how's the result. tempted to get it as it's not that huge. don't know it fits P5B or not under a BTVX.

Errr... now thats weird.. Im pretty sure the highest i've got under load @ 460fsb @ no aircond room was about 40c, at most 42c on the default ds3..

chipset temperature, core temperature, speedfan.. something doesnt sound rite here.. im getting confused meself.

for me, speedfan only shows 'accurately' the chipset temperature.

I use TAT to monitor my Core(s) temperature

And yes, right now, my chipset temperature is like 40c underload. Probably because i have a 120mm side fan blowing directly to it, and coupled with a low profile graphics card makes the air circulation better i guess. It could go down as low as 30c @idle with the aircond on.