I'm going to be building a small storage server based on a Ryzen 5700G and a Gigabyte A520I AC motherboard. I'm hoping to get some ECC RAM, and I'm starting with the compatibility list provided by Gigabyte, but it's of course not exhaustive and the products I can find for reasonable money on eBay are not specifically listed.
There are two options that particularly stand out to me. There's some Samsung 2133mhz memory, but it's 4DRx4 and there are no 4DRxx items on the compatibility list. There's also some Samsung 2400T memory that is 2Rx4, which there are plenty of 2Rxx items on the compatibility list, though not specifically x4, mostly x8. Also, I'm not sure what "2400T" indicates versus a traditional 2400mhz label.
I'm leaning towards the 2Rx4 memory instead of the 4DRx4 memory, because there is no 4DRxx memory on the compatibility list, but I want to double-check here to see if I'm on the right track in regards to reading the memory compatibility list first. The list is here for anyone wanting to double-check my work:
https://download.gigabyte.com/FileList/Memory/mb_memory_a520i-ac_cezanne.pdf?v=01d5a39004cbc90ef77bc872a9eaccba
Thanks