INSTALLATION .III
Jumpers
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).
4.CPU Core:BUS Frequency Multiple (BF0, BF1, BF2, BF3)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.
BF0 BF1 BF2 | BF3 | BF0 BF1 | BF2 | BF3 | BF0 BF1 | BF2 BF3 | BF0 | BF1 BF2 BF3 | BF0 | BF1 BF2 | BF3 | BF0 BF1 | BF2 | BF3 | BF0 BF1 BF2 BF3 |
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2.0x (2/1) | 2.5x (5/2) | 3.0X (3/1) | 3.5X (7/2) | 4.0X (4/1) | 4.5X (9/2) | 5.0X (5/1) | |||||||||
BF0 BF1 BF2 | BF3 | BF0 BF1 | BF2 | BF3 | BF0 BF1 | BF2 BF3 | BF0 | BF1 BF2 BF3 | BF0 | BF1 BF2 | BF3 | BF0 BF1 | BF2 | BF3 |
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5.5x (11/2) | 6.0x (6/1) | 6.5X (13/2) | 7.0X (7/1) | 7.5X (15/2) | 8.0X (8/1) |
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CPU Core:BUS Frequency Multiple |
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FS0 FS1 FS2 | FS0 | FS1 FS2 | 1 | FS0 FS1 | FS2 | FS0 FS1 FS2 |
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P2B CPU | 1 |
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66.8MHz | 75MHz | 83.3MHz 100.2MHz | 103MHz | 112MHz | 133MHz |
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33.4MHz 37.5MHz 41.65MHz | 33.3MHz 33.4MHz | 37.3MHz | 33.3MHz/ |
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CPU External Clock (BUS) Frequency Selection |
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WARNING! Frequencies above 100MHz exceed the specifications for the onboard Intel Chipset and are not guaranteed to be stable.
Set the jumpers by the Internal speed of your processor as follows:
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| (BUS Freq.) |
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Intel CPU Model | Freq. | Ratio | BUS F. | FS0 | FS1 | FS2 | BF0 | BF1 | BF2 | BF3 | ||
Pentium II | 450MHz | 4.5x | 100MHz | |||||||||
Pentium II | 400MHz | 4.0x | 100MHz | |||||||||
Pentium II | 350MHz | 3.5x | 100MHz | |||||||||
Pentium II/Celeron | 333MHz | 5.0x | 66MHz | |||||||||
Pentium II/Celeron | 300MHz | 4.5x | 66MHz | |||||||||
Pentium II/Celeron | 266MHz | 4.0x | 66MHz | |||||||||
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.
14 | ASUS P2B User’s Manual |