Yes, a long time ago I downloaded one of these Asus monitorprograms so that I have been able to follow temperature for CPU, Motherboard and informations about the CPU Fan. When I bought the X2 4200+ CPU I was very unsatisfied with the standardcooler (it was very noisy) so I bought one called "Vapochill Micro Ultra low noise". My good IT-friend installed it and it has been a great success. It has a Fan control included and even when this was at its lowest level (around 1100 "swings", at maximum it was around 2300 "swings") it was hard to get the CPU temparature (CPU working 100%) above 45 degrees. Very effective and at 1100 "swings" you hardly hear this cooler.By the way there are tools for watching the CPU temperature for example for ASUS boards.
As you see I have been very careful with my CPU as I expected this piece to be the most vulnerable one when the PC is working 100% non-stop. I'd wish I had would been just as careful with my motherboard (a bigger case and especially removing the dust once a month).
Regards
Per