I've never overclocked Macs before so I can help you there. I've overclocked Intel and AMD processors and one thing I learned is to go slowly. You raise FSB by 5 and test, if it fails you raise voltage a bit and test. There are many methods and you can find guides on how to do it on many forums.
Read and learn about your processor and have realistic expectations before doing anything. You CAN kill your CPU or motherboard if you do it wrong. For some people the 10-20% is not worthy but for me is more of a hobby than anything else, I don't play games on the computer.
Read and learn about your processor and have realistic expectations before doing anything. You CAN kill your CPU or motherboard if you do it wrong. For some people the 10-20% is not worthy but for me is more of a hobby than anything else, I don't play games on the computer.