Speedfan has been released in a new version yesterday which added support for many new features and technologies that previous versions did not support. This includes full Vista 64-bit support among other things.
The basic functionality that it makes available can be described in the following way: Speedfan monitors temperature levels of core system units such as processor and hard drives, and displays notifications to you when they reach critical levels.
What makes it special for me is that you can control some or even all of the fans installed on your system provided that you have a supported motherboard, video card or power supply unit. This can be very useful if the fans are noisy on your system and distract you from work or entertainment.
You can reduce the fan speed using the program to lower the noise generation on your system. The noise is generated by the rotation of fans, and if you slow them down, it will be lowered automatically as a consequence.
The temperature levels may rise if you reduce the speed of fans too much but it is relatively easy to find a level that lowers the noise and keeps the temperatures at a non-critical level.
I'm mainly using Speedfan to lower the noise the fans make but it can also be used to monitor temperatures and find out detailed information about your hard drives provided they support S.M.A.R.T. Speedfan also reports voltages such as Vcore, 12v and 3.3V.
When you open the Speedfan program after installation, you will notice that the application scans for supported sensors and devices automatically. This takes a few seconds, after which you are taken to the main program window.
Here you see the fan speed and temperature levels of all devices that have been recognized by the program. This usually includes the temperature of the cpu and gpu, and maybe even that of hard drives and other components.
You can now decrease the fan speed of compatible fans with a click on the down button next to the fan in the main interface. You may need to try a few before you find the one that is turning down the fan speed of the device that you want to control.
You can alternatively purchase hardware controls that allow you to control the speed of the fan, for instance adapters for fans that run them on a lower voltage level.
Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.