Hi, I'm Xutao ZHENG from China. I found a weird thing (I'm not sure whether it is a bug).
I have a external GPU connected to my thunderbolt dock. The GPU-Z says it is running on PCI-e 1.1 ×4 when idle and PCI-e 3.0 ×4 when rendering something (as shown below).
However, the HWiNFO64...