Hi guys. I own a dell optiplex 5050 SFF with installed total memory 8GB - - >  2 modules x 4GB DDR4 2400. Because i need more memory (16gb) and to used the existing memory, i am thinking to buy and install two (2) more dell 4GB identical memory modules.Total configuration: 4 x 4GB DDR4 2400 Dell memory modules. My question is if everything will work fine and achieved 16GB ram with the configuration i described above? The reason i asked, is because from a Dell optiplex 5050 SFF manual, ι saw the below proposed Memory Configuration.. Thank you in advanced