ASUS COMPUTER INTERNATIONAL

P2B-B (REV. 1.02)

Device Type

Mainboard

Processor

Pentium II/Celeron

Processor Speed

233/266/300/333/350/366/400/450MHz

Chip Set

Intel 440BX

Maximum Onboard Memory

768MB (SDRAM & PC100 supported)

Cache

0/128/256/512KB (located on the CPU)

BIOS

Unidentified

Dimensions

305mm x 244mm

I/O Options

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

CONNECTIONS

Purpose

Location

Purpose

Location

AGP slot

AGP

SB-link connector

C8

ATX power connector

ATX

Wake on LAN connector

C9

Turbo LED

C1/pins 2 & 3

Power fan power

C10

Green PC connector

C1/pins 4 & 5

Serial port 1

CN1

Soft off power supply

C1/pins 6 & 7

Serial port 2

CN2

Reset switch

C1/pins 9 & 10

Parallel port

CN3

Power LED & keylock

C1/pins 11 - 15

Floppy drive interface

CN4

Speaker

C1/pins 17 - 20

IDE interface 2

CN5

IR connector

C2

IDE interface 1

CN6

IDE interface LED

C3

USB, IR, mouse connector

CN7

Chassis fan power

C4

Power supply thermal sensor

RT2

SMB connector

C5

Power supply thermal sensor

RT3

CPU fan power

C6

32-bit PCI slots

PC1 - PC3

Chassis intrusion connector

C7

 

 


USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Keyboard power up disabled

KBP

Pins 1 & 2 closed

 

Keyboard power up enabled

KBP

Pins 2 & 3 closed

»

CMOS memory normal operation

RTC

Open

 

CMOS memory clear

RTC

Closed

»

Voltage select 3.5v

VIO

Pins 2 & 3 closed

 

Voltage select 3.66v

VIO

Pins 1 & 2 closed


DIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

8MB

(1) 1M x 64

None

None

16MB

(1) 2M x 64

None

None

16MB

(1) 1M x 64

(1) 1M x 64

None

24MB

(1) 2M x 64

(1) 1M x 64

None

24MB

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

32MB

(1) 4M x 64

None

None

32MB

(1) 2M x 64

(1) 1M x 64

(1) 1M x 64

32MB

(1) 2M x 64

(1) 2M x 64

None

40MB

(1) 4M x 64

(1) 1M x 64

None

40MB

(1) 2M x 64

(1) 2M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 1M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 2M x 64

