An essential free tool for people that like to tweak their PC's, it can monitor temperatures and voltages and adjust the speed of the fans in your rig, enabling you to have a quieter PC under low load.

It can also be used as a plug-in for other applications such as ATI tray tools and windows 7 gadgets.

Speedfan as a plug-in for the All CPU monitor gadget, showing the CPU core temps on the desktop.




Speedfan has a nice way off sitting in the system tray.




Speedfan as a plug-in to ATI tray tools, bottom of the image, displaying the core temperatures, top line, while playing the game Juiced 2.




More info and download:
http://www.almico.com/speedfan.php