I was just looking around the sensors web site and noticed that the lm93 is not on the list of supported chips on the web page: http://www2.lm-sensors.nu/~lm78/supported.html It's only supported on kernel version 2.4, but it does work very well. I compiled up lm_sensors 2.9.0 and i2c 2.9.1 and ran sensors-detect. The entry for the lm93 looked like this: Probing for 'National Semiconductor LM93' ... Success! (confidence 5, driver 'to-be-written') Thanks once again for looking into this, David