If you have a new P67 mobo be careful connecting it to any psu 1200w or higher. I did and it zapped my hard drives, including my ssd, as in they were gone, nothing could recognise them anymore. Everything was replaced by the store that sold me the power supply. Tested 2 different brand new 1200w psu, PC failed to post bios on both. Tested a 700w, 850w, and 1000w PSU's, all worked fine. Me thinking Intel rushed out these boards too soon forgetting some tests. They dont seem to be able to handle anymore than 1000w of power. Just a heads up.