I tried to change UMA Buffer Size for Aspire 3 A315-42G so the integrated GPU won't use up 2 GB of RAM. I want to set it to 512 MB. I wanted to send the BIOS download link but it didn't allow me so you can google for its drivers in Acer website. I was only able to view that it is possible to change this and nothing more. Can someone tell me how to change this default value and possibly do it for me just in case if I can't? If it's easy I would appreciate a straight BIOS unlock with all hidden menus (this is in one of these hidden menus as well).