I just overclocked my i7 2600k to 4ghz, and am wondering if this voltage is okay. I am not doing anything that requires extensive use of the CPU at the moment. To me, it seems a bit high. Is this normal? I'm using the fan that came with the 2600k, and have a few around my case. I have an MSI p67 motherboard and 650 watt power supply, and 1 120GB SSD and 1 320GB hard drive.