Asus KN97 User Manual page 18

7. CPU External (BUS) Frequency Selection (FS0, FS1)
These jumpers tell the clock generator what frequency to send to the CPU. These
allow the selection of the CPUs External frequency (or BUS Clock). The BUS Clock
times the BUS Ratio equals the CPUs Internal frequency (the advertised CPU speed).
8. 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.
Set the jumpers by the Internal speed of the Intel, AMD, or Cyrix CPU as follows:
CPU Model Freq.
Intel Klamath 266MHz
Intel Klamath 233MHz
Intel Pentium II CPU Cartridge
(233-266MHz 256/512KB L2 Cache)
NOTE: Voltage Regulator Output Selection (VID) is not needed for the Pentium II
CPU Cartridge because this CPU sends a VID signal directly to the onboard power
controller.
18
III. INSTALLATION
1 2 3
66MHz
2.5X
4.5X
CPU : BUS Frequency Ratio
Ratio BUS Freq.
4.0x 66MHz
3.5x 66MHz
ASUS KN97-X User's Manual
1 2 3
FS0 CPU External Clock (BUS)
Frequency Selection
FS1
60MHz
3.0X 3.5X
5.0X 5.5X
(BUS Freq.) (Freq. Ratio)
FS0 FS1 BF3 BF2
[2-3] [1-2] [short] [open] [short] [short]
[2-3] [1-2] [short] [short] [open] [open]
4.0X
Reserved
BF1 BF0