GPU-Z and AMD Radeon Software indicate that my graphics card operates in x8 mode rather than x16 mode.
GPU-Z and AMD Radeon Software indicate that my graphics card operates in x8 mode rather than x16 mode.
It seems the graphics card was part of the issue, as it displayed the same x8 on another machine. XFX advised running it at x16 and noted the discrepancy between two systems. The problem with the other PCIe Root Port and Upstream Switch Port remaining at x4 isn’t clear from what I found online.