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

Discussion in 'Dell' started by Aaron44126, Jan 21, 2019.

  1. TheQuentincc

    TheQuentincc Notebook Evangelist

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    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 :)
     
  2. Aaron44126

    Aaron44126 Notebook Prophet

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    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... :p
     
  3. signex

    signex Notebook Consultant

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    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.
     
  4. Maleko48

    Maleko48 Notebook Deity

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    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.
     
  5. alireza_asol

    alireza_asol Newbie

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    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
     
  6. Aaron44126

    Aaron44126 Notebook Prophet

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

    alireza_asol Newbie

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    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
     
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