I have an Asrock B550 Phantom Gaming ITX board with a Ryzen 5700G. When using the attached EFI, video memory only indicates 512MB even though I set it to 8GB in the BIOS. Can anyone out there help me figure this out? The machine is very sluggish with only 512MB. I am using nootedred.kext to be able to use the integrated graphics and no discrete graphics card.