20
Jumper Settings for AMD-K5 Processors
Voltages
2.7V
2.8V
2.9V
3.3V*
(VR/STD)
3.5V
(VRE)
JP2
1-3, 2-4 On
1-3, 2-4 On
1-3, 2-4 On
3-5, 4-6 On
3-5, 4-6 On
JP3
1-2 On
3-4 On
5-6 On
3-4 On
3-4 On
JP4
3-4 On
3-4 On
3-4 On
3-4 On
1-2 On
JP7
1-2, 3-4 Off
1-2, 3-4 Off
1-2, 3-4 Off
1-2, 3-4 On
1-2, 3-4 On
P-Rating
PR75
PR90/PR120
PR100/PR133/PR166
Ext. Bus
CLK
50MHz
60MHz
66MHz
JP10
1-2 On
1-2 On
1-2 On
JP11
1-2 On
3-4 On
1-2 On
JP12
1-2 On
1-2 On
3-4 On
P-Rating
PR75/PR90/PR100/
PR120/PR133
PR166
Freq. Ratio
1.5x
1.75x
JP5
1-3 On, 2-4 On
3-5 On, 4-6 On
Warning:
The default setting of JP2, JP3, JP4 and JP7 is
3.3V. If the voltage of your CPU is not 3.3V,
make sure you set JP2, JP3, JP4 and JP7
according to the voltage of your CPU, otherwise,
your system will hang.
JP10
JP11
JP12
2
1
4 6
35
2
1
4 6
35
JP5
JP2/JP3
3
4
1
2
JP4/JP7

JP7

JP2

JP3

JP4

JP5

JP12

JP11

JP10