Finally i finished build my new rig 12x1080ti zotac blower,
3 psu x 1200w
Win10pro
Cpu -i5
16gb ram
240 gb m.2 ssd
Mb Asrock h110 pro btc+
Latest nvidia driver

Set pl 70
Core clock 70 (synchronized with msi afterburner), yes it’s support 12gpus)
Mc -0

I got 48mhs on zfastminer,
And on graph it’s showing over 70mhs...
Rig of 12 gpus, working great, fantastic speed !!!
I newer though that windows can handle more than 8 gpus, but it’s working excellent for me,
I have other 6x8x1080ti, i will add to them more gpus in near future,
One more time i want say,
many thank’s !!!