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

Yes I tried that but still it's no solution for me.

@Aaron44126 thx for the scripts. Unfortunately I didn't really get the logoff one to work, so I tried to do it with gpedit but how do you run those with admin rights?

 

The "logoff script" does not run with admin rights but the "shutdown script" does. (Go figure.)

 

Aaron44126 and maffle, congrats for the hard work!!!
I installed the beta hwinfo in my G7 7588, and it's fan control function is working flawlessly.
It automatically starts at windows boot, and it continues to work even after suspension and restart.
I even force closed hwinfo to see if the system fan management regain control, and all worked fine.
Now I´m satisfied with my G7.
Thanks.

 

Thanks. I have heard that bios 1.9 has sorted out the fan problem with the g series laptops. This could mean that I don't have to control the fans manually anymore. How do I enable the system ec control?

 

Disabling EC fan control using methods described here does not survive a power cycle. Shut the laptop off and turn it on again.

 

I've done that. I don't think it's worked. Am I supposed to force shutdown the computer?

 

No. If you have fully powered off the system, and you haven't set up some automatic process to disable EC fan control at startup, then the EC is controlling the fans again. Check if you like, try to control the fans using SpeedFan and any adjustment that you make will either not work or be quickly reverted.

 

hi m4600 user here. am a bit confused.
the m4600.zip the 3 files in here i replace them in speedfan folder in Crogram files/speedfan.?
windows 10 here after the command bcdedit.exe -set TESTSIGNING ON now theres a message on the lower righthand side of screen.. thats should be like that always.?

so every power on of laptop i need to disable EC in fan utility.. then close app then open speed fan. ? its that all.? how do i know that you profile is the one working.?
thanks

 

I've got a Dell Latitude 5490, I've already set TESTSIGNING to on and have Windows 10 running in Test Mode.

The issue I've having is that whether I use Speedfan or HWInfo64 to control the fan, when the laptop goes into hibernate mode and comes back from it, the Dell Fan Utility referred to in the OP still has the "EC Control Disabled" button greyed out as if it's working, but it's not.

I have to exit and re-run the Dell Fan Utility and re-disable EC Control in order to be able to manually set the fan speed in Speedfan or HWInfo64 again. In other words, coming back from Hibernate sets the EC back on, but the Dell Fan Utility is not aware of it.

Looks like in the existing code on Github, dell_smm_io() and dell_smm_io_set_fan_lv() need to be re-run on coming back from Hibernate, or at least ui->pb_disable_ec_ctrl->setEnabled(true).

Code:

void MainWindow::on_pb_disable_ec_ctrl_clicked()
{
    if(msgbox->exec() == QMessageBox::Yes)
    {
        ui->gb_override_protect->setEnabled(false);
        ui->pb_disable_ec_ctrl->setEnabled(false);
        ui->pb_disable_ec_ctrl->setText("EC control disabled");

        //shutdonw ec control code here

        dell_smm_io(DELL_SMM_IO_DISABLE_FAN_CTL1,DELL_SMM_IO_NO_ARG);
        dell_smm_io_set_fan_lv(DELL_SMM_IO_FAN1,DELL_SMM_IO_FAN_LV1);

    }
}

Any workarounds without recompiling? I don't have a Qt environment set up on here yet, just VS2019 Community and Cygwin.

 

See my thread on DellFanCmd; I have instructions for a Task Scheduler job to disable the EC after resume from hibernate.
http://forum.notebookreview.com/thr...ual-custom-control-of-the-laptop-fans.827106/