R658N Jumper Setting
For the
Hardware
Jumper setting :
You need to set the few jumpers for setting the CPU Clock & Ratio. Please refer
to the following information.
CPU Clock Ratio : JP8, JP9, JP10, JP11
CPU Clock Ratio
Rate
JP8
JP9
JP10
JP11
2X
1-2
1-2
1-2
1-2
2.5X
1-2
1-2
1-2
2-3
3X
1-2
1-2
2-3
1-2
3.5X
1-2
1-2
2-3
2-3
4X
2-3
1-2
1-2
1-2
4.5X
2-3
1-2
1-2
2-3
5X
2-3
1-2
2-3
1-2
5.5X
2-3
1-2
2-3
2-3
6X
1-2
2-3
1-2
1-2
CPU & Bus Clock Select : JP4
JP4
CPU CLK
AGP CLK
PCI CLK
1-2
3-4
5-6
MHz
MHz
MHz
Short
Short
Open
133.3*
66.6*
33.3*
Short
Open
Short
124*
62*
31*
Short
Short
Short
112*
74.7*
37.3*
Open
Open
Open
100.2
66.8
33.4
Short
Open
Open
95.2
63.5
31.7
Open
Short
Open
83.3
66.6
33.3
Open
Open
Short
75
75
37.5
Open
Short
Short
66.8
66.8
33.4
* These are for reference only.
Future Function Jumper: JP7
Function
JP7
Default Setting
1-2 Close
CMOS Clear Jumper : JP12
Function
JP12
