https://blog.wongcw.com/2022/01/10/ddr4%e8%a2%ab%e6%b7%98%e6%b1%b0amd%e7%a8%b1zen4%e5%b9%b3%e5%8f%b0%e6%8e%a8%e5%bb%a3%e8%a6%81%e7%9c%8bddr5%e5%85%a7%e5%ad%98%e6%99%ae%e5%8f%8a%e9%80%9f%e5%ba%a6/