There is a similar question here, but still I am not sure that DIMM Socket Support means the number of sockets NEEDED or SUPPORTED?
For example, take a look at the supported Corsair RAM for Taichi X399 mother bother
LINK
XXGB in the Corsair code is the total size of the RAM package.
In the first row: does
2means 2 sockets are needed to install this package (2X16GB)? Or does it say, you cannot use another 3 packages to use all 8 available sockets (8x16GB)?In the last row: DIMM Socket Support is
2, but you need at least 4 sockets to install 64GB of 16GB size (4X16GB) (MX in the code is the number of modules).
OR in the case of Patriot RAMs

Rows 4-7 are similar packages of 2X8GB. What is the difference between 2/4/8 and 2/4 rows? Does it mean that you can use 8 sockets of the motherboard for row #5 to install 64GB and for the rest, only 4 sockets are supported to install 32GB?