|Author:||Alfredo Milani Comparetti|
|Developer:||Alfredo Milani Comparetti|
|Programming Language:||Delphi, C++, C|
|Operating System:||Windows 95 and later|
|Genre:||System hardware monitor|
SpeedFan is a software used to detect the temperature of computer components and detect and change computer fan speeds. It also has a feature which changes the fan speed depending on the temperature of various components.
SpeedFan also monitors system voltages and S.M.A.R.T. readings for EIDE, SATA and SCSI hard disks. Starting with version 4.35, SpeedFan fully supports Areca RAID controllers. The program can display system variables as a chart and as an indicator in the system tray. 
Fully configurable user events can be defined to execute specific actions based on system status. As of version 4.37, temperatures in the event section must be specified in 'C no matter if the display setting is for 'F.
SpeedFan offers a feature named "in-depth online analysis" that compares your hard disk S.M.A.R.T. data to a comprehensive database with statistical models of every known hard disk, allowing early detection of degradated hard disks. Full text messages inform the user of specific situations, as if a human expert had a look at the data.