I?ve recently built a system with an A64 3000+ (S754), Aopen AK89 Max & Zalman Cnps7000B CuAl. I have Cool ?n? Quiet enabled and under a light to moderate load, the CPU fan doesn?t come on at all. It will happily idle and run a light load with a system temp of high 30s and CPU temp of high 40s to high 50s. Under a heavier load the CPU will hit 60 and the fan will kick in and cool things down quickly.
This is with no case fans, so just the power supply handling the cooling.
It?s great to have a system that is cool and quiet under my everyday light load conditions, but has all the power I want when I need it. I?m using Speedfan to turn on the CPU and also a case fan if needed, depending on CPU & SYS temps.
Hats off to AMD for the first desktop CPU with decent thermal control. I?d prefer a Pentium M desktop but those are a bit specialist for me.