18
Jumper Settings for Cyrix CPUs
2
4
JP
9
6
2
5
1
JP2
0
1
2
3
4
JP1
2
6
2
5
1
JP1
0
Cyrix CPU
s
P120+/P133+
/
P150+/P166
+
Freq. Rati
o
2
x
JP1
2
1-2 On, 3-4 Of
f
Warning
:
The default setting of JP9, JP10, JP20 an
d
JP21 is 3.3V. If the voltage of your CPU i
s
not 3.3V, make sure you set JP9, JP10,
JP20 and JP21 according to the voltage o
f
your CPU, otherwise, your system will
hang
.
Voltage
s
2.5
V
2.8
V
2.9
V
3.3V
*
3.5
V
JP
9
3-4 O
n
3-4 O
n
3-4 O
n
3-4 O
n
1-2 O
n
JP1
0
1-3, 2-4 O
n
1-3, 2-4 O
n
1-3, 2-4 O
n
3-5, 4-6 O
n
3-5, 4-6 O
n
JP2
0
1-2 O
n
3-4 O
n
5-6 O
n
3-4 O
n
3-4 O
n
JP2
1
1-2, 3-4 Of
f
1-2, 3-4 Of
f
1-2, 3-4 Of
f
1-2, 3-4 O
n
1-2, 3-4 O
n
Cyrix CPU
s
P120
+
P133
+
P150
+
P166
+
Ext. Bu
s
CL
K
50MH
z
55MH
z
60MH
z
66MH
z
JP
7
1-2 On, 3-4 O
n
1-2 Off, 3-4 Of
f
1-2 On, 3-4 Of
f
1-2 Off, 3-4 O
n
JP
7
4
3
2
1
JP2
1
4
3
2
1
1
3
