[URL] comes in 2 versions LOW and HIGH Density. The HIGH DENSITY version does not and will not work.   [IMAGE]HIGH DENSITY is not compatible  
what kind of ram can I put in my 780. Processor Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz, 2992 Mhz, 2 Core(s), 2 Logical Processor(s) BaseBoard Product 03NVJ6
Optiplex 780, ram upgrade