比利时采购需求：AF400S ARGB，带 RGB 的 PC 机箱，ATX 中塔，钢化玻璃，气流设计，游戏配置

I recently ordered a product, but I'm having trouble getting the display to work properly. I've followed the setup instructions, but I can't seem to get it to show anything on the screen. Could you please provide me with some guidance on how to troubleshoot this issue? Any specific steps or tips would be really appreciated, as I'm eager to get it up and running. Thank you for your assistance!