Download Editors' Rating:
Average User Rating:
out of 356 votes

Quick Specs

  • Version:
  • Total Downloads:
  • Date Added:
    August 19, 2014
  • File Size:
  • Downloads Last Week:
  • Operating Systems:
    Windows 98/Me/NT/2000/XP/2003/Vista/Server 2008/7/8

Editors' Review


SpeedFan helps you stay on top of your system's vital statistics, including temperature, fan speed, and others, to ensure that things are running smoothly. Aside from basic monitoring, this program enables users to troubleshoot issues and make adjustments to various systems.


Clear interface: This app's interface is nicely organized into sections that you can move through using the tabs across the top of the screen. Options here include Readings, which features stats about CPU Usage, Fans, Temperatures, and more, Clocks, which lets you reset your Motherboard clocks, and SMART Data.

Charts section: There is also a section that lets you create charts to visualize data recorded about various aspects of your computer. You can choose to see readouts of Temperatures, Fan Speeds, and Voltages to get a better idea of the way these values are trending over time so you can quickly identify when something is going wrong.


Not for beginners: Most of the information this program presents will have little meaning to inexperienced users. There are good warnings about taking actions that could potentially harm your computer if you don't know what you're doing, so you're not likely to do any harm. But it won't do you much good either.

Bottom Line

SpeedFan is a nice, free utility to help you monitor various aspects of your system. It presents all data clearly, and you can find what you're looking for quickly, thanks to the conveniently tabbed interface. It's not much use if you don't have some significant knowledge about your computer's inner workings. But for power users, it's a good tool.

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Publisher's Description

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User Reviews
  • Current Version


    out of 3 votes

    • 5 star 1
    • 4 star 1
    • 3 star 0
    • 2 star 0
    • 1 star 1
  • All Versions


    out of 356 votes

    • 5 star 114
    • 4 star 114
    • 3 star 51
    • 2 star 24
    • 1 star 53
  • My rating

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Results 1-3 of 3

  • 4 stars

    "Good program"

    October 07, 2014   |   By ajpctech

    Version: SpeedFan 4.50


    Helps to know all your fans' speed to see if they are over working and getting too hot especially when overclocking.


    It could load malware if not careful and decline all the optional requests. It's better to get it from filehippo.com

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  • 1 stars

    "This is a F?cken Virus DON"T DOWNLOAD!!!"

    September 17, 2014   |   By rcmmulti

    Version: SpeedFan 4.50


    NONE!!!!!!!!!!!!!!!!!! Dangerous




    Why Doesn't C-net get rid of crap like this!DangerousDangerousDangerousDangerousDangerousDangerousDangerousDangerousDangerous

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  • 5 stars

    "Resolved my overheating problem, no malware found."

    August 19, 2014   |   By greenLibertarian

    Version: SpeedFan 4.50


    This program helped me identify the reason my computer was overheating: the fan speed was not increasing as temperatures increased.
    The monitoring is very useful. I have not tried the advanced features, no need.

    I scanned my computer with multiple malware/spyware programs after reading some of the reviews, and found none.


    Would prefer to pay after trial period to the several revenue install options.

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  • Results 1-3 of 3

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    Full Specifications

    What's new in version 4.50
    • 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
    Publisher Almico Software
    Publisher web site http://www.almico.com
    Release Date August 19, 2014
    Date Added August 19, 2014
    Version 4.50
    Category Utilities & Operating Systems
    Subcategory System Utilities
    Operating Systems
    Operating Systems Windows Server 2008, Windows NT, Windows Me, Windows 8, Windows 7, Windows XP, Windows, Windows Vista, Windows 2003, Windows 98, Windows 2000
    Additional Requirements
    Download Information
    File Size 2.07MB
    File Name instsf450.exe
    Total Downloads 3,129,902
    Downloads Last Week 7,439
    License Model Free
    Limitations Not available
    Price Free

    Previous Versions:

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