I bought a new laptop acer aspire 3 315-41g. Only 6.9 gb of ram is usable out of 8. Cpu is ryzen 3 2200u with vega 3 but it also has dedicated gpu radeon 535 with 2gb vram. Is there any way I can disable vega 3 or at least lower the memory so it wont eat so much ram? I already checked in bios and there is no options to disable