problems with build

Hello, I’ve got a new build I’m a bit stumped on. Parts: *Asus Rog Maximus XI *Intel i9 9900 *G Skill 3200 8gb x2 Corsair cooler hi115 EVGA 750w gold PSU Toshiba SATA 3T Corsair Hydro Hi115 *Nvidia GTX 1060 (* indicates the part is brand new) The system turns on, all leds light up and the...