EP-8RDA3 rev2.1 bad caps? (+fotos)

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  • henning
    New Member
    • Aug 2005
    • 6

    #1

    EP-8RDA3 rev2.1 bad caps? (+fotos)

    Hello everybody,

    Could you please give me your opinion on the capacitors shown in the attached fotos? They don't look as cleary bulged out from the center as other shots in this forum, but still, though the "quarters" look bulged out to me... There is no leakage of electrolyte to be seen or smelled, though, and the bases seem ok, too. (Note: the caps are still perfectly upright, the fotos just have a little wide-angle distortion)

    System symptoms:
    After running flawlessly for almost two years the system began to just turn off randomly. I had to unplug the power chord to get it to boot again. Then one day it just didn't boot anymore. The onboard lcd display just shows post code FF, the cpu fan works but nothing else. No speaker beep, the drives don't even get power. The system has been used extensively, running linux with months of uptime. I never touched the bios (updates or replacements). I never changed anything else of the hardware, i never overclocked the cpu.

    According to the motherboard manual, the FF post code indicates "boot attempt", and hanging there can be caused by incorrectly inserted ram, cards or bios chips, or simply indicates a "mainboard problem" (suggested solution: "replace mainboard"). Since i didn't do any of the former, I guess I'm stuck with a "mainboard problem".

    What i tried:
    Flashing the bios, removing the battery overnight, removing all addon-cards, unplugging ide and floppy drives, removing cpu and ram. Nothing worked, still just FF.
    I even took the board out of the case and powered it on all by itself, but no use.
    I was following the advise given in forums concerning this motherboard, though most threads were about post code FF in connection with overclocking/bios updates.
    I also measured the PSU which delivers the correct voltage and power on all connectors (I turned it on completely by bridging the PW_ON slots on the 20-pin connector).

    I believe this verifies that the mainboard is to blame. I'd like to know wether recapping could be an option, but i'm just not sure wether the caps look normal or not.

    System setup:

    Epox 8rda3 rev1.2 mainboard
    ATX 300w P4 PSU
    Athlon XP2200
    512mb DDR 333 infinion ram
    NVidia Geforce MX440-8x
    SBLive!
    Tv card

    Regards,
    Henning
    Attached Files
    Last edited by henning; 08-09-2005, 12:02 PM.
  • henning
    New Member
    • Aug 2005
    • 6

    #2
    Re: EP-8RDA3 rev2.1 bad caps? (+fotos)

    Forgot to mention the brands and specs of capacitors used on this board:

    Hermei 2200uF 16v
    OST 3300uF 6.3v
    GSC 1500uf 6.3v
    GSC 1000uf 6.3v
    + a few smaller GSC caps

    All brands are mentioned in the "bad manufacturers" thread...

    Comment

    • Chris1992
      Badcaps Veteran
      • Apr 2005
      • 561

      #3
      Re: EP-8RDA3 rev2.1 bad caps? (+fotos)

      All those caps can be failed and not show outward signs. The bulging in the photos is most likely the result of the stamping machine that stamped the vents being set to make deeper vents than spec'd. Caps can look like your photos and be fine; however, as you have badcap brands that fail w/o outward signs, I assume they're dead. Try replacing all lytics +470uF. Shame EPoX used crap on that board, that was one of the best socket A according to opinions on the web, never had one myself so I couldnt offer personal experiences.
      The great capacitor showdown!

      Comment

      • Per Hansson
        Super Moderator
        • Jul 2005
        • 5895
        • Sweden

        #4
        Re: EP-8RDA3 rev2.1 bad caps? (+fotos)

        Just out of curiosity did you recap your mobo? I'm guessing you have a 8RDA3+ mobo and not 8RDA3?

        I've been running mine 24/7 overclocked for almost exactly two years now and it would be nice to know if it really was the caps fault your mobo failed...
        "The one who says it cannot be done should never interrupt the one who is doing it."

        Comment

        • henning
          New Member
          • Aug 2005
          • 6

          #5
          Re: EP-8RDA3 rev2.1 bad caps? (+fotos)

          Dear Per,
          you're right, it was an 8RDA3+ model. I didn't recap it in the end, since i got an offer for a retail Asus board for half the price, which was only 10Euros more than the price for new capacitors.
          The guy at the store also said that he has seen a few 8RDA3 boards fail lately, and some did indeed have bulging capacitors... He also agreed that the failure of my board was most likely due to bad caps. But I can't really tell for sure...
          So good luck with your board, I'm sorry I can't give a definite answer.
          Regards,
          Henning

          Comment

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