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 can find almost any hardware monitor chip connected to the 2-wire SMBus (System Management Bus (trademark belonging to SMIF, Inc.), a subset of the I2C protocol) and works fine with Windows 9x, ME, NT, 2000, 2003, XP, Vista and Windows 7. It works with Windows 64 bit too.

Changelog:
This beta uses a completely new driver. It properly updates ACPI temperatures on all systems (including laptops), accesses Nuvoton W83627DHG-P, no longer reads SMART Error Log Reporting data on program start (thus reducing incompatibilities), fixes Fintek F71858 support at unusual addresses and requires administrative privileges on program start. Too many features nowadays require privilege elevation thus I chose to make it mandatory. Bug fixes and improvements as always.

Program Information Category: Tools and Utilities Type: Free Version: 4.43 Beta 2 Size: 1.7MB Works on: Windows Product page: here