Asus P2E-VM P2E-VM User Manual - Page 16

ASUS P2L-VM/P2E-VM User's Manual, CPU External BUS Frequency Selection, FS0, FS1, FS2, CPU to BUS

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R III. INSTALLATION Jumpers III. INSTALLATION 5. CPU External (BUS) Frequency Selection (FS0, FS1, FS2) These jumpers tell the clock generator what frequency to send to the CPU. These allow the selection of the CPU's External frequency (or BUS Clock). The BUS Clock times the BUS Ratio equals the CPU's Internal frequency (the advertised CPU speed). 6. CPU to BUS Frequency Ratio (BF0, BF1, BF2, BF3) These jumpers set the frequency ratio between the Internal frequency of the CPU and the External frequency (called the BUS Clock) within the CPU. These must be set together with the above jumpers CPU External (BUS) Frequency Selection. P2L-VM/P2E-VM CPU Settings 123 123 123 FS0 FS1 FS2 60MHz 66MHz 68MHz CPU Bus Frequency 123 75MHz 123 83MHz BF3 BF2 BF1 BF0 BF3 BF2 BF1 BF0 BF3 BF2 BF1 BF0 1 1 1 2 2 2 3 3 3 3.0x(3/1) 3.5x(7/2) 4.0x(4/1) BF3 BF2 BF1 BF0 BF3 BF2 BF1 BF0 1 1 2 2 3 3 4.5x(9/2) 5.0x(5/1) CPU Core:Bus Frequency Multiple WARNING! Do not overclock your processor. Frequencies above 66MHz exceed the specifications for the onboard Intel Chipset and are not guaranteed to be stable. Overclocking can cause undue stress on the CPU and motherboard. It may result in a slower speed or other unpredictable outcomes. The table on the following page shows the approved CPUs and their settings. Set the jumpers by the Internal speed of your processor as follows: CPU Model Speed Intel Pentium II 333MHz Intel Pentium II 300MHz Intel Pentium II 266MHz Intel Pentium II 233MHz F. Ratio 5.0x 4.5x 4.0x 3.5x BUS F. 66MHz 66MHz 66MHz 66MHz (BUS Freq.) FS0 FS1 FS2 [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) BF0 BF1 BF2 BF3 [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] Intel Pentium II Processor in a SEC Cartridge (233-333MHz 512KB/128KB/0KB L2 Cache) NOTE: 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. 16 ASUS P2L-VM/P2E-VM User's Manual

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16
ASUS P2L-VM/P2E-VM User’s Manual
III. INSTALLATION
Jumpers
III.
INSTALLATION
Intel Pentium II Processor in a SEC Cartridge
(233-333MHz 512KB/128KB/0KB L2 Cache)
Set the jumpers by the Internal speed of your processor as follows:
(BUS Freq.)
(Freq. Ratio)
CPU Model
Speed
F
. Ratio
BUS F
.
FS0
FS1
FS2
BF0
BF1
BF2
BF3
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]
[1-2] [2-3] [1-2] [2-3]
Intel Pentium II
266MHz
4.0x
66MHz
[1-2] [1-2] [1-2]
[2-3] [2-3] [1-2] [2-3]
Intel Pentium II
233MHz
3.5x
66MHz
[1-2] [1-2] [1-2]
[1-2] [1-2] [2-3] [2-3]
NOTE:
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.
5.
CPU External (BUS) Frequency Selection
(FS0, FS1, FS2)
These jumpers tell the clock generator what frequency to send to the CPU.
These
allow the selection of the CPU’s
External
frequency (or
BUS Clock
).
The BUS Clock
times the BUS Ratio equals the CPU's
Internal
frequency (the advertised CPU speed).
6.
CPU to BUS Frequency Ratio
(BF0, BF1, BF2, BF3)
These jumpers set the frequency ratio between the
Internal
frequency of the CPU
and the
External
frequency (called the
BUS Clock
) within the CPU.
These must
be set together with the above jumpers
CPU External (BUS) Frequency Selection.
CPU Core:Bus Frequency Multiple
P2L-VM/P2E-VM CPU Settings
CPU Bus Frequency
3.5x(7/2)
4.0x(4/1)
4.5x(9/2)
5.0x(5/1)
3.0x(3/1)
BF1
BF2
BF0
BF3
1
2
3
BF1
BF2
BF0
BF3
1
2
3
BF1
BF2
BF0
BF3
1
2
3
BF1
BF2
BF0
BF3
1
2
3
BF1
BF2
BF0
BF3
1
2
3
FS2
FS1
FS0
60MHz
123
66MHz
123
68MHz
123
75MHz
123
83MHz
123
WARNING!
Do not overclock your processor. Frequencies above 66MHz ex-
ceed the specifications for the onboard Intel Chipset and are not guaranteed to be
stable. Overclocking can cause undue stress on the CPU and motherboard. It
may result in a slower speed or other unpredictable outcomes. The table on the
following page shows the approved CPUs and their settings.