You sometimes need to set the coolbits value to overclock your GPU on Linux
You’ll need to install nvidia-xconfig
sudo dnf install nvidia-xconfig
Then you can set the cool bits value with the following command. Change 24 to the appropriate cool bits value. Refer to the link below.
sudo nvidia-xconfig --cool-bits=28
It’ll create a new xorg config file. Reboot to take advantage of cool bits being enabled.