INSTALLATION .III

Jumpers

III.INSTALLATION

5.CPU Bus Frequency Selector (FS0, FS1, FS2, FS3, FS4)

This option tells the clock generator what frequency to send to the CPU, DRAM, and 440BX AGPset. This allows the selection of the CPU’s External frequency (or BUS Clock). The BUS Clock multiplied by the BUS Ratio equals the CPU’s Internal fre- quency (the advertised CPU speed).

6.CPU Core:BUS Frequency Multiple (BF0, BF1, BF2, BF3)

This option sets the frequency multiple between the Internal frequency of the CPU and the CPU’s External frequency. These must be set in conjunction with the CPU Bus Frequency.

FS4FS3FS2FS1FS0 FS4FS3FS2FS1FS0 FS4FS3FS2FS1FS0 FS4FS3FS2FS1FS0 FS4FS3FS2FS1FS0

1

1

1

1

1

2

2

2

2

2

3

3

3

3

3

CPU 66.8MHz CPU 75.0MHz CPU 83.0MHz CPU100.3MHz CPU 103MHz

PCI 33.4MHz PCI 37.5MHz PCI 41.6MHz PCI 33.4MHz PCI 34.3MHz

FS4FS3FS2FS1FS0 FS4FS3FS2FS1FS0 FS4FS3FS2FS1FS0 FS4FS3FS2FS1FS0 FS4FS3FS2FS1FS0

1

1

1

1

1

2

2

2

2

2

3

3

3

3

3

CPU 105.0MHz CPU110.0MHz CPU 112.0MHz CPU115.0MHz CPU 120.0MHz

PCI 35.0MHz PCI 36.7MHz PCI 37.3MHz PCI 38.3MHz PCI 40.0MHz

FS4FS3FS2FS1FS0 FS4FS3FS2FS1FS0 FS4FS3FS2FS1FS0 FS4FS3FS2FS1FS0

1

1

1

1

2

2

2

2

3

3

3

3

CPU 124.0MHz CPU124.0MHz CPU 133.0MHz CPU133.0MHz

PCI 41.3MHz PCI 31.0MHz PCI 44.3MHz PCI 33.3MHz

 

CPU Bus Frequency

 

 

 

BF3 BF2 BF1 BF0

BF3 BF2 BF1 BF0

BF3 BF2 BF1 BF0

BF3 BF2 BF1 BF0

 

1

1

1

1

 

2

2

2

2

 

3

3

3

3

P2B-VM CPU Settings

2.0x(2/1)

2.5x(5/2)

3.0x(3/1)

3.5x(7/2)

BF3 BF2 BF1 BF0

BF3 BF2 BF1 BF0

BF3 BF2 BF1 BF0

 

 

1

1

1

 

 

2

2

2

 

 

3

3

3

 

 

4.0x(4/1)

4.5x(9/2)

5.0x(5/1)

 

CPU Core:Bus Frequency Multiple

WARNING! Frequencies above 100MHz exceed the specifications for the onboard Intel Chipset and are not guaranteed to be stable.

WARNING! PCI frequencies above 33MHz exceed the specifications for PCI cards and are not guaranteed to be stable.

Set the jumpers by the Internal speed of your processor as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(CPU BUS Freq.)

 

(Freq. Multiple)

 

 

 

 

 

 

 

Intel CPU Model

Freq.

Ratio

 

BUS F.

FS4 FS3 FS2 FS1 FS0

BF3 BF2

BF1 BF0

Pentium II

450MHz

4.5x

100MHz

[1-2] [2-3]

[1-2] [1-2] [1-2]

[2-3] [1-2] [2-3] [1-2]

Pentium II

400MHz

4.0x

100MHz

[1-2] [2-3]

[1-2] [1-2] [1-2]

[2-3] [1-2] [2-3] [2-3]

Pentium II

350MHz

3.5x

100MHz

[1-2]

[2-3]

[1-2]

[1-2] [1-2]

[2-3]

[2-3] [1-2]

[1-2]

Pentium II/Celeron

333MHz

5.0x

66MHz

[2-3]

[2-3]

[2-3]

[1-2]

[1-2]

[2-3]

[1-2]

[1-2]

[2-3]

Pentium II/Celeron

300MHz

4.5x

66MHz

[2-3]

[2-3]

[2-3]

[1-2]

[1-2]

[2-3]

[1-2]

[2-3]

[1-2]

Pentium II/Celeron

266MHz

4.0x

66MHz

[2-3]

[2-3]

[2-3]

[1-2]

[1-2]

[2-3]

[1-2]

[2-3]

[2-3]

NOTES: Overclocking your processor is not recommended. It may result in a slower speed. Voltage Regulator Output Selection (VID) is not needed for the Pentium II/Celeron processor because it sends a VID signal directly to the onboard power controller.

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ASUS P2B-VM User’s Manual