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.
This is a very interesting release. It
adds full support for a lot of new hardware. AMCC/3WARE users will be happy to
see SMART data for all of their EIDE/SATA hard disks. Full Intel QST support has
been added too (you need to RUN AS ADMIN on some OS). Support for new SMBuses
(like nVidia MCP79 and SiS968) is there. New chips (like the ADT7470 and the
ADT7462) have been added and support has been improved for some others. ITE
IT8720 identification has been greatly improved. DELL support is now tested on
more chipsets. Windows 7 32 and 64 bit has been added and verified. Both the
installer and the executable are now digitally signed. A lot of refinements,
improvements and bug fixes were applied.
Note:
If you have problems downloading SpeedFan 4.38,
please try to stop using your download manager
and avoid right clicking on files. Also, check
your firewall settings, because some mirrors may
require that you do not block the HTTP
referrers. 
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