So I just built my first comp. and then decided to take it to a local shop to have them finish up for me. Here is my question, they asked if I wanted to OC and I said sure. They told me they changed my multiplier and that was all. They didn't have to change the voltage. They ran it on I believe it was CPU-Z to get a rating. They showed it to me and my machine is running at 4.0 is this a good stable number to run at? They said he ran it for a day and a half and it ran perfect, and didn't run hot. They said the E8500 runs these numbers without any issues. That if I wanted to mess with it later I could and make it run faster, but to just be careful especially seeing I don't no what I'm doing. My comp is running on air....