Re: HOW TO SET UP OVERCLOCKING AND FAN CONTROL ON UBUNTU 16.04 FOR NVIDIA CARDS
No it doesn't matter with 2 cards. Works perfectly in Windows. Just can't OC in Linux.
A couple of options:
a) try Ubuntu 17.04LTS - it has an updated kernel that may be better with your CPU and motherboard.
b) try Nvidia' newer drivers
sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt update.
Then go to additional drivers - an every Nvidia Ubuntu driver release up to the recent 384.59 will be available for install.
Sometimes, you'll need to click open Ubuntu Software and update X Server control panel for that driver.
Remember, after switching drivers and rebooting you will need to re-enter:
sudo nvidia-xconfig -a --cool-bits=28 --allow-empty-initial-configuration
I tried but still the same problem
Not a lot can be done - especially, as you won't try using Gen 2 or Gen 1!
I noticed that oc works on a card with monitor plugged in but this not a solution for mining.
The following command is meant to allow you to allow overclocking on the additional GPUs without a dummy monitor plug.
sudo nvidia-xconfig -a --cool-bits=28 --allow-empty-initial-configuration
Sometimes, non-reference engineering on a motherboard can prevent Ubuntu from installing or commands from working - some motherboard manufacturers don't give the non-reference engineering design to Ubuntu for inclusion in a Kernel revision.
However, you can buy an HDMI dummy monitor plug from Amazon or eBay for $8.39. But, if you are willing to wait for a bit, you can get one shipped from a Chinese seller on eBay for cheaper. That will get overclocking working on the 2nd GPU.