If you were "lucky" enough to get hold of one of Nvidia's new RTX 50 graphics cards, you should really check it for problems.
Nvidia partner, MSI has been making changes to the price of its RTX 5070 Ti GPU amid media reports, however, it remains well above the main brand's MSRP.
So, in short, your PC will need to be running in full UEFI mode, and not a legacy compatibility mode (known as CSM or ...