Question about Gigabyte Aorus GeForce RTX 3090 Xtreme

ASUS Maximus VIII Ranger (Z170 chipset). I have opened a support report with Gigabyte and Asus. It smells more and more like compatibility problems.

I found another forum thread on the internet from someone with the same problem. He bought a new PC and then it worked - but I don't really see why. Wait until the middle of next week and if in doubt, return the card.

Yes, I had. Also coming from a GTX 1080, what kind of motherboard and CPU do you have?