A:Answer You can control the ambient RGB internal lighting within the Lenovo Legion Tower 5i Gaming Desktop, model number 90NC00JAUS, from within the Lenovo Legion Vantage Dashboard. If you are having issues with the RGB internal lighting, you can call Lenovo Tech Support at: 877-453-6686. Here is the link to the complete parts list for this model configuration: https://pcsupport.lenovo.com/us/en/products/desktops-and-all-in-ones/legion-series/legion-t5-28imb05/90nc/90nc00jaus/parts/display/model