I have a Gigabyte X570 UD motherboard (with 3 x PCIE x16 length slots) and a Mellanox ConnectX-3 10Gbe card. When I install the Decklink card, the 10Gbe card no longer appears in device manager. I have tried switching the slots between the two, but nothing changes. Both cards work perfectly when the other one is not plugged in.
- I have tried changing the PCIe Biufication the PCIe Gen settings in the BIOS but that doesn't help.
- I have tried an old Blackmagic Intensity Pro (2009) I had lying around and it works perfectly with the 10gbe card.
- I have also tried an Intel intel X520 10gbe card instead of the Mellanox one, and it doesn't show up if the Decklink card is installed
- I have upgraded the X570 bios firmware to the latest version
I am stumped on this one, hoping someone here might be able to help.