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SpeedFan 4.50

SpeedFan is a program that monitors voltages, fan speeds and temperatures.



SpeedFan 4.50 facilities

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Alfredo Milani Comparetti webshot
OSWindows 98, Windows 2000, Windows XP, Windows Vista, 64-bit (x86_64)
Limitationsnot specified
Actualizedmore than year ago
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SpeedFan manufacturer description

SpeedFan 4.50 is a program that monitors voltages, fan speeds and temperatures in computers with hardware monitor chips. SpeedFan Resources monitoring can even access S.M.A.R.T. info for those hard disks that support this feature and show hard disk temperatures too, if supported. SpeedFan supports SCSI disks too. SpeedFan can even change the FSB
on some hardware (but this should be considered a bonus feature). At the lowest level, SpeedFan is a hardware monitor software that can access digital temperature sensors, but its main feature is that it can change fan speeds (depending on the capabilities of your sensor chip and your hardware) according to the temperatures inside your pc, thus reducing noise. Several sensors, like Winbond's and the AS99127F support fan speed changing, as well as others from Maxim, Myson, Analog Devices, National Semiconductor and ITE, but the hardware manufacturer must have connected the relevant pins to some additional, yet trivial, circuitry. This means that if you have, say, a Winbond W83782D on a BP6 then you're ok, but not every motherboard with such a hardware monitor chip will be able to change fan speeds. From one of the very first hardware monitor chips that could be found in standard PCs, the National Semiconductor LM75 (and all of its clones, like the Philips NE1617 and the Philips NE1618 or the Maxim MAX1617) or the Analog Devices ADM1021, such chips have been greatly improved, both in their precision and in their capabilities. Current chips can monitor fan speeds, voltages and change fan speeds by using PWMs (Pulse Width Modulation). Some chips can even be programmed to vary fan speeds without any additional software intervention. If your BIOS was programmed to setup such chips this way you can still try to use SpeedFan's Advanced Configuration to revert to manual (software controlled) mode. Winbond W83697HF, Analog Devices ADT7463, SMSC EMC6D102, ITE IT8712F, National LM85C and Maxim MAX6650 are very good candidates. Some SuperIO chips include temperature sensors too. SpeedFan can automatically detect them and use their features. SpeedFan can find almost any hardware monitor chip connected to the 2-wire SMBus (System Management Bus, a subset of the I2C BUS) Serial Interface and to the ISA BUS and works fine with Windows 9x, ME, NT, 2000, 2003 and Windows XP. It works with Windows 64 bit too. It can be minimized to the tray and is compatible with Motherboard Monitor 5.
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Free download SpeedFan 4.50
Free softwareFREE SOFTWARE

Freeware is computer software that is available for use at no cost or for an optional fee.


SpeedFan video tutorials

Tutorial ID : 8890

My Video Card Is Fucked! What's Up With It?

SpeedFan categories

national semiconductors, 2-wire, analog, LM75, pwm, voltages, winbond, fan, system management bus, rpm, speedfan, analog devices, hardware monitor, hard disk, smbus, computer, digital, maxim, i2c, digital sensor, smart

What is new in 4.50 changeinfo log

Added full support for Nuvoton NCT6791D (including fan control) - Improved external (USB) hard disk detection (some were not properly detected on Windows 8) - Added a new method to access hard disks connected to 3ware RAID controllers (works on 64 bit systems too) - Added support for Intel core temperature (Family 06h Model 3Ch) - Added support for Intel core temperature (Family 06h Model 3Eh) - Added support for AMD Family 15h temperature - Added support for AMD Family 16h temperature - Added support for Intel 8 Series SMBus - Added support for Intel 8 Series Mobile SMBus - Added support for Intel 9 Series SMBus - Added Nuvoton NCT6779D/NCT6791D advanced option to choose between PWM and DC output for System Fan (PWM 1) - Changed the way NCT6779D and NCT6791D read fan speeds - Added 4 more temperature readings to NCT6779D - Added Fintek F71808A advanced setting: PWM TYPE 3 - Refined Fintek F71808A description for PWM MODEs - Added preliminary support for ITE IT8620E temperatures and fan speeds - Fixed a minor typo that caused Fintek F71808A to not show some temperatures properly

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Clean award guarantees that SpeedFan was tested by antivirus program and is absolutely clean, which means it does not contain any form of malware, including computer viruses, adware, trojans, spyware, rootkits, badware and other malicious and unwanted software.
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