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P/I-P55TP4N (REV. 2.0)

ASUS COMPUTER INTERNATIONAL

P/I-P55TP4N (REV. 2.0)

Device Type

Mainboard

Processor

Pentium

Processor Speed

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

Chip Set

Intel 430FX

Maximum Onboard Memory

128MB (EDO supported)

Cache

256/512KB

BIOS

Unidentified

Video Chip Set

None

I/O Options

32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interface (2), parallel port, PS/2 mouse interface, serial ports (2), IR connector, MediaBus slot, cache slot

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

CN1

Reset switch

CN9/pins 9 & 10

Serial port 2

CN2

Power LED & keylock

CN9/pins 11-15

Parallel port

CN3

Speaker

CN9/pins 17-20

IDE interface 1

CN4

IR connector

JP31

IDE interface 2

CN5

IDE interface LED

JP17

Floppy drive interface

CN6

32-bit PCI slots

PC1 - PC4

PS/2 mouse interface

CN7

Cache slot

SL1

Turbo LED

CN9/pins 2 & 3

MediaBus Slot

SL2

Green PC connector

CN9/pins 4 & 5

 

 

USER CONFIGURABLE SETTINGS

Function

Label

Position

On board I/O enabled

JP4

Pins 1 & 2 closed

 

On board I/O disabled

JP4

Pins 2 & 3 closed

 

Flash BIOS write protect enabled

JP5

Pins 2 & 3 closed

Flash BIOS write protect disabled

JP5

Pins 1 & 2 closed

PS/2 mouse disabled

JP7

Pins 2 & 3 closed

 

PS/2 mouse enabled

JP7

Pins 1 & 2 closed

CMOS memory normal operation

JP13

Open

 

CMOS memory clear

JP13

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2)1MB x 32

None

16MB

(2)1MB x 32

(2)1MB x 32

16MB

(2)2MB x 32

None

24MB

(2)2MB x 32

(2)1MB x 32

32MB

(2)2MB x 32

(2)2MB x 32

32MB

(2)4MB x 32

None

40MB

(2)4MB x 32

(2)1MB x 32

48MB

(2)4MB x 32

(2)2MB x 32

64MB

(2)4MB x 32

(2)4MB x 32

64MB

(2)8MB x 32

None

72MB

(2)8MB x 32

(2)1MB x 32

80MB

(2)8MB x 32

(2)2MB x 32

96MB

(2)8MB x 32

(2)4MB x 32

128MB

(2)8MB x 32

(2)8MBx 32

CACHE CONFIGURATION

Size

Bank 0

SL1

256KB (A)

(2) 32K x 32

Not installed

256KB (B)

None

256KB module installed

512KB (A)

(2) 32K x 32

256KB module installed

512KB (B)

(2) 64K x 32

Not installed

512KB (C)

None

512KB module installed

CACHE JUMPER CONFIGURATION

Size

JP16

256KB

Pins 2 & 3 closed

 

512KB

Pins 1 & 2 closed

CPU SPEED SELECTION (INTEL)

Speed

Clock speed

Multiplier

JP14

JP15

JP26

JP27

JP28

75MHz

50MHz

1.5x

Open

Open

1 & 2

2 & 3

2 & 3

90MHz

60MHz

1.5x

Open

Open

2 & 3

2 & 3

1 & 2

100MHz

66MHz

1.5x

Open

Open

2 & 3

1 & 2

2 & 3

120MHz

60MHz

2x

Open

Closed

2 & 3

2 & 3

1 & 2

133MHz

66MHz

2x

Open

Closed

2 & 3

1 & 2

2 & 3

150MHz

60MHz

2.5x

Closed

Closed

2 & 3

2 & 3

1 & 2

166MHz

66MHz

2.5x

Closed

Closed

2 & 3

1 & 2

2 & 3

Note : Numbers designate pins that should be closed.

CPU VOLTAGE SELECTION

Voltage

JP22

JP23

JP24

3.3V - 3.465V

Closed

Open

Open

 

3.4V - 3.6V

Open

Closed

Open