IM having a bitch of a time getting my overclock on this classified past 4.3ghz, and run vantage or anything close. I used to be able to run 4.45ghz on my UD5 with 1.44V vocre and 1.475 Vtt, now I am trying that voltage on the classified and I get nothing stable, nor anything higher, I tried 1.525V vcore and 1.550V Vtt, and nothing no stability in vantage. Now I tried lowering my Uncore ratio which was x18, to x16 since I am running x8 memory and doing so gave me a result where the computer wouldn't post..I am not havign much luck with this board. I am unable to even get an uncore of x20 to work with these new Kingston HyperX kit, when tryign to run ram speeds of 1000Mhz +, any suggestions on some settings.