ASUS P4P800-X Board

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  • UserXP
    Badcaps Veteran
    • Apr 2012
    • 328
    • Serbia

    #1

    ASUS P4P800-X Board

    Hello guys. I am sorry for opening this new thread for something that has probably been answered elsewhere before. I know I read about it somewhere on the forum and have a general memory of it being OK.

    Here it is: on this particular older board, P4P800-X, which has 6 of the notorious KZG series 6.3V, 1500uF capacitors next to the processor socket, one of them has bulged very much on both top and bottom (I suspect it would almost completely burst if left in there for some more time). The electrolyte started leaking on the top.
    The board boots fine but after a while, it starts hanging during Power On or while working with Windows (heavy load). I didn't have this particular cap for the replacement, so I used a 16V, 1500uF capacitor which is also from KZG series (so manufacturer and series match). The board now works much better and is more responsive.

    But, for a safe side, I just wanted to check whether this cap will do good in the long run. The rest of the 5 KZGs look completely normal, no sign of bulging. But now there is always that feeling of "if one has failed, what if another one is on its way to do so".

    So, my question is whether I made a "good repair" by putting a cap of the same manufacturer and series, the same capacitance but twice as much the voltage? Are the rest of the caps going to "suffer" because of this? The board served very well and does great for its purpose even today, it would be a shame to toss it away just yet.
    Last edited by UserXP; 07-12-2014, 05:18 AM.
  • Per Hansson
    Super Moderator
    • Jul 2005
    • 5895
    • Sweden

    #2
    Re: ASUS P4P800-X Board

    Increasing voltage is fine.
    Do the rest of the KZG caps have the same date stamp as the one that failed?

    If they do then you should replace them, if not you could take a chance and see how it goes.

    While KZG is a known model to be bad I've seen allot of them, that have seen allot of usage and are working just fine.

    Do keep in mind that KZG in particular has a habit of failing without visible signs.
    "The one who says it cannot be done should never interrupt the one who is doing it."

    Comment

    • UserXP
      Badcaps Veteran
      • Apr 2012
      • 328
      • Serbia

      #3
      Re: ASUS P4P800-X Board

      Hi, thank you for a quick response! Yes, all of them have the same codes on their jackets. This is what is says: 5(7) 6C. Replacing the whole set crossed my mind, but I was unable to do so because I had only 3 of these spare 16V 1500uF caps, I would not have enough of them to replace all 6 of these, so I replaced only the most obvious one to see if it would make a difference.

      Actually, the whole board has KZG caps on it, except for the smalest ones. This is the only one that has failed and in such a catastrophical way. It was second in a row of these 6 caps and for some reason only this one almost burst apart, while all the others look really fine.
      Yes, I agree, NCC are good caps, other than this particular series which is sometimes "unstable", they can last long and serve without problems (I had many boards with them and they worked great during a long period of time).

      So, higher voltage is OK.
      Last edited by UserXP; 07-12-2014, 05:38 AM.

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