None

48MB

(1) 2M x 64

(1) 2M x 64

(1) 2M x 64

56MB

(1) 4M x 64

(1) 2M x 64

(1) 1M x 64

64MB

(1) 8M x 64

None

None

64MB

(1) 4M x 64

(1) 2M x 64

(1) 2M x 64


DIMM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

Bank 2

64MB

(1) 4M x 64

(1) 4M x 64

None

72MB

(1) 8M x 64

(1) 1M x 64

None

72MB

(1) 4M x 64

(1) 4M x 64

(1) 1M x 64

80MB

(1) 8M x 64

(1) 1M x 64

(1) 1M x 64

80MB

(1) 8M x 64

(1) 2M x 64

None

80MB

(1) 4M x 64

(1) 4M x 64

(1) 2M x 64

88MB

(1) 8M x 64

(1) 2M x 64

(1) 1M x 64

96MB

(1) 8M x 64

(1) 2M x 64

(1) 2M x 64

96MB

(1) 8M x 64

(1) 4M x 64

None

96MB

(1) 4M x 64

(1) 4M x 64

(1) 4M x 64

104MB

(1) 8M x 64

(1) 4M x 64

(1) 1M x 64

112MB

(1) 8M x 64

(1) 4M x 64

(1) 2M x 64

128MB

(1) 16M x 64

None

None

128MB

(1) 8M x 64

(1) 4M x 64

(1) 4M x 64

128MB

(1) 8M x 64

(1) 8M x 64

None

136MB

(1) 16M x 64

(1) 1M x 64

None

136MB

(1) 8M x 64

(1) 8M x 64

(1) 1M x 64

144MB

(1) 16M x 64

(1) 1M x 64

(1) 1M x 64

144MB

(1) 16M x 64

(1) 2M x 64

None

144MB

(1) 8M x 64

(1) 8M x 64

(1) 2M x 64

168MB

(1) 16M x 64

(1) 4M x 64

(1) 1M x 64

192MB

(1) 16M x 64

(1) 4M x 64

(1) 4M x 64

192MB

(1) 16M x 64

(1) 8M x 64

None

224MB

(1) 16M x 64

(1) 8M x 64

(1) 4M x 64

256MB

(1) 32M x 64

None

None

256MB

(1) 16M x 64

(1) 8M x 64

(1) 8M x 64

264MB

(1) 32M x 64

(1) 1M x 64

None

272MB

(1) 32M x 64

(1) 1M x 64

(1) 1M x 64

272MB

(1) 32M x 64

(1) 2M x 64

None

288MB

(1) 32M x 64

(1) 2M x 64

(1) 2M x 64

320MB

(1) 32M x 64

(1) 8M x 64

None

384MB

(1) 32M x 64

(1) 8M x 64

(1) 8M x 64

384MB

(1) 32M x 64

(1) 16M x 64

None

384MB

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64

512MB

(1) 32M x 64

(1) 16M x 64

(1) 16M x 64

512MB

(1) 32M x 64

(1) 32M x 64

None

768MB

(1) 32M x 64

(1) 32M x 64

(1) 32M x 64

Note: Board accepts SDRAM & PC100 memory.


CACHE CONFIGURATION

Note: 256KB/512KB cache is located on the Pentium II CPU. 128KB cache is located on the Celeron 300A & 333 CPU.


CPU SPEED SELECTION (PENTIUM II)

CPU speed

Clock speed

Multiplier

BF0

BF1

BF2

BF3

350MHz

100MHz

3.5x

1 & 2

1 & 2

2 & 3

2 & 3

400MHz

100MHz

4x

2 & 3

2 & 3

1 & 2

2 & 3

450MHz

100MHz

4.5x

1 & 2

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position.


CPU SPEED SELECTION (PENTIUM II, CON'T)

CPU speed

Clock speed

Multiplier

FS0

FS1

FS2

FS3

350MHz

100MHz

3.5x

1 & 2

1 & 2

1 & 2

2 & 3

400MHz

100MHz

4x

1 & 2

1 & 2

1 & 2

2 & 3

450MHz

100MHz

4.5x

1 & 2

1 & 2

1 & 2

2 & 3

Note: Pins designated should be in the closed position.


CPU SPEED SELECTION (CELERON/PENTIUM II)

CPU speed

Clock speed

Multiplier

BF0

BF1

BF2

BF3

233MHz

66MHz

3.5x

1 & 2

1 & 2

2 & 3

2 & 3

266MHz

66MHz

4x

2 & 3

2 & 3

1 & 2

2 & 3

300MHz

66MHz

4.5x

1 & 2

2 & 3

1 & 2

2 & 3

333MHz

66MHz

5x

2 & 3

1 & 2

1 & 2

2 & 3

366MHz

66MHz

5.5x

1 & 2

1 & 2

1 & 2

2 & 3

Note: Pins designated should be in the closed position.


CPU SPEED SELECTION (CELERON/PENTIUM II, CON'T)

CPU speed

Clock speed

Multiplier

FS0

FS1

FS2

FS3

233MHz

66MHz

3.5x

1 & 2

1 & 2

2 & 3

2 & 3

266MHz

66MHz

4x

1 & 2

1 & 2

2 & 3

2 & 3

300MHz

66MHz

4.5x

1 & 2

1 & 2

2 & 3

2 & 3

333MHz

66MHz

5x

1 & 2

1 & 2

2 & 3

2 & 3

366MHz

66MHz

5.5x

1 & 2

1 & 2

2 & 3

2 & 3

Note: Pins designated should be in the closed position.