I dont think there is anything to be afraid of with overclocking your chip if you take your time with it. There are some great guys here that will be able to help you with your overclock. What caused your computer to freeze ..... hard to say. Odds are heat or you need a bit more voltage for your cpu.Down load CPUZ, HW Monitor and CoreTemp and somethig to stress your CPU with like Prime 95. We will need views from each CPUZ tabs, CPU, Memory and SPD tabs as well as HWMonitor open with your CPU under fullload with Prime running in the background. Get a screen shot of this and crop out whatever you dont need to show to make it easier to see and post it so we can see what your settings and how hot your CPU is running. You should also make a a signature in your profile with what components you have in your system , case, cpu, motherboaard, memory, GPU, powersupply, case ..... etc. I am not up on unlocking CPU as I have never had a reason to do it but I am sure someone will come along that has and can help more.