Hello,
I am powering a mobo (Asrock H110 Pro BTC+) with a 1200w power supply. The board is hosting 10 GTX 1060 6gb. In 1bash I limit the consumption to 80W per card.
Whenever I add an 11th card, the system becomes very unstable, rebooting after few minutes Ethminer is running.

I tried to swap cards, risers and slots without finding a solution.
I believe it's a power problem, nevertheless the 11 cards system absorb a total of 910w, that is still within the limits of the power supply.
Any ideas on how I can diagnose the problem?