IDE interface 1

J22

Microphone connector

CN2

IDE interface 2

J23

Line in connector

CN3

Floppy drive interface

J24

PS/2 mouse port

CN4

Speaker

J27

Serial port

CN5

Chassis fan power

J28

Serial port

CN6

Front panel LED’s

J29

Parallel port

CN7

Chassis fan power

J32

VGA port

CN8

IDE interface LED

J40

CD audio connector

J4

Riser slot

SL1

8514 video pass through connector

J19

   

USER CONFIGURABLE SETTINGS

Setting

Label

Position

»

Speaker type select on board

E1

Closed

 

Speaker type select external

E1

Open

»

Flash BIOS normal operation

E4

Closed

 

Flash BIOS force update at boot

E4

Open

»

Password enabled

E5

Closed

 

Password disabled

E5

Open

»

Setup access enabled

E7

Closed

 

Setup access disabled

E7

Open

»

Factory configured - do not alter

E12

Open

»

Factory configured - do not alter

E13

Closed

»

Factory configured - do not alter

E14

Open

»

Factory configured - do not alter

E17

Open

»

Factory configured - do not alter

E19

Open

»

Factory configured - do not alter

J6

Pins 2 & 4 closed

»

Factory configured - do not alter

J7

Pins 2 & 4 closed

DRAM

Size

Bank 0

Bank 1

8MB

(2) 1M x 32

None

10MB

(2) 1M x 32

(2) 256K x 32

16MB

(2) 2M x 32

None

16MB

(2) 1M x 32

(2) 1M x 32

24MB

(2) 2M x 32

(2) 1M x 32

32MB

(2) 4M x 32

None

32MB

(2) 2M x 32

(2) 2M x 32

34MB

(2) 4M x 32

(2) 256K x 32

40MB

(2) 4M x 32

(2) 1M x 32

48MB

(2) 4M x 32

(2) 2M x 32

64MB

(2) 8M x 32

None

64MB

(2) 4M x 32

(2) 4M x 32

DRAM (CON’T)

Size

Bank 0

Bank 1

66MB

(2) 8M x 32

(2) 256K x 32

72MB

(2) 8M x 32

(2) 1M x 32

80MB

(2) 8M x 32

(2) 2M x 32

96MB

(2) 8M x 32

(2) 4M x 32

128MB

(2) 8M x 32

(2) 8M x 32

CACHE SIZE

Note: 256KB cache is factory installed and is not configurable.

CPU SPEED

Internal

External

E3

E6

E8

E10

E11

E18

E20

60MHz

40MHz

2 & 3

Closed

Closed

Open

Closed

Open

Open

75MHz

50MHz

2 & 3

Closed

Closed

Open

Open

Open

Closed

80MHz

40MHz

1 & 2

Open

Closed

Open

Closed

Closed

Open

90MHz

60MHz

2 & 3

Closed

Closed

Closed

Open

Closed

Closed

100MHz (Intel)

66MHz

1 & 2

Open

Closed

Open

Open

Closed

Closed

100MHz (Cyrix)

50MHz

2 & 3

Closed

Closed

Closed

Closed

Closed

Closed

120MHz

60MHz

1 & 2

Open

Closed

Closed

Open

Closed

Closed

133MHz

66MHz

1 & 2

Open

Closed

Closed

Closed

Closed

Closed

150MHz

60MHz

1 & 2

Closed

Open

Closed

Open

Closed

Closed

166MHz

66MHz

1 & 2

Closed

Open

Closed

Closed

Closed

Closed

Note: Pins designated should be in the closed position.

CPU VOLTAGE

Setting

E2

3.3v - 3.4v

Closed

3.4v - 3.6v

Open

Note: E2 may not be present on all boards.

VIDEO MEMORY

Size

Bank 0

Bank 1

1MB

(4) 256K x 8

None

2MB

(4) 256K x 8

(4) 256K x 8

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

SPEAKER/LINE OUT

Setting

E15

E16

»

Output to speaker

Pins 1 & 2 closed

Pins 1 & 2 closed

 

Output to line

Pins 2 & 3 closed

Pins 2 & 3 closed