11
Jumper Settings for Cyrix 6x86 CPUs
Cyrix CPUs
P120+/P133+/
P150+/P166+
Freq.
Ratio
2x
Pin 1-2
On
Pin 3-4
Off
JP8
JP8
2
1
4
3
JP9
2
1
4
3
* Default
Voltage
3.3V*
3.5V
JP9
1-2 On
3-4 On
Cyrix CPUs
P120+
P133+
P150+
P166+
Ext. Bus
CLK
50MHz
55MHz
60MHz
66MHz
Pin 1-2
On
Off
On
Off
Pin 3-4
On
Off
Off
On
JP6
Warning:
The default setting of JP9 is 3.3V. If
the voltage of your CPU is not 3.3V,
make sure you set JP9 according to
the voltage of your CPU, otherwise,
your system will hang.
4
2
3
1
JP6