RTX 4090 sometimes gives no video via DisplayPort during boot

The DisplayPort output connects to the next downstream display This cabling arrangement, with one DisplayPort cable between each set of monitors, provides a

DisplayPort + HDMI 4 Realtek GbE LAN 5 Ultra Durable PCIe Slot • PCIe® Slot • Running 1* x16 6 Audio Noise Guard 7 High-End Audio Capacitors 8 5+

displayport slot Forcing the PCIEx16 slot to Gen4Gen3 (it normally runs at Gen5, but Are you using an HDMI cable on secondary monitor and display port cable

display port slot Silly question, which Display Port in the back should I plug the cable into? It has 3 DP on the rear of the card, does it matter which one I