[Guide] How to control fans on Dell Laptops under Windows

Has anyone tried this program with a dell 7559?

 

I hope to mess around with this on my Dell Inspiron 7577 laptop soon as well. I really wish I had more programming experience and knowledge under my belt to be able to play with stuff like this!

 

Why it doesnt show rpm of fans? Dell Inspirion 7567

 

@bartold3ak You have to open the utity with administrator privileges.

It does indeed work on my Dell 7567 with i5 and gtx 1050. Thank you so much for your effort @valuxin ! Few things i've noticed:

- every step from the guide requires administrator privileges
- disable secure boot before trying to enable testsigning
- you can only set 3 modes with the sliders in config - 0rmp, 2.5k rpm and 5k rpm. However...
- it is possible to adjust the fan speed more precisely with debug->pwm slider. It works only for the GPU fan for some reason, unfortunately. And it works in kinda unstable way - the fan speed seems to fluctuate.
- i am too afraid to check the "dc refresh" and "test" buttons because they look scary and enigmatic

In conclussion - Dell is damn lazy and they set only 3 cooling profiles. 5k rpm is too much for gaming, 2.5k rpm seems a bit too little (i've achieved 80 degrees on both cpu and gpu during not-that demanding benchmark, but i'd probably test it further). 3,75k would be perfect, but it seems unachievable. Even if the pwm slider would work for both fans, it seems too risky(and annoying) to keep fans fluctuating like this on the long run.

 

Props for confirming these details and sharing with the community.

I thought I remembered reading somewhere that once the manual fan control has been turned on and is overriding the stock hardware control, that despite the Dell Fan Utility being wonky, and not quite working correctly, that you could actually go into a different hardware-controlling utility such as Speed Fan (or possibly even Afterburner's Fan Control?) and get more precise control from their interfaces. Have you tried messing with either of those?

Also, it sounds like dc refresh may just be a way to update the DC frequency being pushed to the fans more often so it wins the fight vs what the stock factory-embedded-signal hardware control is trying to feed the fans. I'm not sure how to better explain it, but it makes sense to me on an electrical engineering sort of level.

 

@Razzim @Maleko48 Some games require to not be in testing mode. Is there a way to enable this fan control without test mode. When not in test mode it says that unsigned drivers cant be installed.

 

I'm still waiting on my 7577 replacement unfortunately. There might be a command line equivalent that will allow the installation of unsigned drivers while the laptop itself is not in "test mode" but I am new to Windows 10 and hating it aside from dealing with my brand new laptop replacement nightmare. I thought I encountered a similar issue when trying to toggle a setting in PowerShell (for a completely different reason) on my original machine when I briefly had it. The rebuttal power shell have me actually had a link in it to a Microsoft website that gave more info and command line options to work with and I was able to get Windows 10 to do what I needed. I would suggest trying to do some searching both on Google and on the forums here in the meantime.

LINKS:

http://maxedtech.com/about-testmode/

 

@Maleko48 Uhh, it was kinda late and i've made some mistakes in my post. It is not possible to control fans by Dell Fan Utility (except pwm). There are only 3 steps of the slider, but they are not working. I've used the utility only to disable EC, then adjusted fan speeds by SpeedFan. 0-30% margin is 0rpm, then between 30-70% its 2.5k, and 5k above 70%. A little bit wonky. HWInfo64 was more precise - there also were only 3-step sliders. Im gonna test the MSI Afterburner again with an administrator privileges (without them Fan settings were grayed out) later (just reinstalled Win10, need to configure it again).

 

Thanks A LOT for this, the fan behaviour on my Dell 7577 was driving me crazy to the point I considered getting rid of it, it works very well with HWinfo64 to control the fans (I tried Speedfan but had troubled with it)

Now the only thing that could make it better is an option to disable EC control automatically on start but it's already a huge improvement to be able to tame the fans, thanks again

 

Hi, thanks for your work. I have a question:
Is it possible to restore fan control? Is fan control revert back (contorlling itself by pc) when user close app?