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Hardware setup, 18 asus p3b-f user’s manual, P3b-f cpu external frequency selection – Asus P3B-F User Manual

Page 18

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18

ASUS P3B-F User’s Manual

3. HARDWARE SETUP

Motherboard Settings

3. H/W SETUP

2) CPU External Frequency Selection (DSW-Switches 7-10)

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

NOTE: In JumperFree mode, all dip switches (DSW) must be set to OFF.

R

P3B-F

P3B-F CPU External
Frequency Selection

CPU/DRAM
PCI BUS

CPU/DRAM
PCI BUS

CPU/DRAM
PCI BUS

CPU/DRAM
PCI BUS

CPU/DRAM
PCI BUS

CPU/DRAM
PCI BUS

100.0MHz

33.4MHz

ON

1 2 3 4 5

6 7 8 9 10

133.0MHz

44.3MHz

ON

1 2 3 4 5

6 7 8 9 10

112.0MHz

37.3MHz

ON

1 2 3 4 5

6 7 8 9 10

103.0MHz

34.3MHz

ON

1 2 3 4 5

6 7 8 9 10

66.0MHz
33.4MHz

ON

1 2 3 4 5

6 7 8 9 10

83.0MHz
41.6MHz

ON

1 2 3 4 5

6 7 8 9 10

75.0MHz
37.5MHz

ON

1 2 3 4 5

6 7 8 9 10

133.0MHz

33.3MHz

ON

1 2 3 4 5

6 7 8 9 10

124.0MHz

41.3MHz

ON

1 2 3 4 5

6 7 8 9 10

124.0MHz

31.0MHz

ON

1 2 3 4 5

6 7 8 9 10

150.0MHz

37.5MHz

ON

1 2 3 4 5

6 7 8 9 10

140.0MHz

35.0MHz

ON

1 2 3 4 5

6 7 8 9 10

105.0MHz

35.0MHz

ON

1 2 3 4 5

6 7 8 9 10

110.0MHz

36.7MHz

ON

1 2 3 4 5

6 7 8 9 10

115.0MHz

38.3MHz

ON

1 2 3 4 5

6 7 8 9 10

120.0MHz

40.0MHz

ON

1 2 3 4 5

6 7 8 9 10

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

WARNING!

Frequencies above 100MHz exceed the specifications for the

onboard Intel Chipset and are not guaranteed to be stable.