Question What type of RAM does the Dell Optiplex 790 use?

[GeorgeCZ75]

Specifically speaking, it’s the j3c2f motherboard. What kind of RAM does it use? Does it use non-ecc RAM? Does it use unbuffered RAM? What’s the maximum speed of RAM it can use?

 

[COLGeek]

See here:

https://www.crucial.com/usa/en/compatible-upgrade-for/Dell/optiplex-790-desktop

Unbuffered, DDR3-1600, non-ECC looks like the coin of the realm.