dc7800 - motherboard bad capacitors

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  • buran
    New Member
    • Aug 2014
    • 5
    • Slovenia
    #1

    dc7800 - motherboard bad capacitors

    Hello,
    I am interested if you could share your opinion if these capacitors (and circumstances) could be the cause of my motherboard malfunction. I have installed new more powerful graphic card and the motherboard went "dead" (fans spin on then go off, 4 short beeps then pause cycle).
    After looking in more carefully i've noticed a dozen (13 - 470 uF 16V exactly) mildly cap and bottom bubbled and capacitors, some of them even show sign of leak.
    Is it possible that the new more powerful card pulled a bit more power and helped them in their final breakdown.

    Here are some nice pictures.
    Share your opinion
    Attached Files
    Tags: None
    • selldoor
      Slow Learner
      • Dec 2010
      • 7870
      #2
      Re: dc7800 - motherboard bad capacitors

      Capxon KF ? - Notoriously bad - I will let the motherboard gurus suggest replacements
      Please upload pictures using attachment function when ask for help on the repair
      http://www.badcaps.net/forum/showthread.php?t=39740

        Comment

        • buran
          New Member
          • Aug 2014
          • 5
          • Slovenia
          #3
          Re: dc7800 - motherboard bad capacitors

          Last night i did pulled out some capacitors I`ve seen capacitors in worse condition but these are interesting too. Will post some funny pictures later on.

            Comment

            • c_hegge
              Badcaps Legend
              • Sep 2009
              • 5219
              • Australia
              #4
              Re: dc7800 - motherboard bad capacitors

              It is entirely possible that the caps are your problem. I can't tell from the pics what the voltage and capacitance ratings are, but something on this list (https://www.badcaps.net/pages.php?vid=23) should do fine.
              I love putting bad caps and flat batteries in fire and watching them explode!!

              No wonder it doesn't work! You installed the jumper wires backwards

              Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium

              Office PC: HP ProLiant ML150 G3, 2x Xeon E5335 2GHz, 4GB DDR2 RAM, 120GB Intel 530 SSD, 2x 250GB HDD, 2x 450GB 15K SAS HDD in RAID 1, 1x 2TB HDD, nVidia 8400GS, Delta DPS-650BB 650W PSU, Windows 7 Pro

                Comment

                • momaka
                  master hoarder
                  • May 2008
                  • 12175
                  • Bulgaria
                  #5
                  Re: dc7800 - motherboard bad capacitors

                  CapXon KF? Looks like someone recapped this board before you as I don't recall any Intel boards using CapXon caps.

                  Also, it looks like those CapXon KF caps have leaked electrolyte on the board. Electrolyte can eat away traces over time. So I suggest you remove them immediately and thoroughly clean the affected areas on the board with IPA (isopropyl alcohol), preferably 95% or higher.

                  The caps on c_hegge's list should work fine. Panasonic FR/FM, as well as Nichicon HD, Chemicon KZE, and Rubycon ZL/ZLH/ZLG/ZLJ should be fine as well since the caps in question look like general filters for the PCI-E slots.
                  Last edited by momaka; 08-27-2014, 11:43 AM.

                    Comment

                    • Farhan9
                      New Member
                      • Jan 2017
                      • 3
                      • Pakistan
                      #6
                      Re: dc7800 - motherboard bad capacitors

                      I want deatils DC 7800 all Capacitor picture

                        Comment

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