@acebmxer Supermicro server systems. The Eypc CPU's have 128 lanes of PCIe Gen4. The cards are inserted into appropriate slots.
I just updated the BIOS and BMC code on the server with the Intel GPU. I went through and re-enabled all the SR-IOV stuff and made sure ReBAR was enabled.
Still, GPU-Z reports that a Windows guest with the Intel GPU passed-through is linked up with a single lane of PCIe gen 1.
I suppose that could be cosmetic, however passing through the same Intel GPU to a Debian VM has issues when trying to initialize the card on boot and I can't get it to work there at all. It will at least do something in Windows.