Note: this thread is about overclocked i7-3770 processors, not the 3770K. If you have a 3770K there's a thread for that. The ability of some motherboards to slightly overclock some 3770 CPUs (we haven't run an exhaustive survey) has been discussed in some other threads: http://www.tonymacx86.com/general-hardware-discussion/87932-core-i7-3770k-slower-than-i7-3770-a.html http://www.tonymacx86.com/overclocking/87693-slightly-overclocking-i7-3770-ok.html If you do manage to overclock your i7-3770, share the info here. And make sure you supply adequate cooling! Using my experience overclocking a 3770K, I tweaked the turbo ratio and voltage of this 3770 and quickly got to a stable 4.1 GHz setup. My result: i7-3770 in GA-Z77-D3H (see build post) Cooler: stock Intel cooler Clocked to 4.1 GHz, with a V[sub]core[/sub] offset of -0.100V. Temps: (Ambient: ~25C) Idle/general: 33-45C Prime95/large: 74-79C Prime95/small: 79-82C64-bit Geekbench: 15180 As far as I can tell that's right in line with reported results for a 4.1 GHz i7-3770K. The fan on the Intel cooler goes up to 2140 rpm under load and if I put my ear near the back of the machine I can hear it, but that requires crawling under the desk. There's enough background aircon hum here that the noise is a non-issue.