Thanks Splave and Marvin82! I'm trying a couple settings using SS right now. 250 BCLK with this ES but hav'nt tried to push it further...Does uncorrectable hardware bsod have to do with the cpu or memory? I get that sometimes while trying for 4.80ghz on ss and vantage. I've been testing for an 06 run.. Going to grab some LN2 tomorrow and see.. cheers!