Thanks for the reply,
“did you try to re-connect Power PCI-E cables to the GPU?” You mean after windows booting? -No I didn´t. Let me try that…
Hive OS doesn´t find the GPU.
I`ve created the rom from this tutorial: https://www.youtube.com/watch?v=JOwy_Rr5uR0&t=73s
After that I restarted the computer. Every steps went fine, no errors whatsoever, except last one.