current i have xigmatek s1284c achilles on my q6600@3.2ghz and the temperature were as high as 48c on idle...will this coolIT domino lower my temperature summore

I have an Xigmatek s1284c on my Q6600@3.2ghz now...and the temperature were high during the day can reach 50c idle sometime..usually stay at 48c..even at midnight stay at 43c idle...will this CoolIT Domino lower my temperature significantly...i have try Thermaltake V1 AX and CM hyper 212 also..but the result are worst