Well, I decided to go out and buy a new computer from Best buy, because for a prebuilt, it had a great price. It is an Asus tower, with a 1TB 7200RPM hard disk, 16GB of ram (2*8), a Gt 630, and most importantly, the I7 3770, for only $700. (Unopened, and came with keyboard, mouse, and screen.) anyway, since Ive never overclocked a locked CPU before, I am looking to the community for answers. It can reach 3.9GHZ with turbo boost, so why not 4GHZ without adjusting any voltage?