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 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 a 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.

Changelog:
This beta includes a huge amount of new code and of code rewritings. It fixes the crash on some DFI motherboards and properly identifies one revision of the IT8705F chip. There is a lot of code to improve nVidia support. Intel CORE temperatures should now properly work on all systems. Added support for the SMBus available on several new SouthBridges. Added support for new chips. Added preliminary CPU identification routines needed to better support new hardware. Beta 19 improves CPU identification routines. Beta 21 improves identification and should detect DDR3. Beta 23 fixes a bug in charting, improves CPU identification, adds support for EMCT03 and, by popular demand, sets Tjmax=100C for Intel Core Stepping L2. Beta 28 greatly improves Intel CPU identification, supports more hardware (like the W83793G), fixes a bug with charts and adds, in CONFIGURE / ADVANCED, a new setting to see Intel Core temperatures in a RELATIVE or ABSOLUTE way. Beta 29 refines several things and improves CPU identification. Beta 30 improves CPU identification. Beta 31 improves identification and adds support for DTS readings on all Intel CPUs that support it. In order to run this beta, simply install SpeedFan 4.33, then replace the EXE and then run SpeedFan as usual. Please, use the SEND REPORT facility on the INFO tab to help me to evaluate the improvements I coded.

Program Information Category: Tools and Utilities Type: Free Version: 4.34 beta 31 Size: Works on: Windows Product page: here