Trying to set up my first rig with the Asus z270 series board, Ubuntu 16.04, and 7 1060's. Updated the bios, did all of the gen 2 switching ect yet still can't get more than 5 cards operating at once (It's random each time I reboot whether 4 or 5 seem to work). At first it was the cards with which I had individual sata riser power cables daisy chained (2 cards on each cable) but after unhooking everything and setting it back up that does not seem to be the issue. I have also tried swapping out risers in order to see if one had gone bad also with no luck, ditto with the graphics cards. I am kind of at a loss as what to try at this point in order to get all 7 operational at once.
Which Asus z270 board?
Sorry, Prime Asus z270-A.
We have the same board, if you see above that is my exact setup including which PCI lanes I am using along with a video with step by step instructions.
Checked out that video earlier and made all of the bios changes (on 2 separate boards just in case one was failing) still the same issues. Kind of at a loss.
Have you changed your PCI lanes you are using? And have your monitor output to the closest x16 to your CPU?
I switched the PCI-Lanes to 2.0, and I actually forgot I had taken my monitor out of GPU1 and hooked it directly the Motherboard earlier .... but when I put it back on GPU1 and rebooted that Card stopped working and I still only have 5 GPU's running. GPU 5 which was not working on my previous boot started working this time in it's place.