I know you wanted stock but my Q6600 B3 running @3.0ghz with a slight bump up in voltage,a Scythe S flex fan @ 1000rpm is folding with 2 instances of SMP (all cores are stable at 100%) and core temps are 46deg C.
My temps are high then. I think I'll remount the heatsink.
I'm getting 40 40 35 35 on idle @ stock speed. Used to be lower. It must be my ultra slide movement when I hit it last time I opened my case to reset CMOS (unrelated problem).
Will add a 63 CFM fan to the side too.
I reached 3.2(8*400)GHz before. and my load temp were 69 68 65 64. I think if I overclock to 3.2 now core temps will go >70
believe when they say that the ambient temperature effects the temperature by a good amount. I have a G0 3.6ghz @ 1.46v Ultra 120 (non extreme). When the room is about 80+ F, my load w/ Prime 95's Small FFT rises to about 70C. But air conditioned at around 70 degrees, it will only reach about 64 C at the highest point. Idles at arond 35 C. Just some food for thought when looking at everybody elses temps.
Antec 900...I don't have a fan mounted on the CPU heatsink yet...I tried to put it on wrong and I screwed up the mounting wires...I'm gonna try to get new ones.