Asus P2B-LS P2B-LS User Manual - Page 15

ASUS P2B-L/P2B-S/P2B-LS User's Manual, CPU Bus Frequency, FS0, FS1, FS2, CPU Core:BUS Frequency

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III. INSTALLATION 6. CPU Bus Frequency (FS0, FS1, FS2) This option tells the clock generator what frequency to send to the CPU, DRAM, and chipset. 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). 7. 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. R P2B-L/S/LS CPU Settings 123 123 123 123 123 123 123 123 123 BF3 BF2 BF1 BF0 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) 5.5x (11/2) 6.0x (6/1) CPU Core:Bus Frequency Multiple 123 123 123 123 123 123 123 FS2 FS1 FS0 50MHz 66.8MHz 75MHz 83.3MHz 100MHz 103MHz 112MHz CPU Bus Frequency WARNING! Frequencies above 100Mhz exceed the specifications for the onboard Intel Chipset and are not guaranteed to be stable. Intel Pentium II Processor in an SEC Cartridge (233-450MHz) 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.) FS2 FS1 FS0 [1-2] [1-2] [1-2] [1-2] [1-2] [1-2] [1-2] [1-2] [1-2] [2-3] [1-2] [1-2] [2-3] [1-2] [1-2] [2-3] [1-2] [1-2] [2-3] [1-2] [1-2] (Freq. Ratio) BF3 BF2 BF1 BF0 [2-3] [1-2] [2-3] [1-2] [2-3] [1-2] [2-3] [2-3] [2-3] [2-3] [1-2] [1-2] [2-3] [1-2] [1-2] [2-3] [2-3] [1-2] [2-3] [1-2] [2-3] [1-2] [2-3] [2-3] [2-3] [2-3] [1-2] [1-2] 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. ASUS P2B-L/P2B-S/P2B-LS User's Manual 15

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ASUS P2B-L/P2B-S/P2B-LS User’s Manual
15
III. INSTALLATION
CPU Bus Frequency
CPU Core:Bus Frequency Multiple
2.5x (5/2)
2.0x (2/1)
BF2
BF1
BF3
BF0
FS2
FS1
FS0
P2B-L/S/LS CPU Settings
3.0x (3/1)
3.5x (7/2)
4.0x (4/1)
4.5x (9/2)
5.0x (5/1) 5.5x (11/2) 6.0x (6/1)
23
1
23
1
23
1
23
1
23
1
23
1
23
1
23
1
23
1
112MHz
23
1
103MHz
23
1
100MHz
23
1
83.3MHz
23
1
75MHz
23
1
66.8MHz
23
1
50MHz
23
1
6.
CPU Bus Frequency
(FS0, FS1, FS2)
This option tells the clock generator what frequency to send to the CPU, DRAM, and
chipset. 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 ad-
vertised CPU speed).
7.
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.
WARNING!
Frequencies above 100Mhz exceed the specifications for the on-
board Intel Chipset and are not guaranteed to be stable.
Set the jumpers by the Internal speed of your processor as follows:
(BUS Freq.)
(Freq. Ratio)
CPU Model
Fr
eq.
Ratio
BUS F
.
FS2
FS1
FS0
BF3
BF2
BF1
BF0
Intel Pentium II
450MHz
4.5x
100MHz
[1-2]
[1-2]
[1-2]
[2-3]
[1-2]
[2-3]
[1-2]
Intel Pentium II
400MHz
4.0x
100MHz
[1-2]
[1-2]
[1-2]
[2-3]
[1-2]
[2-3]
[2-3]
Intel Pentium II
350MHz
3.5x
100MHz
[1-2]
[1-2]
[1-2]
[2-3]
[2-3]
[1-2]
[1-2]
Intel Pentium II
333MHz
5.0x
66MHz
[2-3]
[1-2]
[1-2]
[2-3]
[1-2]
[1-2]
[2-3]
Intel Pentium II
300MHz
4.5x
66MHz
[2-3]
[1-2]
[1-2]
[2-3]
[1-2]
[2-3]
[1-2]
Intel Pentium II
266MHz
4.0x
66MHz
[2-3]
[1-2]
[1-2]
[2-3]
[1-2]
[2-3]
[2-3]
Intel Pentium II
233MHz
3.5x
66MHz
[2-3]
[1-2]
[1-2]
[2-3]
[2-3]
[1-2]
[1-2]
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.
Intel Pentium II Processor in an SEC Cartridge (233-450MHz)