1.9 KiB
NVidia GPU
Ingredients
- Nvidia drivers for your GPU
- Some form of X11 GUI preconfigured on your linux host (yes, it's a PITA, but it's necessary for overclocking)
Preparation
Install kernel-devel and gcc
The nVidia drivers will need the kernel development packages for your OS installed, as well as gcc. Run the following (for CentOS - there will be an Ubuntu equivalent):
yum install kernel-devel-$(uname -r) gcc
Remove nouveau
Your host probably already includes nouveau, free/libre drivers for Nvidia graphics card. These won't cut it for mining, so blacklist them to avoid conflict with the dirty, proprietary Nvidia drivers:
echo 'blacklist nouveau' >> /etc/modprobe.d/blacklist.conf
dracut /boot/initramfs-$(uname -r).img $(uname -r) --force
systemctl disable gdm
reboot
Install Nvidia drivers
Download and uncompress the Nvidia drivers, and execute the installation as root, with a command something like this:
bash NVIDIA-Linux-x86_64-352.30.run
Update your X11 config by running:
nvidia-xconfig
Enable GUID
systemctl enable gdm
ln -s '/usr/lib/systemd/system/gdm.service' '/etc/systemd/system/display-manager.service'
reboot
Overclock
!!! warning Like overclocking itself, this process is still a work in progress. YMMV.
Of course, you want to squeeze the optimal performance out of your GPU. This is where the X11 environment is required - to adjust GPU clock/memory settings, you need to use the nvidia-settings command, which (stupidly) requires an X11 display, even if you're just using the command line.
This command gives you a "fake" screen so that X11 will run, even on a headless machine managed by SSH only:
nvidia-xconfig -a --allow-empty-initial-configuration --cool-bits=28 --use-display-device="DFP-0" --connected-monitor="DFP-0"