Asus P2B-VM Computer Hardware User Manual


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16 ASUS P2B-VM User’s Manual
Jumpers
III. INSTALLATION
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.
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.
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]
WARNING! Frequencies above 100MHz exceed the specifications for the on-
board Intel Chipset and are not guaranteed to be stable.
P2B-VM CPU Settings
CPU Bus Frequency
75.0MHz
37.5MHz
83.0MHz
41.6MHz
66.8MHz
33.4MHz
100.3MHz
33.4MHz
FS1FS2 FS0FS3
1
2
3
FS4 FS1FS2 FS0FS3
1
2
3
FS4 FS1FS2 FS0FS3
1
2
3
FS4 FS1FS2 FS0FS3
1
2
3
FS4 FS1FS2 FS0FS3
1
2
3
FS4
103MHz
34.3MHz
110.0MHz
36.7MHz
112.0MHz
37.3MHz
105.0MHz
35.0MHz
115.0MHz
38.3MHz
FS1FS2 FS0FS3
1
2
3
FS4 FS1FS2 FS0FS3
1
2
3
FS4 FS1FS2 FS0FS3
1
2
3
FS4 FS1FS2 FS0FS3
1
2
3
FS4 FS1FS2 FS0FS3
1
2
3
FS4
120.0MHz
40.0MHz
124.0MHz
31.0MHz
133.0MHz
44.3MHz
124.0MHz
41.3MHz
133.0MHz
33.3MHz
FS1FS2 FS0FS3
1
2
3
FS4 FS1FS2 FS0FS3
1
2
3
FS4 FS1FS2 FS0FS3
1
2
3
FS4 FS1FS2 FS0FS3
1
2
3
FS4
CPU
PCI
CPU
PCI
CPU
PCI
CPU
PCI
CPU
PCI
CPU
PCI
CPU
PCI
CPU
PCI
CPU
PCI
CPU
PCI
CPU
PCI
CPU
PCI
CPU
PCI
CPU
PCI
CPU Core:Bus Frequency Multiple
4.0x(4/1)
BF1
BF2
BF0BF3
1
2
3
5.0x(5/1)
BF1
BF2
BF0BF3
1
2
3
4.5x(9/2)
BF1
BF2
BF0BF3
1
2
3
2.0x(2/1)
BF1
BF2
BF0BF3
1
2
3
2.5x(5/2)
BF1
BF2
BF0BF3
1
2
3
3.0x(3/1)
BF1
BF2
BF0BF3
1
2
3
3.5x(7/2)
BF1
BF2
BF0BF3
1
2
3
R
WARNING! PCI frequencies above 33MHz exceed the specifications for PCI
cards and are not guaranteed to be stable.
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