i have an intel dual core e2200 and msi g33m-gih mb.i don't know how to oc it ,please told me step wise process.thanks

take all the pictures in your bios include th settings.because myself and many other never used the G33 mobo hence unfamiliar.

have you attempted yourself?ever?

There's a guide here. Read it carefully before doing anything.

Here's the link in case you somehow missed it: http://www.tomshardware.com/forum/ [...] uals-guide

Although the guide uses a Quad and a different motherboard, concept wise it's the same. If you want to understand the process of OCing, then read is carefully.