Help with cool bits setting on ubuntu 20.04

[generic-username123432]

Hello everyone

I've gotten into Ethereum mining recently and I want to under clock my gpu. I'm trying to do this with Greenwithenvy, however in order to unlock the under/overclocking functionality I need to change the cool bits setting.
I tried to do it with this command

sudo nvidia-xconfig --cool-bits=12

and that generated xorg.conf, however upon restart I was unable to boot and I had to delete this file in recovery mode

Then I found this

https://www.reddit.com/r/pop_os/comments/ca57ns/what_is_the_replacement_for_xorgconf_want_to_set/

With instructions that seemed like they would solve my problem however upon restart I was again unable to reboot.

Does anyone have a solution to this? It seems like when I generate the necessary configuration files I am unable to boot.

Thank for any help you can give me

[CatKiller]

Create a file such as /etc/X11/xorg.conf.d/20-nvidia.conf

Inside, put something like

Section "Device"
        Identifier      "Default Device"
        Option          "CoolBits"      "12"
EndSection

Restart X (or your computer).

[generic-username123432]

I did try doing that but it unfortunately did not work. That was the method I followed in the reddit instructions.