Jp1, Jp2, Jp3: Bus Ratio Select - SOLTEK 82440FX User Manual

JP1, JP2, JP3: Bus Ratio Select

Set these jumpers according to your CPU clock.
Notice that the cap colors of JP1~JP3 are RED.
12
2X
JP3
JP2
JP1
4X
JP3
JP2
JP1
–
+
2.5X 3X
4.5X 5X
3.5X
5.5X
JP3
JP2
JP1