Can new caps have slightly bulging tops?

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  • alucard_t2
    New Member
    • Jan 2009
    • 8
    #1

    Can new caps have slightly bulging tops?

    Hello, I just came from an electronics store...bought some new caps for a Epox 8RDA+ mobo......some of the smaller caps I bought, [1000mF/6.3V] don't have entirely flat tops, but the leads are ok and the capacitors don't seem to have been used...I wouldn't want to put them on just to have them taken off again...
    Tags: None
    • Leopard
      Senior Member
      • Mar 2008
      • 109
      • Finland
      #2
      Re: Can new caps have slightly bulging tops?

      A pic would help
      Some caps can have uneven tops, not bulging but not flat, it's kinda hard to explain. Just look at some Sanyo caps to see what I mean.

        Comment

        • alucard_t2
          New Member
          • Jan 2009
          • 8
          #3
          Re: Can new caps have slightly bulging tops?

          thanks..I appreciate it the tops of 3 caps seem a very tiny bit swollen[or maybe I'm paranoid]...the bulgers I've seen were like mellons)..and another thing. Should I use'em if the casing is a bit deformed?[I'm guessing there might be some pressure inside] Two of them seem to have been poorly handled..They were cheap so I don't expect a lot of quality on the inside maybe I should just buy 5 more..no pics..I forgot my camera @ home

            Comment

            • PM650
              Member
              • Dec 2008
              • 37
              #4
              Re: Can new caps have slightly bulging tops?

              Frankly, I (myself) wouldn't bother installing any caps at all that were questionable in my mind. This type of thing could come around again in the future and bite you, better to do it right once and forget about it. I recently redid a psu that had completely vented caps...from just sitting around in my room for a few years (although they were Jun Fu's...). The caps didn't all of a sudden decide to completely bloat one day, it was a gradual process, one that the caps you got cheap may already be going through, potentially due to improper storage or something else.
              As far as deformities/dents, I wouldn't bother using them, but I'm sure someone else will have something better to say about this.

              Any info on the make/series of the caps you bought?

                Comment

                • Gianni
                  Badcaps Veteran
                  • Jul 2008
                  • 681
                  • Italy
                  #5
                  Re: Can new caps have slightly bulging tops?

                  Originally posted by PM650
                  Any info on the make/series of the caps you bought?
                  Good question.

                  Your MOBO Epox 8RDA+ seems to be a little bit old so probably you can use average good caps.
                  In this post made by PCBONEZ you can read what I mean.

                  For sure if you use unknown caps and you have doubts about them, you are going to do an experiment, OTOH if you want to do a work because you want a reliable MOBO, you must use good caps.

                  Ciao
                  Gianni
                  "In the confrontation between the stream and the rock, the stream always wins...Not through strength, but through persistence."
                  H. J. Brown

                    Comment

                    • alucard_t2
                      New Member
                      • Jan 2009
                      • 8
                      #6
                      Re: Can new caps have slightly bulging tops? SHE LIVES AGAIN

                      night of the living mobos..thx badcaps...they were DON and JAMICON most likely not real names, the others where completely noname..but it worked, can't believe it I thought the caps would just pop..It took 2 days to get it right, I just hope it remains stable

                        Comment

                        • willawake
                          Super Modulator
                          • Nov 2003
                          • 8457
                          • Greece
                          #7
                          Re: Can new caps have slightly bulging tops?

                          there is possibility for caps to degrade in storage so they bulge but new caps can be found which appear to be bulging and this is probably due to the stamping of the vents or other assembly process of the caps.

                          this is where esr meter comes in as visual inspection while useful may mislead
                          capacitor lab yachtmati techmati

                            Comment

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