This takes a few seconds, after which you are taken to the main program window. When you open the Speedfan program after installation, you will notice that the application scans for supported sensors and devices automatically. Speedfan also reports voltages such as Vcore, 12v and 3.3V. 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. 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. The noise is generated by the rotation of fans, and if you slow them down, it will be lowered automatically as a consequence. You can reduce the fan speed using the program to lower the noise generation on your system.

This can be very useful if the fans are noisy on your system and distract you from work or entertainment. 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. 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.