I have a Gigabyte X48 DS4, trying to get my E8400 to 4Ghz, and I wanted to ask a question, whats a safe voltage for the (G)MCH? My bios has the option of Normal, or +x.xxx in 0.025V increasements. How far can I go? I have stock cooler on, no fan. Also, what is the stock voltage, it's giving me a headache trying to find it.