I was building a new machine and had the machine together using onboard graphics and the 7900 xt showed up today. I put it in the new build with the 2 8 pin power connectors.
Result: Fans spin, but card is not detected in the PCI slot by the BIOS.
- Reseated everything
- Tried a different PCI-E slot
- Took GPU from old machine and put in new machine (works)
-Took 7900 and put in old machine (Same problem)
Everything looks and feels like, to me, it doesn't get power. Any ideas would be appreciated.
You can try to update the BIOS, X670E AORUS MASTER F8c BIOS mentions "Improve memory & PCIe device compatibility".