I am totally new to overclocking and i'm planning on buying a new mobo/cpu but in the mean time I want to squeeze as much power out of my current parts as possible. my system specs a Windsor AMD X2 4200+ @ 2.2Ghz, 4gb of Ram,ABIT KN9 Motherboard ,and an nvidia 9500gt. I've also installed a Corsair H50 high performance cooler.
We need start with the basic, since your CPU is locked multiplier you will need change the RAM speed from 5300 to the lowest possible. After that you need rise the FSB in little steps and keep the NB and HT the most possible near to 2000MHz. Try to boot and test your rig for stability with LinX, check your temps too and dont go with too much temps or voltage or you can damage the CPU.