III. INSTALLATION

Jumper Settings

1.CPU Bus Frequency (FS0, FS1, FS2)

This option tells the clock generator what frequency to send to the CPU. 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 frequency (the advertised CPU speed).

2.CPU Core:BUS Frequency Multiple (CF1, CF2, CF3, CF4)

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

FS2

FS1

FS0

FS2

FS1 FS0

FS2

FS1

FS0

FS2 FS1 FS0

FS2

FS1 FS0

FS2

FS1

FS0

FS2 FS1 FS0

FS2 FS1 FS0

 

 

1

 

1

 

 

1

 

1

 

1

 

1

 

1

 

 

2

 

2

 

 

2

 

2

 

2

 

2

 

2

 

 

3

 

3

 

 

3

 

3

 

3

 

3

 

3

50MHz

55MHz

60MHz

66MHz

68MHz

75MHz

83MHz

100MHz

CPU Bus Frequency

 

 

 

 

 

 

 

 

CF1

CF2

CF3

CF4

CF1

CF2

CF3

CF4

CF1 CF2

CF3

CF4

CF1

CF2

CF3 CF4

CF1

CF2 CF3 CF4

3.5x(7/2)

4.0x(4/1)

4.5x(9/2)

5.0x(5/1)

5.5x(11/2)

CPU Core:Bus Frequency Multiple

WARNING! Frequencies above 66Mhz exceed the specifications for the onboard Intel Chipset and are not guaranteed to be stable.

Intel Pentium II Processor in a SEC Cartridge (233-400MHz 512KB/128KB/0KB L2 Cache)

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

CPU Model

Freq.

 

 

 

 

 

(BUS Freq.)

 

(Freq.

 

Ratio)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ratio

BUS F.

FS0

FS1

FS2

CF1

CF2 CF3

CF4

Intel Pentium II

300MHz

4.5x

66MHz

[1-2]

[1-2]

[1-2]

[OFF]

[ON] [OFF] [ON]

Intel Pentium II

266MHz

4.0x

66MHz

[1-2]

[1-2]

[1-2]

[ON]

[ON] [OFF] [ON]

Intel Pentium II

233MHz

3.5x

66MHz

[1-2]

[1-2]

[1-2]

[OFF] [OFF] [ON]

[ON]

INSTALLATION

Jumpers

III.

 

 

 

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 processor because it sends a VID signal directly to the onboard power controller.

ASUS P2L97-DS User’s Manual

15