Powerspec G914 USB-c Display question

petdocvmd

I just picked up the G914, which is a beast of a machine! I am going to use it for flight simulation, and my setup requires 6 monitors. I'm using the 3 DP ports on the 5090 for my main monitors (working fine). I was planning on driving 2 smaller displays via USB, and read that the MSI Tomahawk MoBo and the 9950X3D should allow this. When tried, however, the USB monitors indicate "no signal." I am using a known working USB monitor and video-capable USB-C cable, and verified the correct ports on the back of the PC. Is there a BIOS setting, driver, or something that I'm missing? Thanks!

PowerSpec_MikeW

I don't see Thunderbolt or USB-C Power delivery on the board. A thunderbolt add in card would use your video outs on the GPU. You could run a monitor off the IGP.