I'm currently looking for a stable rig/solution for 9 x 980ti. We currently have two amfeltec GPU clusters and have had 9 cards working on it, for a time. Of late we've had issues with it with failed PSU's, failed GPU, and also failed cluster boards.
We have a cooled server room and plenty of fans etc for cooling and we are prepared to spend on the rig in exchange for a stable system.
We're now keen to find out what solutions are available so I'd love to see what rigs you guys have, and to hear about performance, cooling and stability.
Thanks in advance

Simon