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Mainboard User's Manual
Frontside BUS Speed Switch (SW3)
Use this switch to set the system's frontside bus (FSB) speed.
4
OFF
OFF
OFF
Note: A CPU clock speed setting of 100/110 MHz requires that
the installed memory modules are PC-100/133. A setting of 133
MHz requires PC-133 memory modules. The CPU clock speed
setting can be adjusted in BIOS Setup. However, when setting
hardware, you must set the CPU frontside bus speed and clock
frequency as shown below:
CPU FSB speed
CPU Clock Ratio Jumper (JP6)
Use this jumper to set the CPU clock ratio.
JP6
30
3
2
ON
ON
ON
OFF
OFF
OFF
OFF
(SW3)
100 MHz
110 MHz
133 MHz
7-8
5-6
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
1
CPU
ON
100 MHz
ON
110 MHz
133 MHz
CPU clock frequency
(SW1)
100 MHz
100 MHz
133 MHz
Pin
3-4
1-2
ON
ON
ON
OFF
OFF
ON
OFF
OFF
ON
ON
ON
OFF
OFF
ON
OFF
OFF
ON
ON
ON
OFF
OFF
ON
OFF
OFF
ON
ON
ON
OFF
OFF
ON
OFF
OFF
PCI
33.33 MHz
36.67 MHz
33.33 MHz
CPU clock
ratio
11
11.5
12
12.5
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
Installing the CPU
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