lmsensors

lmsensors is a hardware monitoring tool which is able to read thermal and voltage values and fan speeds from the sensor chips of your motherboard. Before running sensors you have to run sensors-detect as root to initialize them. It will autodetect your hardware and define which kernel modules you need to get it working properly, and tell you how to autoload them during boot.

So if you want to use lmsensors try to run

sensors-detect

and say YES at end of sensors-detect to write /etc/sysconfig/lm_sensors.