SpeedFan monitors fan speeds, temperatures and voltages in computers with hardware monitor chips. It 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. It can even change the FSB on some hardware. At the lowest level, it is a hardware monitor software, but its main feature is that it can control fan speeds according to the temperatures inside your pc, thus reducing noise and power consumption.

What´s New in version 4.45:

• added full support for ATI RADEON video cards (including CrossFire configurations and fan control)
• completely rewritten DELL support
• DELL support is now enabled on a wider range of models
• added full support for ITE IT8772F
• added support for Fintek F71889A
• added full support for SMSC EMC2103-1 and SMSC EMC2103-2
• added support for Fintek F71869AD
• added support for Fintek F71862 at unusual addresses
• preliminary support for SMSC SCH5317
• fixed Nuvoton W83627DHG-P PWM MODE advanced settings
• fixed ASUS ATK0110 readings on several motherboards
• fixed ATK0110 support on some Asus motherboards
• enabled SMBus on Intel ICH9M-E, if needed
• added full AMD Hudson-2 SMBus support
• TACPISonySensor support is now probed on all SONYs
• fixed multiple glitches and bug related to Advanced Fan Control UI
• in Advanced Fan Control dialog, control points can be fine tuned (+1,-1,+10,-10) using the right mouse button
• SMART Fitness synthetic value now is more stringent with some specific issues, reporting 0% in some cases that require immediate attention