waterkit huh?which one dya have? corsair H???
well as far as reviews go, that asus board is the highest end board (except the ROG series) to overclock like crazy. If you had to re-install win7 then you def didn't do it the right way.
google will help you find a guide to overclocking that ship on that board. If you can't I'll pitch in with some typing.
ram check out fine, they are nice for newbs to overclock their rigs.
case? If you could detail how the overclock went, then maybe we can find out if your case does have proper airflow.