1Introduction 2------------ 3 4Most mainboards have sensor chips to monitor system health (like temperatures, 5voltages, fans speed). They are often connected through an I2C bus, but some 6are also connected directly through the ISA bus. 7 8The kernel drivers make the data from the sensor chips available in the /sys 9virtual filesystem. Userspace tools are then used to display the measured 10values or configure the chips in a more friendly manner. 11 12Lm-sensors 13---------- 14 15Core set of utilities that will allow you to obtain health information, 16setup monitoring limits etc. You can get them on their homepage 17http://www.lm-sensors.org/ or as a package from your Linux distribution. 18 19If from website: 20Get lm-sensors from project web site. Please note, you need only userspace 21part, so compile with "make user" and install with "make user_install". 22 23General hints to get things working: 24 250) get lm-sensors userspace utils 261) compile all drivers in I2C and Hardware Monitoring sections as modules 27 in your kernel 282) run sensors-detect script, it will tell you what modules you need to load. 293) load them and run "sensors" command, you should see some results. 304) fix sensors.conf, labels, limits, fan divisors 315) if any more problems consult FAQ, or documentation 32 33Other utilities 34--------------- 35 36If you want some graphical indicators of system health look for applications 37like: gkrellm, ksensors, xsensors, wmtemp, wmsensors, wmgtemp, ksysguardd, 38hardware-monitor 39 40If you are server administrator you can try snmpd or mrtgutils. 41