SpeedFan 4.38 Free download

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 and Windows Vista. It works with Windows 64 bit too.

SpeedFan can handle:


almost any number of South Bridges
almost any number of hardware monitor chips
almost any number of hard disks
almost any number of temperature readings
almost any number of voltage readings
almost any number of fan speed readings
almost any number of PWMs

added full support for AMCC/3ware SMART readings
added full support for Intel QST
added full support for ADT7470
added full support for ADT7462
added full support for nVidia MCP79 SMBus
added full support for SiS968 SMBus
added full support for Intel i7 internal core temperature reading
improved ITE IT8720F identification
added Fintek F71858 temperature readings
PC87360, PC87362, PC87363, PC87364, PC87366 do hide unavailable readings now
ProbeGL5xxSM now checks some more registers to try to avoid false detections
improved CPU identification routines
improved FB-DIMM support on some Intel chipsets
the exotics tab now shows the fitness of the hard disks connected to ARECA RAID controllers too
ARECA and AMCC/3WARE connected hard disks are now searched before the standard channels, trying to avoid aliased, merged or fake reported SMART data
added identification of Fintek F75125R
removed two debug messages related to UGURU3
added some debug code to try to support VIA CX700/VX700 SMBus
DELL SUPPORT is now checked on ATI SBx00, Intel 631xESB, ICH8, ICH9 and ICH10 too
disabled DELL support on 64 bit systems
added /NODELLSCAN command line parameter
fixed daylight saving time handling in event emails
added full support for Windows 7 32 and 64 bit
fixed a minor bug that caused the main window to be minimized when clicked
CONFIGURATION / SPEEDS SpinBoxes now allow manual edit
added some scan exceptions for Asus M2N-E and for Dell 0G841G
INSTALLER: improved OS identification
INSTALLER: fixed the ADMIN identification issue

Other versions of Speed Fanto download:

Run a Free Performance SCAN to identify the issues slowing your PC

download SpeedFan 4.38