SpeedFan is a program that monitors voltages, fan speeds and temperatures
in computers with hardware monitor chips. SpeedFan can even access S.M.A.R.T. info and show
hard disk temperatures. SpeedFan supports SCSI disks too.
SpeedFan can even change the FSB on some hardware (but this should be considered a bonus feature).
SpeedFan can access digital temperature sensors and can change fan speeds
accordingly, thus reducing noise.
SpeedFan works fine with Windows 9x, ME, NT, 2000, 2003, XP, Vista, Windows 7, 2008, Windows 8 and
Windows Server 2012. It works with Windows 64 bit too. 
Hover on the icons to read more about specific SpeedFan features.
Download
The latest version is SpeedFan 4.49.
http://www.almico.com/speedfan.php
http://www.me1matia.net/2013/05/speedfan-449-freeware.html
