Bump.
Exact same issue. HWInfo shows the Wigig card running at PCIE 2.0 instead of 3.0, even with 3.0 as the forced method in BIOS. GPU is confirmed as running at 3.0.
Can we get a response from HTC on this? With 3.0 forced as the default method, the card should be running at 3.0, and it's most definitely not.