I am not new to overclocking, but wanted to get everything done properly as this is my first intel CPU. The problem however is that when I change the cpu ratio in the bios it shows the adjusted clock speeds as it should (4.2ghz in this case), but when I log into windows CPU-Z shows that I am still running stock speeds (3.3ghz rather then 4.2ghz). Even after restarting and going back into the bios it still shows the clock speed as 4.2ghz, but no matter how many times I restart windows CPU-Z always shows stock speeds.
in the thread I linked it tells you to disable some of the CPU features and it turns out that having power technology disabled causes my motherboard to ignore the CPU multiplier/ratio. No idea why, perhaps some kind of safety net?
Anyway I'm now clocked at 4.5Ghz at 1.3v with max temps of 68C under 100% load.