Solved Dell Optiplex 620 Mini Tower Ram Question? Tags: Optiplex RAM Dell Memory Last response: November 11, 2013 8:07 AM in Memory Share 4thcoming November 10, 2013 11:19:23 PM I have 4 memory modules in my Dell Optiplex 620 Mini Tower for a total of 2 GB Ram at 4 512MB sticks each. My question is can I upgrade the 4 512 MB sticks or rather take them out and replace them with sticks of ram that are 1GB each in the 4 slots in the PC? Thanks. More about : dell optiplex 620 mini tower ram question Best solution cin19 a c 82 } Memory November 11, 2013 8:07:56 AM If you are talking about the OptiPlex GX620 adn using the 64-bit OS, and yes you can. The PC can install up to 4 X1 GB DDR2 PC2-5300 (non-ecc). If you use the 32-bit then you may only see 3.5GB or 3GB RAM. Share Can't find your answer ? Ask ! Publish Related resources SolvedBest graphics card for a Dell Optiplex 620 mini tower and SFF? Forum SolvedDell Optiplex GX620 Mini Tower... DVD drive? Forum Overheating issues on Dell Optiplex GX620 Mini Tower Desktop Forum SolvedUpgrades to a Dell Optiplex 790 Mini tower Forum SolvedHow To Upgrade Dell Optiplex 760 Mini Tower Forum SolvedDell Optiplex 760 Mini Tower CPU Upgrade from Dual Core to Quad Core? Forum SolvedShould i put Gigabyte Raedon HD 7750 on my Dell Optiplex 780 MT (Mini Tower)? Forum SolvedDell Optiplex 755 Mini-Tower Gaming Upgrade Final Decision Forum Adding Hard Drive to Optiplex gx620 Mini Tower Forum Power supply and graphics card for Dell Optiplex 755 Mini Tower Forum SolvedUpgrading Dell Optiplex 745 mini tower PSU Forum SolvedDell Optiplex 745 Mini Tower Graphics Card Help Forum SolvedDell Inspiron 620 mini tower case Forum Upgrading Dell Optiplex 580 Mini-tower Forum Can a GT 630 Zone Edition fit inside the Dell OptiPlex 780 Mini Tower? Forum SolvedUse Standard ATX Power Supply in Dell Optiplex 960 Mini Tower? Forum SolvedDell Inspiron 620 Mini Tower doesn't seem to have a bracket Forum Dell Optiplex 960 ‘mini tower’ Upgrading CPU Forum SolvedDell GX620 mini tower CPU upgrade Forum SolvedDell GX620 mini tower motherboard upgrade Forum More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !