# Threadripper Workstation: GPU fan control

Good day,

I am trying to set the 4x A4000 GPU fans to 95% for a task. I have attempted to do this in the Nvidia X Server Settings (and via CLI as well). I keep getting a “failed to set new fan speed”. Is there a Lambda recommended way to set the GPU fan speeds to a constant percentage? Thank you in advance!

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PS. I’ve already reviewed and tried the options on this page: [Workstation fan control - Technical Help - DeepTalk - Deep Learning Community](https://deeptalk.lambda.ai/t/workstation-fan-control/2999/3)

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## Reply from markd on Sep 28, 2022

The other document was for the motherboard/Chassis fans.

(Each motherboard/BIOS is a bit different)

The NVIDIA “CLI” requires desktop software installed also.

To set to Adaptive:

```bash
sudo nvidia-xconfig --enable-all-gpus
sudo nvidia-xconfig --cool-bits=4
sudo nvidia-settings -a GPUPowerMizerMode=0
sudo rm /etc/X11/xorg.conf
```

To set to Max performance:

```bash
sudo nvidia-xconfig --enable-all-gpus
sudo nvidia-xconfig --cool-bits=4
sudo nvidia-settings -a GPUPowerMizerMode=2
sudo rm /etc/X11/xorg.conf
```

If your GUI fails to come up you may need to login and remove the xorg.conf:

```bash
sudo rm /etc/X11/xorg.conf
```