...because we can't all be on the bleeding edge...





ADVANTAGE! PRO 4/25S

AST RESEARCH, INC.

ADVANTAGE! PRO 4/25S

Processor

80486SX/ODP486/80487SX/ODPR486/80486DX/80486DX2/P24T

Processor Speed

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

Chip Set

Unidentified

Video Chip Set

Cirrus Logic

Maximum Onboard Memory

64MB

Maximum Video Memory

1MB

Cache

64/256KB

BIOS

Unidentified

Dimensions

355mm x 304mm

I/O Options

Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), 8514 video pass through connector, VGA port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

CN1

8514 video pass through connector

J19

Serial port

CN2

IDE interface

J22

Serial port

CN3

Floppy drive interface

J24

Parallel port

CN4

Chassis fan power

J28

VGA port

CN5

Front panel LEDs

J29

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Monitor type select color

E4

Closed

 

Monitor type select monochrome

E4

Open

»

On board video enabled

E5

Closed

 

On board video disabled

E5

Open

»

Password normal operation

E6

Closed

 

Password clear

E6

Open

»

Parallel port IRQ select IRQ7

E12

Pins 1 & 2 closed

 

Parallel port IRQ select IRQ5

E12

Pins 2 & 3 closed

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

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

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

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

CACHE CONFIGURATION

Size

Bank 0

TAG

64KB

(8) 8K x 8

(1) 8K x 8

256KB

(8) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

E1

E2

E3

None

Open

Open

Open

64KB

Open

Open

Open

256KB

Closed

Closed

Closed

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

512KB

(4) 256K x 4

None

1MB

(4) 256K x 4

(4) 256K x 4

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

CPU SPEED SELECTION

Speed

E9

E10

25MHz

Closed

Closed

33MHz

Open

Closed

50iMHz

Closed

Closed

66iMHz

Open

Closed

CPU TYPE SELECTION

Type

E11

E13

E14

E15

E16

E17

80486SX (PQFP)

Open

Open

1 & 2

1 & 2

1 & 2

1 & 2

80486SX (PGA)

Closed

Open

1 & 2

1 & 2

1 & 2

1 & 2

ODP486

Closed

Closed

1 & 2

1 & 2

2 & 3

1 & 2

80487SX

Closed

Closed

1 & 2

1 & 2

2 & 3

1 & 2

ODPR486

Closed

Closed

2 & 3

1 & 2

2 & 3

1 & 2

80486DX

Closed

Closed

2 & 3

1 & 2

2 & 3

1 & 2

80486DX2

Closed

Closed

2 & 3

1 & 2

2 & 3

1 & 2

P24T

Closed

Closed

2 & 3

2 & 3

2 & 3

Open

Note: Pins designated should be in the closed position. The location of the PQFP socket is unidentified.