x79s-up5-wifi - i7-4930k - nvidia gtx970

[giafrata]

UPDATE:
following this I've reached installer.
I'll let you know if the installation will be completed successfully.

 

[giafrata]

Now I've installed Sierra but boot stuck at:
[...]
ACPI: sleep states S3 S4 S5
panic( cpu 5 caller 0xffffff8007dfe

UPDATE:
I completed installation on HD, first boot ok, installed nvidia drivers and reboot ok, install bootloader with multibeast and now I can't boot hd anymore..
waiting for root device

 

[appletwo]

Now I've installed Sierra but boot stuck at:

UPDATE:
I completed installation on HD, first boot ok, installed nvidia drivers and reboot ok, install bootloader with multibeast and now I can't boot hd anymore..
waiting for root device

Hi there.
I'm attempting to install Sierra on my X79s UP5 here.
Any success so far?
If so, please advice!
Thanks.