B450 motherboards paired with 128GB RAM.
B450 motherboards paired with 128GB RAM.
But since you already have the X570, why not opt for a basic model so you don’t end up spending more? You’re not planning to run the 16-core processor or push it to its limits, so a budget board works just fine. You can run a Ryzen 5 3600 on it without any issues (even with overclocking). Just pick the cheapest available board. A more advanced X570 is mainly for serious overclockers, extra hardware, or lots of RGB. Proof: Mail in Rebate offers the board for $109.99 USD. Its VRM is designed to handle even a 3900x, which is more than sufficient.
He chose this motherboard, along with that RAM model, and it seems working even without official support. Switching to an x570 could save money, and we’re sure it functions at least that way. For video editing and studio work, PCI 4.0 might be useful later if you deal with big files, though it’s not essential right now.
Entry-level X570 boards aren't that costly. In the US, you can usually find options like ASRock Phantom 4 Pro 4 Asus Prime around $130. Prices have risen slightly since Black Friday and Cyber Monday but were cheaper before those events.