What size is the Dell Optiplex 790 motherboard? - Quora
32Gb (4X8Gb) Memory RAM Compatible with Dell Optiplex 790 Mt/Dt/Sff Desktops By CMS Brand C7 - Computer Memory Solutions
Amazon.com: DELL Optiplex 790 SFF Small Form Factor Business Desktop Computer PC (Intel Dual Core i3 CPU 3.3GHz, 4GB DDR3 Memory, 500GB HDD, DVDRW, Windows 10 Professional) (Renewed)'] : Electronics
How To Upgrade/Replace the RAM in Dell Optiplex 790! - YouTube
Dell OptiPlex 790 - i5-2500 3.30GHz - 4GB RAM - 250GB HDD - Grade C | Stone Refurb
Dell Optiplex 790 DT Intel Core i3-2100 3.10GHz CPU 4GB RAM No HDD No