Asus P2B98-XV P2B98-XV User Manual - Page 14

ASUS P2B98-XV User's Manual, CPU Bus Frequency FSB, CPU Core:BUS Frequency Multiple BF0, BF1, BF2,

Page 14 highlights

III. INSTALLATION 3. CPU Bus Frequency (FSB) 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 frequency (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. P2B98-XV CPU Jumpers 123 123 123 123 123 BF0 BF1 BF2 BF3 2.0x(2/1) 2.5x(5/2) 3.0x(3/1) 3.5x(7/2) 4.0x(4/1) CPU Core:Bus Frequency Ratio 1 23 4.5x(9/2) 1 23 5.0x(5/1) FSB FSB 1 1 2 2 3 3 66MHz 100MHz CPU Bus Frequency WARNING! Frequencies above 100Mhz exceed the specifications for the onboard Intel Chipset and are not guaranteed to be stable. III. INSTALLATION Jumpers Intel Pentium II Processor in an SEC cartridge (233-450MHz 512KB/128KB/0KB L2 Cache) Set the jumpers by the Internal speed of your processor as follows: CPU Model Intel Pentium II Intel Pentium II Intel Pentium II Intel Pentium II Intel Pentium II Intel Pentium II Intel Pentium II Freq. 450MHz 400MHz 350MHz 333MHz 300MHz 266MHz 233MHz Ratio 4.5x 4.0x 3.5x 5.0x 4.5x 4.0x 3.5x BUS F. 100MHz 100MHz 100MHz 66MHz 66MHz 66MHz 66MHz (BUS Freq.) FSB [1-2] [1-2] [1-2] [2-3] [2-3] [2-3] [2-3] (Freq. Ratio) BF0 BF1 BF2 BF3 [1-2] [2-3] [1-2] [2-3] [2-3] [2-3] [1-2] [2-3] [1-2] [1-2] [2-3] [2-3] [2-3] [1-2] [1-2] [2-3] [1-2] [2-3] [1-2] [2-3] [2-3] [2-3] [1-2] [2-3] [1-2] [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 processor because it sends a VID signal directly to the onboard power controller. 14 ASUS P2B98-XV User's Manual

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14
ASUS P2B98-XV User’s Manual
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.
Set the jumpers by the Internal speed of your processor as follows:
(BUS Freq.)
(Freq. Ratio)
CPU Model
Fr
eq.
Ratio
BUS F
.
FSB
BF0
BF1
BF2
BF3
Intel Pentium II
450MHz
4.5x
100MHz
[1-2]
[1-2]
[2-3]
[1-2]
[2-3]
Intel Pentium II
400MHz
4.0x
100MHz
[1-2]
[2-3]
[2-3]
[1-2]
[2-3]
Intel Pentium II
350MHz
3.5x
100MHz
[1-2]
[1-2]
[1-2]
[2-3]
[2-3]
Intel Pentium II
333MHz
5.0x
66MHz
[2-3]
[2-3]
[1-2]
[1-2]
[2-3]
Intel Pentium II
300MHz
4.5x
66MHz
[2-3]
[1-2]
[2-3]
[1-2]
[2-3]
Intel Pentium II
266MHz
4.0x
66MHz
[2-3]
[2-3]
[2-3]
[1-2]
[2-3]
Intel Pentium II
233MHz
3.5x
66MHz
[2-3]
[1-2]
[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.
III. INSTALLATION
Jumpers
III.
INSTALLATION
3.
CPU Bus Frequency (FSB)
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.
CPU Bus Frequency
CPU Core:Bus Frequency Ratio
4.0x(4/1)
3.5x(7/2)
3.0x(3/1)
2.5x(5/2)
2.0x(2/1)
BF2
BF3
BF1
BF0
1
2
3
100MHz
1
2
3
66MHz
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
4.5x(9/2)
5.0x(5/1)
FSB
FSB
P2B98-XV CPU Jumpers
Intel Pentium II Processor in an SEC cartridge
(233-450MHz 512KB/128KB/0KB L2 Cache)