Hi guys, i've read a few threads on overclocking but still do not understand it completely. I want to overclock my CPU to preferably to 4.5GHz. I have a 3570k Ivy Bridge CPU and Z77X-UD5H Gigabyte MotherBoard. Need help to over clock. Also I don't understand why we increase the FSB instead of CPU ratio. Could someone give me a link to a video for this or Step by Step instructions.