This message was posted on behalf of Intel Corporation
Yes, this could be related to a bottleneck, in this case sine you are using a video card the Intel graphics are disable, so in order to install the latest graphics drivers we just need to visits the manufacturer’s web site:
Also, a BIOS update is also a good thing to try to the latest version:
Also, as a troubleshoot step, if you are going to purchase a new video card to test it with the board, that will be a good way to rule out a possible problem with the video card itself, or also before you buy it, if there is a PC repair store close to you, they might be able to test the board with a different video card.
Any further questions, please let me know.