Thanks for the info - yeah I can't believe how hot the chipset runs!
On a Gigabyte 6600 graphics card with "silent pipe" heatsink construction (2 big heatsinks, no fan), I measured 80°C with the case lid off. The mobo heatsink feels about the same temp. Not sure how they want to survive 3 years warranty with that. The best solution would be another slow-moving fan - something the design of both things intended to avoid in the first place.
Following your instructions I initialised sensors (with the default conf file), rebooted (went to make a coffee) and came back to a machine that sounded like a wailing banshee :) Guess those configuration values are wrong ;)
I heard this too - perhaps you have the same BIOS settings. A 3200+ Venice core CPU runs very cold - with a little fan movement well below 30°C unloaded. So I tried to set the BIOS CPU fan control manually (25° fan turn-off, 35°/45°/50°, 55° full speed, PWM 2/4/8/80 or something like that), and enabled "CPU fan fail warning". Well guess what - when turning the box on, the CPU is < 25°, the fan is off, and the alarm goes berserk. Doh. The choice is between "automatic CPU fan control" with fan fail warning, and manual control without. Theoretically lm_sensors is able to control the fan PWM, but I haven't got that far yet. My current version of sensors.conf is at http://volker.dnsalias.net/linux/tech/lm_sensors/ Volker -- Volker Kuhlmann is possibly list0570 with the domain in header http://volker.dnsalias.net/ Please do not CC list postings to me.