21
Jumper Settings for AMD Processors
PR-Rating
K5 PR90/PR120
K5 PR100/PR133/PR166
K6/166, K6/200, K6/233
Ext. System Bus Clk
60MHz
66MHz
66MHz
JP28
1-2 On
1-2 Off
1-2 Off
Freq. Ratio
1.5x
2.5x
3x
3.5x
JP1
1-2 On
2-3 On
1-2 On
1-2 On
PR-Rating
K5 PR90/PR100/
PR120/PR133
K5 PR166
K6/166
K6/200
K6/233
JP2
1-2 On
2-3 On
2-3 On
1-2 On
JP28
JP1 JP2
*
Default
CPU Voltages
2.8V
2.9V
3.2V
3.3V
3.5V*
Pins
7-8
On
On
On
On
On
Pins
5-6
Off
Off
On
On
On
Pins
3-4
Off
Off
Off
Off
On
Pins
1-2
Off
On
Off
On
On
JP15
JP29
Pins
1-2
Off
Off
Off
Off
Off
Pins
3-4
On
On
On
On
On
JP29
1
2
7
8
4
2
3
1
JP15