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    Optiplex 780 SFF no POST

    IT Discussion
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    • 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?

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        • 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.

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          • 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.

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                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.

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                    • 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.

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                        danno @Reid Cooper
                        last edited by

                        @reid-cooper Nothing else plugged in.

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                        • 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.

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                            danno @Reid Cooper
                            last edited by

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

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                            • Reid CooperR
                              Reid Cooper
                              last edited by

                              Probably worth retiring that box. How old is it?

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                                danno @Reid Cooper
                                last edited by

                                @reid-cooper I think its a 2013. I use(d) it for a ltsp server.

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                                • Reid CooperR
                                  Reid Cooper @danno
                                  last edited by

                                  @danno said in Optiplex 780 SFF no POST:

                                  @reid-cooper I think its a 2013. I use(d) it for a ltsp server.

                                  Not ancient, but might be time to retire it.

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                                    danno @Reid Cooper
                                    last edited by

                                    @reid-cooper Maybe I can find a cheap mobo and give it a few more years. Thanks for the insight!

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                                    • Reid CooperR
                                      Reid Cooper
                                      last edited by

                                      Possible, if you can find one cheaply.

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