GPU running at x8 PCI-e instead of x16. GPU is seated in the 1st slot, tried seating in 2nd slot, then its running at 4x. Tried reinstalling drivers, tried adjusting some settings
PCIE x16 slot only running my RTX 3080 at x4 (8GT/s) ( Z490 AORUS ELITE AC ) : r/overclocking
How to Check What Graphics Card (GPU) Is in Your PC