2 Titan X Pascal on Ubuntu 16.04?

Hi guys

I’m running a system with the following:
2 x Titan X Pascal
Asus Rampage V edition 10 motherboard
64GB DDDR4 Ram
Intel Core i7-5820K CPU @ 3.30GHz

I have installed:
Ubuntu 16.04
Nvidia drivers v375.2
CUDA 8.0

But when I run the Nvidia-smi I can only see 1 Titan X card - What can I do to fix this?


Here’s something you don’t see every day:

“…There is a switch in the lower-right corner that flicks the slots between 2/3-way CrossFireX/SLI configurations for easy setup, or, there’s dedicated hardware DIP switches in the top-right corner to on/off the individual PCI-Express 16x lanes…”

Jul 22, 2016
Rampage V Edition 10: What Goes Into the Ultimate Motherboard?

From the Asus motherboard GNU/Linux compatibility chart as of what appears to be Oct. 2016:

“Rampage V Edition 10, Fedora 23 Workstation, openSuse Leap 42.1, Red Hat Enterprise 7, Ubuntu N/A”

(Page 9)

I’m no GNU/Linux guru but aren’t the three above-mentioned supported OS’ RPM-based pro-oriented distros?

For a late model / bleeding edge motherboard like the Rampage V Edition 10 you might want to try Ubuntu 16.10 on a spare drive to see if '16.10’s newer kernel etc offers improved support.

Ubuntu 16.10 (Yakkety Yak)

If need be, nVidia 375.26 as well:

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update

Proprietary GPU Drivers : “Graphics Drivers Team” team

BTW, Mikkelu, does resume-from-suspend work correctly on your rig?