Optiplex 780 best replacement memory Tags: Prebuilt Optiplex RAM Dell Memory Systems Last response: October 24, 2012 8:53 PM in Systems Share cpiza54 October 24, 2012 8:35:09 PM Just need a straight answer from someone on the best RAM upgrade for a Dell Optiplex 780. More about : optiplex 780 replacement memory tiny voices a b } Memory October 24, 2012 8:53:06 PM Chances are you have a 32-bit operating system, therefore you will only be able to see 3gb. Buy a cheap 4gb kit. m 0 l Can't find your answer ? Ask ! Publish Related resources How to find replacement bios for a NEW Dell Optiplex 780 ? Forum SolvedOptiplex 780 RAM compatibility question Forum SolvedLooking for video card for Optiplex 780 Forum SolvedNeed help finding a PSU for Optiplex 780? Forum SolvedPerformance Heatsink required for Optiplex 780 with quad core CPU Forum SolvedCan I use this case for my Dell Optiplex 780 SFF (small form factor) ? Forum SolvedNeed a PSU for an Optiplex 780? Forum SolvedCan Optiplex 780 run an i5? Forum SolvedDell Optiplex 780 Forum SolvedDell Optiplex and GeForce 780ti Forum Solvedoptiplex 755 vs 780 Forum Solvede7400 caompatiblity with OptiPlex 780 Forum SolvedOptiplex 755 USFF rear fan replacement Forum SolvedHD 6670 on Optiplex 780? Forum SolvedDell Optiplex 780 motherboard Forum SolvedShould i put Gigabyte Raedon HD 7750 on my Dell Optiplex 780 MT (Mini Tower)? Forum SolvedBest Gaming Specs For A Optiplex 745 Forum SolvedUpgrading Optiplex 380 to 8GB memory. Forum SolvedReplacement PSU for Optiplex 790 Forum SolvedUpgraded memory in Dell optiplex gx 620 and computer would not boot Forum More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !