Dell Optiplex 780: Service Tag/Serial Number


The service tag/serial number for the box/machine can be found in 2 places on the Dell Optiplex 780.

In this example the service tag number is 167L22S.

  • On the side for easy viewing; and
  • On the rear where the peripheral cables and power supply are plugged in.

Please note that the monitor serial number also needs to be recorded.


Dell Optiplex 780


Dell Optiplex 780


Dell Optiplex 780