Thunderbolt screen connected to motherboard: Asrock Z790 PG-ITXTB4
Thunderbolt screen connected to motherboard: Asrock Z790 PG-ITXTB4
The screen isn't being recognized on your new PC with Thunderbolt, but it works on your laptop. This could be due to differences in hardware support or driver configurations between the two devices. The dock seems to recognize your laptop's Thunderbolt 3 setup, while it doesn't detect your monitor on the new build. Make sure drivers are properly installed and compatible for both systems.