https://blog.wongcw.com/2021/10/14/rambus-%e7%99%bc%e4%bd%88%e7%ac%ac%e4%ba%8c%e4%bb%a3-ddr5-rcd-%e9%a9%85%e5%8b%95%e5%99%a8%ef%bc%9a%e9%a0%bb%e7%8e%87%e8%a1%9d%e4%b8%8a-5600mhz/