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Processor

CX M1/AM K5/Pentium

Processor Speed

75/90/100/120/133/150/166/180/200MHz

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

128MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

AMI

Dimensions

220mm x 220mm

I/O Options

32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, PS/2 mouse interface, serial ports (2), IR connector, USB connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 2

CN1

Turbo LED

J13 pins 10 & 11

Serial port 1

CN2

Reset switch

J13 pins 12 & 13

Parallel port

CN3

Green PC connector

J13 pins 17 & 18

Floppy drive interface

CN4

IDE interface LED

J13 pins 20 & 21

IDE interface 2

CN5

Ground connector

J13 pins 25 & 26

IDE interface 1

CN6

IR connector

J14

PS/2 mouse port

J2

Chassis fan power

JP13

PS/2 mouse interface

J5

32-bit PCI slots

PC1 - PC3

Speaker

J13 pins 1 - 4

USB connector

USB

Power LED & keylock

J13 pins 5 - 9

USER CONFIGURABLE SETTINGS

Function

Label

Position

Flash BIOS voltage select 12v

JP3

Pins 2 & 3 closed

Flash BIOS voltage select 5v

JP3

Pins 1 & 2 closed

�

CMOS memory normal operation

JP4

Open

CMOS memory clear

JP4

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

8MB

None

(2) 1M x 36

16MB

(2) 2M x 36

None

16MB

None

(2) 2M x 36

16MB

(2) 1M x 36

(2) 1M x 36

24MB

(2) 1M x 36

(2) 2M x 36

32MB

(2) 4M x 36

None

32MB

None

(2) 4M x 36

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 1M x 36

(2) 4M x 36

48MB

(2) 2M x 36

(2) 4M x 36

64MB

(2) 8M x 36

None

64MB

None

(2) 8M x 36

64MB

(2) 4M x 36

(2) 4M x 36

72MB

(2) 1M x 36

(2) 8M x 36

80MB

(2) 2M x 36

(2) 8M x 36

96MB

(2) 4M x 36

(2) 8M x 36

128MB

(2) 8M x 36

(2) 8M x 36

Note: Board accepts EDO memory.

CACHE CONFIGURATION

Size

Bank 0

TAG

256KB

(2) 32K x 32

(1) 8K/32K x 8

512KB

(2) 64K x 32

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP7

256KB

Open

512KB

Closed

CPU SPEED SELECTION (CYRIX)

CPU speed

Clock speed

Multiplier

JP5

JP8

JP9

120MHz

50MHz

2x

1 & 2, 3 & 4

Open

Open

133MHz

55MHz

2x

Open

Open

Open

150MHz

60MHz

2x

1 & 2

Open

Open

166MHz

66MHz

2x

3 & 4

Open

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AMD)

CPU speed

Clock speed

Multiplier

JP5

JP8

JP9

75MHz

50MHz

1.5x

1 & 2, 3 & 4

Open

Open

90MHz

60MHz

1.5x

1 & 2

Open

Open

100MHz

66MHz

1.5x

3 & 4

Open

Open

120MHz

60MHz

1.5x

1 & 2

Open

Open

133MHz

66MHz

1.5x

3 & 4

Open

Open

150MHz

60MHz

2x

1 & 2

Open

Closed

166MHz

66MHz

2x

3 & 4

Open

Closed

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP5

JP8

JP9

75MHz

50MHz

1.5x

1 & 2, 3 & 4

Open

Open

90MHz

60MHz

1.5x

1 & 2

Open

Open

100MHz

66MHz

1.5x

3 & 4

Open

Open

120MHz

60MHz

2x

1 & 2

Open

Closed

133MHz

66MHz

2x

3 & 4

Open

Closed

150MHz

60MHz

2.5x

1 & 2

Closed

Closed

166MHz

66MHz

2.5x

3 & 4

Closed

Closed

180MHz

60MHz

3x

1 & 2

Closed

Open

200MHz

66MHz

3x

3 & 4

Closed

Open

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION

Type

Voltage

V i/O

V core

JP6

JP11

CX M1

Single

3.45v

3.5v

1 & 2

1 & 2, 3 & 4

AM K5 PRxxxAB/AC/AF

Single

3.45v

3.5v

1 & 2

1 & 2, 3 & 4

P54C/CQS/CT

Single

3.45v

3.5v

1 & 2

1 & 2, 3 & 4

AM K5 PRxxxAH/AJ/AK

Dual

3.45v/3.5v

2.6v/2.9v

2 & 3

Open

P55C/CT

Dual

3.45v/3.5v

2.6v/2.9v

2 & 3

Open

Note: Pins designated should be in the closed position.

I/O VOLTAGE SELECTION (DUAL VOLTAGE CPU)

Voltage

JP12

3.45v

Closed

3.5v

Open

CORE VOLTAGE SELECTION (DUAL VOLTAGE CPU)

Voltage

JP14

2.6v

Closed

2.9v

Open