Just a heads-up regarding these tickets and the Asus P3V4X, as the tickets don't appear to have a successful resolution. I was experiencing exactly the same issues mentioned in all 3 tickets. The stock sensors.conf from version 2.6.4 both fixes the temperature (temp2 sensor) issue and more importantly the massive slowdown (almost exactly 1/4 speed). To confirm your guesses: The temp alarm is what's causing the slowdown, of this I am 100% sure. If I change the settings on the temp sensor 'compute' entry to trigger an alarm, I get massive slowdown. When I change it back, it fixes the issue. However, this reversal does not happen if I do not force as99127f detection (it stays unbearably slow until reboot). Forcing as99127f rather than relying on 'automatic' detection via the w8378xd driver uses the correct sensor.conf entries, and works well all round. Incidentally, sensor-detect does not detect either of the two chip drivers, just the base i2c-viapro. Great piece of software, if one that causes interesting light and sound shows in our colo room ;) D. -- Dom Gallagher (dgallagher at starnetusa.net) Development Engineering StarNet/MegaPOP - http://www.megapop.net WX is wireless - http://www.starnetwx.net This message is sent in confidence to the addressees. It may contain privileged, proprietary, or confidential information.