SpeedFan is a freeware program that monitors fan speeds and temperatures in computers with a known monitoring chip. Its main feature is that it can control the speed of the fans according to the temperatures inside your pc, thus reducing noise and power consumption. Currently the only recognized (and useful) chips are WINBOND W83782D, which is found in ABIT BP6, and WINBOND W83627HF. If you've got any other motherboard with the same chip, this program is for you What's New

fan speeds can now be changed by hand in the main window
fixed initialization of the ADM1025 on some motherboards
added full support for VIA8233A SMBus
added support for new revision of the AS99127F
moved INI to the registry so that restricted users can use it under NT/2K/XP
fixed W83L784R voltage readings
properly detected W83L784R
added support for the latest revision of AS99127F
preliminary detection for W83L785R
full support for MAX6657 and MAX6659
trying to avoid duplicated detection of the W83627HF on TYANs

fixed an error that caused the PERFORMANCE indicator for S.M.A.R.T. drives to return too high a value if nothing was wrong (this error is mostly cosmetic and nobody could see it, as it was rounded to 100% even if it was, internally, reporting 10000% :-))

added full support for ALi M1535D/D+ fan control
added support for FDC37N972
minor fixes to DELL support
removed the third FAN DIVISOR setting in ADVANCED CONFIGURATION for W83697HF
added full support for AMD768

Download SpeedFan 4.04