[UPDATE] #1
I found a topic at Nvidia forums, relating the same issue I experience,
It's an old topic but the problem described is very similar, and the only solution was a Vbios update in order to use newer Nvidia drivers.
So I believe that Asus and Nvidia need to work together in this situation.
https://forums.geforce.com/default/topic/561961/geforce-drivers/nvidia-326-19-beta-driver-issue-gtx-...