DellFanCmd – Tool to enable manual/custom control of the laptop fans

I discover that there is "fan management" in core 2 duo series and more recent/older, I know that on my E4200, if I do FN + SHIFT + 15324 - SHIFT + R (might be CTRL instead of SHIFT), I'm redirected on a screen where I can manually set the rpm of my fan

 

I ran into directions for this pretty early on after I got my M6700 and I was bummed when it did not work in that system...

 

Thank you so much for this tool, my i7 2670QM of my M6600 kept thottling a bit during this summer time. It slowed down games to the point it was unplayable.
Surprisingly i did not had to reboot the system after doing the registry change.

I knew the fans weren't spinning fast enough, during heavy game sessions it wasn't noisy at all.
At 100% it still isn't annoyingly loud, but they're audible of course.

I'm impressed how the FirePro M6100 wasn't throttling at all at 91c, then again i don't know at which point it will as it used be around 73-77c before the summer.

 

Dell 7577 here... Recently cleaned my fans completely during a re-paste and even bent and modified my heatpipes / heatsink assembly a bit for optimal contact with the CPU/GPU. Now while idling at desktop and doing school/coding tasks, my machine rarely breaks mid-50's for both CPU and GPU temps as reported by ThrottleStop. Since my repaste and heatsink optimization, my CPU/GPU temps stay locked together nearly identically except during CPU bursts which is to be expected. I increased both the CPU contact pressure as well as the GPU contact pressure and evened out the pressure to be more even across the CPU die... well worth the effort imo.

I essentially have my clock speeds setup as a desktop with a solid undervolt and desktop-like Windows power plan settings. My machine stays at 0 EPP setting in TS on all profiles and idles at 3.4 - 3.8 GHz always. That said, pushing 3 monitors (4k, 100% scale, 1080p 100% scale, 1600x900 100% scale) with my GTX1060 being my preferred video driver for all tasks, my machine only consumes about 5-12 watts the majority of the time (averaging 7-9 watts) while on my desktop browsing and working on schoolwork.

I think I am finally going to take the time to set this up as I am tired of hearing both of my fans spin at 3600 RPMs while my temps are only 52-55C all the time which seems ridiculous to me. Current BIOS is 1.6.1 with no intention to update... will post back in a bit.

 

hi
i have an old vostro 3300 laptop
and the fan always running at max speed ( thermals are good )
so i tried dellfancmd
problem is speed 0 and 1 and 2 are all same
i tried the test command and it also reports that speed 0 and 1 and 2 are 4800rpm all
is there any solution?
tnx

 

I think this system is too old...
I've only confirmed this method working on Intel 2nd generation systems (Sandy Bridge) and up.

 

ok tnx
yes its i5 560
but runs the win 10 very good
i use it for simple stuff...
only annoying part is the fan noise

 

I'm not the smartest when it comes to non-GUI programs so I have run into some trouble on a Dell Precision 7760
I downloaded the DellFanCmd program, edited the registry, and installed Visual C++ 2019 redistributable.
When I click on the DellFanCmd exe. that I donwloaded from GitHub, nothing happens.
Do I need to start the program/change settings from the command line?
Any help is appreciated

 

DellFanCmd is exclusively a command-line application. Nothing is supposed to happen when you click on it. You're supposed to interact with it from the command line.
If you're not that familiar with the command line, you'd probably be more interested in checking out "Dell Fan Management", a newer GUI app that I am working on. See: http://forum.notebookreview.com/thr...d-in-dell-laptops.833340/page-8#post-11104029

 

Thank you @Aaron44126 very much.

Bought dell XPS 9500 brand new and fans would not stop spinning. No load, temps 45C, still spinning at 100%, and they would never ever stop.
Been to the certified service shop, changed motherboard and fans under warranty, still the same.
Also had the power throttling issues, but that has been kinda sorted with intel XTU, but not as I would have hoped. CPU will not be at 100% for more than a couple of dozens of seconds. "Old" dell XPS 9560 that I had could be there all day literally - not what this thread is discussing.

But please, I don't see anywhere the donation button.
Would you accept the small token of appreciation and if so, could you refer me to the link where I can do so.

 

See PM.

 

I also have some insight about power limit throttling if you are interested in it.
It seems to me that newer Dells are somewhat affected by it, and if you have access to applying (Intel XTU) profiles with code, it can be easily sorted out
I think I saw somewhere that you can for example apply a power management profile (as you would do inside Dell Power Manager app).

 

CPU power limit throttling can be handled with ThrottleStop. See: http://forum.notebookreview.com/thr...60-owners-thread.836381/page-76#post-11114127
(This discussion is probably better for a different thread; handling throttling issues is beyond the scope of my tools.)

 

Agree.

Thanks for the info. I came across that tool a while back, but I gave up quickly as it seemed too complicated for a novice user like me. Will definitely investigate it in more detail.

 

Hi, so I've been using this tool for a few months now and its worked great! Thank you so much for developing this, truly a lifesaver!
I've noticed that the RPM readouts / speeds are not very consistent. For example, both my fans will hover around 4800, even when sometimes on high they can go about 5000RPM +. Sometimes they peak at 5700RPM initially, but then slow down to around 5000-5300RPM. I notice this behavior in manual mode, for example if I go from off to high, it'll hit the higher RPM and then slow down, or it will hit 5000RPM and decline into the 4800 range. I'm using an Inspiron 7590 if that matters.

Is this just the readouts being sketchy and are my fans actually spinning at their full speed? Or is it something else? Thanks!!

 

Well, I have also noticed on my M6700 that the fans run a bit higher for a few seconds and then slow down, if they are starting from "off". In all of the systems that I have tried, I haven't had cause to believe that the RPM reporting is wrong. (Also, I'd think one could hear the difference between 5700 RPM and 4800 RPM... If it sounds the same to you then maybe there is a reporting issue. Wouldn't be anything I could do about that, though.)

As has been reported earlier in the thread, setting the fans to "high" does not actually cause them to run at maximum speed. It's just the maximum speed that can be manually set. You can get a slightly higher speed on automatic EC control with a high load on the CPU.

 

There is certainly a change in RPM speed, it noticeably ramps down in sound after it hits the higher RPM's like 5700 initially. It's not a big issue since I mainly your application for quiet operation at medium speeds at school.

Interesting. Is there a reason that manual fan control doesn't allow maximum fan speeds? Or is it just Dell being Dell? Thanks for the information

 

I have a Dell Precision R5500 and have been having fan issues. Doesn't change fan speed when the fans get hot anymore. I tested the dellfancmd.exe and have been able to disable ec and also set fan speeds but only for the two fans set in the app. My system has Fan1 - Fan6. Is there any way to use this tool to access those other fans?

 

The tool is designed for laptops that have two fans max. However, the new GUI/beta version "Dell Fan Management" actually supports the same command line interface and can control up to seven fans. (GUI interface just supports two fans still.)

Some information - http://forum.notebookreview.com/thr...d-in-dell-laptops.833340/page-8#post-11104029
Current download link - https://1drv.ms/u/s!AsIwJHFk4EFdqIFyg4N3ia2vkaj0lg?e=ZzWtso

 

Hi, Aaron, This link to download not working, can you update please?