nas.. those temps of 46 46 46 49 on idle.. are those at stock CPU speeds? or overclocked. my room during the winter gets cold, but during the summer I keep the AC around 78F just to keep the AC bill down. at stock speeds my CPU sat around 30c.. and overclocked it was around 38c If I remember right, but now I'm under water, and at 4.0 Ghz and my temps are around 28-31c idle.. even now it's getting up to 78F in my house.

if your temps are 46-49c at stock speeds, those are terrible temps and you should try a reseat, what thermal paste did you use? I think you'd get a good increase using the TRUE..