Solved: Dell Optiplex 780 Error Messages/Diagnostic Codes Power Button and then 1 and 3 number lights flash - Dell Community
Dell C27VV OptiPlex 780 Mini Tower DCSM1F Socket T LGA775 Motherboard | 0C27VV | 780 Mini Tower (Model DCSM1F) | Team Spares
![Dell Optiplex 760, 780 Green LED 3 and 4 / Dell Optiplex 760 - LED verte clignotante "3" et "4" - YouTube Dell Optiplex 760, 780 Green LED 3 and 4 / Dell Optiplex 760 - LED verte clignotante "3" et "4" - YouTube](https://i.ytimg.com/vi/CM25ySQqRDA/maxresdefault.jpg)
Dell Optiplex 760, 780 Green LED 3 and 4 / Dell Optiplex 760 - LED verte clignotante "3" et "4" - YouTube
![Dell Optiplex 760, 780 Green LED 3 and 4 / Dell Optiplex 760 - LED verte clignotante "3" et "4" - YouTube Dell Optiplex 760, 780 Green LED 3 and 4 / Dell Optiplex 760 - LED verte clignotante "3" et "4" - YouTube](https://i.ytimg.com/vi/E6r6rCPvXYQ/hqdefault.jpg?sqp=-oaymwEiCKgBEF5IWvKriqkDFQgBFQAAAAAYASUAAMhCPQCAokN4AQ==&rs=AOn4CLDIY7nvkhrvrmhoV7l27nZlbXr4xw)