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    Problem with Booting a Dell Optiplex 780 Desktop

    IT Discussion
    hardware desktop dell optiplex 780 motherboard
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    • scottalanmillerS
      scottalanmiller
      last edited by

      PSU = Power Supply Unit

      1 Reply Last reply Reply Quote 1
      • gjacobseG
        gjacobse @IT-ADMIN
        last edited by

        @IT-ADMIN
        Yes - as SAM mentioned PSU Power Supply.

        The power button does have a green LED - but the numbers 1-4 should be amber. , and they actually maybe on the back of the unit. They are a POST - Power on Self Test - code...

        dbeatoD 1 Reply Last reply Reply Quote 0
        • C
          cucezo
          last edited by

          Various solutions to remove booting errors:

          • Verify the Computer Finishes Initial Power-Up (POST)

          • Unplug All External Devices

          • Check for Specific Error Messages

          • Reset the BIOS to Default Values

          • Run a Computer Diagnostic

          • Check Dell Optiplex 780 Manual for more solutions.

          1 Reply Last reply Reply Quote -1
          • Emad RE
            Emad R @IT-ADMIN
            last edited by

            @IT-ADMIN

            Can you try swapping the RAM DIMMs, or removing one.

            Also try:

            Disconnect it from the wall outlet, press the power button for 30 seconds for 2-3 times, connect it to power and power it on again.

            1 Reply Last reply Reply Quote 1
            • dbeatoD
              dbeato @gjacobse
              last edited by

              @gjacobse In the past I have had issues with the 780 and 7010 series where the power button board causes this issue. Replacing the PSU did not work so found out the issue on the power button just in case the PSU does not work for you.

              1 Reply Last reply Reply Quote 0
              • DanpD
                Danp
                last edited by

                Funny how a necro-post (almost seems like a bot-post) by @cucezo has brought new life to this thread.

                RojoLocoR 1 Reply Last reply Reply Quote 2
                • RojoLocoR
                  RojoLoco @Danp
                  last edited by RojoLoco

                  @Danp said in Problem with Booting a Dell Optiplex 780 Desktop:

                  Funny how a necro-post (almost seems like a bot-post) by @cucezo has brought new life to this thread.

                  Funny how both posts by that account are totally bot-like...

                  edit: both their posts have links to "guideusermanual.com". not suspicious at all.

                  DanpD 1 Reply Last reply Reply Quote 2
                  • DanpD
                    Danp @RojoLoco
                    last edited by

                    @RojoLoco Grape minds....

                    1 Reply Last reply Reply Quote 1
                    • jt1001001J
                      jt1001001
                      last edited by

                      As mentioned, check the power button itself. Still have 780's here many times the button sticks and will cause this symptom.

                      1 Reply Last reply Reply Quote 0
                      • scottalanmillerS
                        scottalanmiller
                        last edited by

                        What ever came of this? Was it the PSU?

                        1 Reply Last reply Reply Quote 0
                        • Reid CooperR
                          Reid Cooper
                          last edited by

                          Apparently this got abandoned.

                          1 Reply Last reply Reply Quote 0
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