Question Problem with Sound Card PCIe on Gigabyte Aorus Z390

Apr 28, 2019
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Hi ppl, i have a brand new z390 ultra aorus; I have 1 NVMe in the third slot in sharing with x4 PCIe slot.
When i install the sound card (in every slot) at the first boot it works but if i reboot o simply power off it will never go back working untill i change again the slot of the sound card. I tried some of power management in windows 10, driver not necess. because in my old X99 the card worked. I try to play with bios setup but not cigar at the end. I wrote to gigabyte yesterday but i can't go to sleep. If the card never worked i can pass over but in the first boot is ok and not in the second? WTH?
Ps: i have 5 Drive in sata, 2 SSD and 3 HDD, but i think this not the problem.
Many thanks guys if u may help me