Wow, PCIe expansion cards, DisplayPort connectors,.... Feels like a blast from the past (for me) since it's been at least a decade and a half since I had a desktop computer that had PCI slots. Sorry, I'm of no tech advice use here.... but I'll put in a windowspinglist ping for ya.
PCIe and DisplayPort ... PING!
You can find all the Windows Ping list threads with FR search: just search on keyword "windowspinglist". Thanks to Red Badger for the ping!