I have a client who needs to connect to six monitors, but also does video/image editing, I have him setup to use an NVS 810, but that wasn't designed for that type of workflow. Previously we have gotten him a 1080 and a 2080, but neither of those support 6 monitors on their own. I have a Strix Z390-E Motherboard and have tried booting with both previously mentioned GPU's attached, but it does not POST when I do so. It will POST with the cards individually attached, I just don't know what I'm doing wrong, or whether that combo is possible. The PSU that I'm using is 1300W.
Any help would be appreciated.