Nothing until you understand what each part is doing and why you're doing it. That way you're not just blindly following someone else's settings. Each chip will OC differently and will have different fault points. If you don't want to go through all of that then I would just see if your bios has a built in overclock and select one of those options.
I don't know what emulator you're running but that processor is faster than any single item that has been put out that you would emulate so the need to OC it for that is not going to help much. If you're having problems with an emulator I would check into that before OCing your processor just for it.
If you want to learn and start OCing just because then I would start here:
http://www.techpowerup.com/forums/showthread.php?t=164927
I don't know what emulator you're running but that processor is faster than any single item that has been put out that you would emulate so the need to OC it for that is not going to help much. If you're having problems with an emulator I would check into that before OCing your processor just for it.
If you want to learn and start OCing just because then I would start here:
http://www.techpowerup.com/forums/showthread.php?t=164927
