Asus P2L97 P2L97 User Manual - Page 14

ASUS P2L97 User's Manual, CPU Bus Frequency, FS0, FS1, FS2, CPU Core:BUS Frequency Multiple, BF0, - specifications

Page 14 highlights

R III. INSTALLATION (Jumpers) III. INSTALLATION 3. CPU Bus Frequency (FS0, FS1, FS2) This option tells the clock generator what frequency to send to the CPU. 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. FS2 FS1 FS0 FS2 FS1 FS0 FS2 FS1 FS0 FS2 FS1 FS0 P2L97 CPU Jumpers 1 1 1 1 2 2 2 2 3 3 3 3 60MHz 66MHz 75MHz 83MHz CPU Bus Frequency 123 123 123 123 123 BF3 BF3 BF3 BF3 BF3 BF2 BF2 BF2 BF2 BF2 BF1 BF1 BF1 BF1 BF1 BF0 BF0 BF0 BF0 BF0 2.0x(2/1) 3.5x(7/2) 4.0x(4/1) 4.5x(9/2) 5.0x(5/1) CPU Core:Bus Frequency Multiple WARNING! Frequencies above 66MHz exceed the specifications for the onboard Intel Chipset and are not guaranteed to be stable. Intel Pentium II Processor in an SEC Cartridge (233-333MHz) 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 Freq. 333MHz 300MHz 266MHz 233MHz Ratio 5.0x 4.5x 4.0x 3.5x BUS F. 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] [1-2] [1-2] [1-2] (Freq. Ratio) BF3 BF2 BF1 BF0 [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. 14 ASUS P2L97 User's Manual

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14
ASUS P2L97 User’s Manual
III. INSTALLATION
(Jumpers)
III.
INSTALLATION
CPU Bus Frequency
CPU Core:Bus Frequency Multiple
4.5x(9/2)
4.0x(4/1)
3.5x(7/2)
2.0x(2/1)
5.0x(5/1)
BF2
BF1
BF3
BF0
12
3
BF2
BF1
BF3
BF0
12
3
BF2
BF1
BF3
BF0
12
3
BF2
BF1
BF3
BF0
12
3
BF2
BF1
BF3
BF0
12
3
60MHz
66MHz
75MHz
83MHz
FS1
FS0
FS2
1
2
3
FS1
FS0
FS2
1
2
3
FS1
FS0
FS2
1
2
3
FS1
FS0
FS2
1
2
3
P2L97 CPU Jumpers
3.
CPU Bus Frequency
(FS0, FS1, FS2)
This option tells the clock generator what frequency to send to the CPU. 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.
WARNING!
Frequencies above 66MHz exceed the specifications for the onboard
Intel Chipset and are not guaranteed to be stable.
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
.
FS2
FS1
FS0
BF3
BF2
BF1
BF0
Intel Pentium II
333MHz
5.0x
66MHz
[1-2]
[1-2]
[1-2]
[2-3]
[1-2]
[1-2]
[2-3]
Intel Pentium II
300MHz
4.5x
66MHz
[1-2]
[1-2]
[1-2]
[2-3]
[1-2]
[2-3]
[1-2]
Intel Pentium II
266MHz
4.0x
66MHz
[1-2]
[1-2]
[1-2]
[2-3]
[1-2]
[2-3]
[2-3]
Intel Pentium II
233MHz
3.5x
66MHz
[1-2]
[1-2]
[1-2]
[2-3]
[2-3]
[1-2]
[1-2]
Intel Pentium II Processor in an SEC Cartridge (233-333MHz)