AST RESEARCH, INC.

ADVANTAGE + (CHINA) 50179

Processor

CX M1/Pentium

Processor Speed

75/90/100/120/133/150/166/200MHz

Chip Set

Unidentified

Video Chip Set

SIS

Maximum Onboard Memory

128MB

Maximum Video Memory

2MB

Cache

256KB

BIOS

AST

Dimensions

254mm x 218mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Parallel port

CN1

Serial port 2

J10

Serial port 1

CN2

Chassis fan power

J17

PS/2 mouse port

CN3

Video feature connector

JP2

VGA port

CN4

Floppy drive interface

JP5

IDE interface LED

J1

IDE interface 2

JP6

Speaker

J2

IDE interface 1

JP7

Reset switch

J3

Riser slot

SL1

Power LED & keylock

J4

Cache slot

SL2

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

VGA IRQ disabled

JP1

Open

 

VGA IRQ enabled

JP1

Closed

»

Factory configured - do not alter

JP11

Unidentified

»

Password normal operation

JP14

Closed

 

Password clear

JP14

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

24MB

(2) 2M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 4M x 36

(2) 1M x 36

48MB

(2) 4M x 36

(2) 2M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

72MB

(2) 8M x 36

(2) 1M x 36

80MB

(2) 8M x 36

(2) 2M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

CACHE CONFIGURATION

Size

SL2

256KB

256KB module installed

CACHE JUMPER CONFIGURATION

Type

JP8

»

Asynchronous

Pins 1 & 2 closed

 

Synchronous, pipeline burst

Pins 2 & 3 closed

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

1MB

1MB

None

2MB

1MB

1MB

Note: The location of banks 0 & 1 are unidentified. The size of the chips are unidentified.

CPU SPEED SELECTION (CYRIX)

CPU speed

Clock speed

Multiplier

BF0

BF1

JP3

JP4

JP5

100MHz

50MHz

2x

2 & 3

Open

Closed

Open

Open

120MHz

60MHz

2x

2 & 3

Open

Closed

Closed

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

BF0

BF1

JP3

JP4

JP5

75MHz

50MHz

1.5x

1 & 2

Open

Open

Open

Open

100MHz

66MHz

1.5x

1 & 2

Open

Closed

Open

Closed

133MHz

66MHz

2x

2 & 3

Open

Closed

Open

Closed

150MHz

60MHz

2.5x

2 & 3

Closed

Closed

Closed

Open

166MHz

66MHz

2.5x

2 & 3

Closed

Closed

Open

Closed

200MHz

66MHz

3x

1 & 2

Closed

Closed

Open

Closed

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION

Type

JP9

VR (3.3v - 3.4v)

Closed

VRE (3.4v - 3.6v)

Open