I have the dell 5675 gaming pc. Ryzen 1700x, rx 580 8gb, 16gb ram. The prebuilt has a dell motherboard which is locked and I cannot do anything with it. My ram is 3000MHZ, but I cant enable xmp since the motherboard is locked. The airflow is also kind of bad with the case sinec the gpu get hot very quickly. Its blower sytle refernce model. Should I buy a new b450 motherboard + a new case (both combined are $120 ish). Or build a new computer from ?