Asus P2B-VM User Manual page 16

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.
R
P2B-VM CPU Settings
WARNING! Frequencies above 100MHz exceed the specifications for the on-
board 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:
Intel CPU Model Freq.
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.
16
III. INSTALLATION
FS4 FS3 FS2 FS1 FS0 FS4
1 1
2 2
3 3
66.8MHz
CPU CPU
33.4MHz
PCI PCI
FS4 FS3 FS2 FS1 FS0 FS4 FS3
1 1
2 2
3 3
105.0MHz
CPU CPU
35.0MHz
PCI PCI
FS4 FS3 FS2 FS1 FS0 FS4 FS3
1 1
2 2
3 3
CPU 124.0MHz
CPU
PCI 41.3MHz
PCI
CPU Bus Frequency
BF3 BF2 BF1 BF0 BF3 BF2
1 1
2 2
3 3
2.0x(2/1) 2.5x(5/2)
BF3 BF2 BF1 BF0 BF3 BF2
1 1
2 2
3 3
4.0x(4/1) 4.5x(9/2)
CPU Core:Bus Frequency Multiple
(CPU BUS Freq.)
Ratio BUS F. FS4 FS3 FS2 FS1 FS0 BF3 BF2 BF1 BF0
ASUS P2B-VM User's Manual
FS3 FS2 FS1 FS0 FS4 FS3 FS2 FS1 FS0 FS4 FS3 FS2
1 1
2 2
3 3
75.0MHz CPU 83.0MHz CPU 100.3MHz
37.5MHz PCI 41.6MHz PCI 33.4MHz
FS2 FS1 FS0 FS4 FS3 FS2 FS1 FS0 FS4 FS3 FS2 FS1
1 1
2 2
3 3
110.0MHz 112.0MHz 115.0MHz
CPU CPU
36.7MHz 37.3MHz 38.3MHz
PCI PCI
FS2 FS1 FS0 FS4 FS3 FS2 FS1 FS0 FS4 FS3 FS2 FS1
1 1
2 2
3 3
124.0MHz CPU 133.0MHz CPU 133.0MHz
31.0MHz PCI 44.3MHz PCI 33.3MHz
BF1 BF0 BF3 BF2 BF1 BF0 BF3 BF2 BF1 BF0
1 1
2 2
3 3
3.0x(3/1) 3.5x(7/2)
BF1 BF0 BF3 BF2 BF1 BF0
1
2
3
5.0x(5/1)
FS1 FS0 FS4 FS3 FS2 FS1 FS0
1
2
3
CPU 103MHz
PCI 34.3MHz
FS0 FS4 FS3 FS2 FS1 FS0
1
2
3
CPU 120.0MHz
40.0MHz
PCI
FS0
(Freq. Multiple)