I've been reading a lot about system temps and mine seems well within specifications but I'm wondering if I could do better. When idling.. my P4-2.0a runs at about 40-42 celsius and under full load is around 47-49 the motherboard seems to hover around 40-43 usually and maybe a tad higher under a load. Sometimes, the board temp is higher then the CPU temp.. is that a result of bad ventilation??? Right now I'm using an average size Midtower with just the PS fan as an exhaust. Also, when considering fans what's the dB rating going to be on an extremely silent one... I was thinking upper 20's or lower. Thanks..