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    Optiplex 780 SFF no POST

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    • D
      danno
      last edited by

      Re: Problem with Booting a Dell Optiplex 780 Desktop

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

        Is your issue absolutely identical? What do the beep codes tell you?

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

          What is the warranty situation? Expired, I am guessing?

          D 1 Reply Last reply Reply Quote 0
          • D
            danno @scottalanmiller
            last edited by

            @scottalanmiller No beeps unless memory is removed. Otherwise, high fan speed, indicator 2 and 4, no video.

            scottalanmillerS Reid CooperR 2 Replies Last reply Reply Quote 0
            • D
              danno @Reid Cooper
              last edited by

              @reid-cooper expired

              Reid CooperR 1 Reply Last reply Reply Quote 0
              • scottalanmillerS
                scottalanmiller @danno
                last edited by

                @danno said in Optiplex 780 SFF no POST:

                @scottalanmiller No beeps unless memory is removed. Otherwise, high fan speed, indicator 2 and 4, no video.

                Sounds like the memory or memory controller might be burned out.

                Do you have another machine with any memory that can be swapped in to test?

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                • Reid CooperR
                  Reid Cooper @danno
                  last edited by

                  @danno said in Optiplex 780 SFF no POST:

                  @reid-cooper expired

                  That's too bad, was worth checking, though.

                  1 Reply Last reply Reply Quote 0
                  • RojoLocoR
                    RojoLoco
                    last edited by

                    Not sure which generation you have, but here is a link to all the light codes and beep codes:

                    https://www.dell.com/support/article/us/en/04/sln284978/a-reference-guide-to-the-dell-optiplex-diagnostic-indicators?lang=en

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

                      @danno said in Optiplex 780 SFF no POST:

                      @scottalanmiller No beeps unless memory is removed. Otherwise, high fan speed, indicator 2 and 4, no video.

                      What are the beeps that you do get when the memory is removed?

                      D 1 Reply Last reply Reply Quote 0
                      • RojoLocoR
                        RojoLoco
                        last edited by RojoLoco

                        0_1510092538018_dell light codes 2-4.png

                        I'm guessing the graphics card is integrated on an SFF.

                        D 1 Reply Last reply Reply Quote 0
                        • D
                          danno @RojoLoco
                          last edited by

                          @rojoloco Yes, it is integrated. I don't have a pci express to test, but I am not sure if it will post anyway with the video error.

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                          • scottalanmillerS
                            scottalanmiller
                            last edited by

                            Reseat the minimum amount of memory, see what it does.

                            D 1 Reply Last reply Reply Quote 0
                            • D
                              danno @Reid Cooper
                              last edited by

                              @reid-cooper 122

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

                                @danno said in Optiplex 780 SFF no POST:

                                @reid-cooper 122

                                DMA initialization failure

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                                • D
                                  danno @scottalanmiller
                                  last edited by

                                  @scottalanmiller Tried that. Also cleared cmos. No change. Still black screen, high fan speed, solid green power light, and indicator 2 and 4 lit.

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

                                    Do you have anything plugged into that box that could be removed? Any extra cards, USB or anything like that? If so, remove them.

                                    If not, likely the mobo is dead.

                                    D 1 Reply Last reply Reply Quote 0
                                    • D
                                      danno @Reid Cooper
                                      last edited by

                                      @reid-cooper Nothing else plugged in.

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

                                        I think that likely the desktop is just dead, then. unless you can acquire a replacement motherboard, of course.

                                        D 1 Reply Last reply Reply Quote 1
                                        • D
                                          danno @Reid Cooper
                                          last edited by

                                          @reid-cooper I tend to agree. I will look for something.

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

                                            Probably worth retiring that box. How old is it?

                                            D 1 Reply Last reply Reply Quote 0
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