SpeedFan - handle fan speeds,voltages and much more

SpeedFan is a freeware program that monitors voltages, fan speeds and temperatures in computers with hardware monitor chips. SpeedFan can even access S.M.A.R.T. info for those hard disks that support this feature and show hard disk temperatures too, if supported. SpeedFan supports SCSI disks too. SpeedFan can even change the FSB on some hardware (but this should be considered a bonus feature). At the lowest level, SpeedFan is an hardware monitor software that can access digital temperature sensors, but its main feature is that it can change fan speeds (depending on the capabilities of your sensor chip and your hardware) according to the temperatures inside your pc, thus reducing noise.

The long awaited SpeedFan 4.32 FINAL is now online. This version includes a lot of new features. Full support for INTEL CORE DUO internal temperatures, for Andigilog aSC7621 and for Fintek F71882F has been added, including advanced configuration options. Another great new addition is xAP support, which allows you to publish temperatures and fan speeds using this pretty new and interesting protocol. Not to mention the digitally signed 64 bit driver that allows SpeedFan to fully support even Windows Vista 64 bit.

Changes:

- added a digitally signed 64 bit driver (fully tested under Vista 64 bit)
- added full support for INTEL CORE DUO internal temperature readings
- added full support for Andigilog aSC7621
- added full support for Fintek F71882F
- added xAP support to publish temperatures and fan speeds
- improved support for Fintek F71782F
- improved support for IT8716F
- renamed temperatures readings for MAX6640
- improved compatibility with Intel D975XBX2
- reduced AD7416 and AD7417 false detections
- reduced MAX6650/6651 false detections
- improved Intel SMBus routines

Link: SpeedFan Home Page