The only exception are new Alienware models that might be added, but only in case it's deemed feasible. So please, if fan control on your machine is not supported by HWiNFO do not ask for support - it will not be answered. The problem happens when you reach the bottom of the fan curve. Some systems have more granular fan control while the EC is in charge, but you cannot change the behavior other than picking a thermal profile in Dell Power Manager. With one-way hysteresis enabled, the fan controller only drops the fan speed when the hysteresis threshold is reached. Optionally, you can check the remember it box. Also the huge amount of different fan control imlpementations (EC firmwares) and no universal methods possible make it even more difficult.Īlso please note that using the Embedded Controller interface (to monitor and control fans) can cause problems on some machines. Note that without the EC controlling the fans, only three fan levels are available, which I will call '0', '50', and '100'. On each of the PWM entries, change from SmartGuardian to Software controlled to let SpeedFan take over control. In most cases it's very difficult to determine how to control fans on such machines and sometimes it might not be possible at all. The main reason for such limited fan control support is that almost all notebooks use proprietary methods (closed Embedded Controller firmware), that are kept secret by manufacturers. There are currently no plans to extend fan control support to other machines. Only very few specific HP models (8530w, 8740w) featuring SMSC EMC2103/EMC2113 controllers, some older ENVY 15/17) Some DELL machines might have problems using fan control DELL - many models supported, but fan control limited to 3 levels only. Alienware - all current models should be supported, but there are limitations based on model and fan control mode (EC support disabled/enabled) Fan Control is not an official HWiNFO feature and there are currently only very few specific machines supported:

Controlling fan with hwinfo