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This is an old version of this software. You can also download v4.51 (latest stable version).
or v4.34 Beta 34 (latest beta version).

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SpeedFan v4.33 Beta 18

Freeware
Win2k / Win95 / Win98 / WinME / WinNT / WinXP
SpeedFan is a freeware program that monitors voltages, fan speeds and temperatures in computers with hardware monitor chips. It can access S.M.A.R.T. info for those hard disks that support this feature and show hard disk temperatures too, if supported. SpeedFan can even change the FSB on some hardware.

At the lowest level, SpeedFan is an hardware monitor software that can access digital temperature sensors, but its main feature is that it can change fan speeds according to the temperatures inside your pc.

Screenshots:

SpeedFan v4.38

Keywords:
speedfan monitor monitors voltage voltages fan fan speed