I replaced my PG279Q with XG279Q monitor which i bought Yesterday. The problem is the ROG logo at the back is not working, no light or RGB. how to turn it on/off? thanks for answering.

I am planning to make an upgrade of my PSU. Asus Thor 850P is my candidate because one, All of my component are asus brand only RAM and PSU are not. 2nd,That OLED display is so nice! My problem is, can i plug CPU, VGA and PCI-E in any slot? i'm kinda...