Ok well heres my second at 3.0ghz. When i had it at 4.0 i had it down to 15c idle
Good score
15c at idle is damn good for 4Ghz
You dont need to worry about your temps at all!
What I would suggest doing is lowering your multi and getting a higger fsb, makes all the difference imo, lowers your clock though, but it makes for better performance
Im sitting @ 400FSB @ the mo, just while this ram runs in abit, before I push her to the max, will probably go back to 2.8Ghz/400FSB though coz its shit hot fast @ the min with tight timings
Dont want to prematurely kill her for no need!