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The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

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    The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

    The much awaited showdown is being prepared. At long last, we will see how Rubycon, Samxon, and panasonic will fare against eachother in a head to head comparison over an extended period of time.

    The scenario:

    3 identical systems (Abit KT7-RAID motherboards, all running the A9 BIOS), one running Rubycon MBZ series caps, one running Samxon GC and GD series caps, and the third running Panasonic FC series caps. All three system will have the same CPU's, amount and brand of RAM, PSU's, Operating Systems (WinXP Pro) and cases. When the test is underway, these systems will be exposed to inadequite cooling (not enough to cause overheating, but enough to stress things a bit). They will be running F@H applications for the Badcaps.net Folding Team, with the app set at the highest priority to keep them busy and working hard. Periodically, I will shut them down and take ESR readings from all caps on each board, as well as monitoring temps and stability. The first one to drop out of ESR specs, or fail completely will be eliminated, and the brand scourned and laughed at here.... I plan to run this test for atleast a year, reporting on it every couple weeks to record deterioration and changes. Honestly, this should be a good comparison, and I really don't forsee any of the brands swelling or venting their innards. This will be the 'test of time' comparison, and may the best brand win. All the brands will deteriorate a little over the course of this, the one that does it the least will immerge as the winner!

    I purchased the Rubies directly from Rubycon. The Pannies will be coming from Digikey (I still have to order the right values for the KT7). The Samxon caps were donated by Joe (Big Pope). I would like to thank Joe for this contribution!

    Here's some pics of the KT7 recapped in Samxon caps as it s recapping was completed, and I did the initial testing with it. The board passed initial testing with flying colors.

    I will get some pics of the board capped in Rubycon MBZ's tomorrow. I'll also locate and order the Panasonic FC's as well.



























    More updates soon........
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    #2
    Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

    Some random suggestions and comments:

    * Please try to track location wrt hot components in your data; there may be interesting differences within series that are related to the parts' immediate ambient;

    * I suggest using a spreadsheet, recording start date/time, measurement date/time, calculated cumulative hours, and ESR; be sure to take pre-test data;

    * Unless a DUT vents first, you might want to consider doubling the initial ESR a technical failure;

    * C and ESR are very temperature sensitive; take your ESR readings after allowing 1-2 hours of cooling (the point is to cool the core, not just the can); recording case temps might be useful, but possibly TMI for your purposes.

    This test sounds really good.
    PeteS in CA

    Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
    ****************************
    To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
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      #3
      Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

      I only can say awsome TC, this is absolut an interesting trial. I am very excited wich brand will win and if those Samxon can stand up with those Rubycon`s. Very aprecitated and TX for the effort making us a little bit smarter.

      Comment


        #4
        Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

        Just out of interest, what were the original caps on the new motherboards before you recapped them? It might also be a good idea to include Nichicon caps in a similar test, as they are renowned for being 'good' caps. The spate of failures was limited to a certain batch of caps, and the problem should not come up again.

        Next, do a battle of the bad caps (such as Tayeh and GSC) - see which ones vent first!
        You know there's something wrong when you open your PC and it has vented Rubycons...

        Comment


          #5
          Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

          Originally posted by Tom41
          Just out of interest, what were the original caps on the new motherboards before you recapped them? It might also be a good idea to include Nichicon caps in a similar test, as they are renowned for being 'good' caps. The spate of failures was limited to a certain batch of caps, and the problem should not come up again.
          Well, i think Nichicon isn`t bad aktuall, but some batches are certainely bad. Up to now, i don`t have a bad feeling about those Nichicon HM(N) caps in my new Gigabyte GBU8x board.

          Originally posted by Tom41
          Next, do a battle of the bad caps (such as Tayeh and GSC) - see which ones vent first!
          Who is interested in crap vs crap?
          Both brands your mentioned are absolut BS, why bother with those caps?
          No seriouse recapper will use them for any purpose.

          The only other brands wich will be intersting could be Capxon and may be Jamicon, but in any way, i have enough faith in those to use them without such an test.

          Comment


            #6
            Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

            ...Maybe Teapo as well - they seem to have improved.

            Tayeh vs. GSC would be fun just to see which truly is the worst of the worst. =D
            You know there's something wrong when you open up a PSU and are glad to find Teapos.
            Why I don't buy cheap cases!

            Comment


              #7
              Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

              And what about Chhsi?

              Comment


                #8
                Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

                Originally posted by Rainbow
                And what about Chhsi?
                That would be a funny test - I think best contenders for the "worst" prize would be Chhsi indeed (these seem to fail almost all the time), Rulycon (how dodgy can you get?), the TMS that Topcat posted, and the mysterious "SG" that our user "pinobot" found were starting to vent even before the machine was actually used.

                Fuhjyyu is probably not the very worst of the worst (heck, at least they have a website), but it has probably caused more grief than most due to such widespread use in ChannelWell PSUs...

                Comment


                  #9
                  Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

                  It sounds fun I can't download those pics now as i still in the area where only dialup available, can't wait till i get home and see those pics!

                  Someone mentions about Teapo? I told my friend to buy me some teapo caps but somehow they are dissapeared from the market.. I want to install them on some asus p4 board with ost caps. That would be Teapo vs Panasonic FJ (identical boards).

                  BTW, on my KT7 i have installed four Samxon GC caps (in the vrm input). The rest are Sanyo WG and some other jap caps. The PSU is FSP300-60BT with Nichicon HE and Sanyo WG in the ouput filter. That KT7 is a tough board.
                  days are so short when you actually do something..

                  Comment


                    #10
                    Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

                    Any Updates?

                    Comment


                      #11
                      Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

                      Originally posted by Tom41
                      Just out of interest, what were the original caps on the new motherboards before you recapped them?
                      From memory, both my Abit KT7's were covered in Jackons (grey/silver & green jacket)

                      This is an excellent idea TC... the term 'showdown' conjurs up images of gunslingers in the wildwest!
                      Viva LA Retro!

                      Comment


                        #12
                        Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

                        There is something that i do not understand about samxon caps. Looking at a lot spec. pdf, japanese cap manufacturer (nichicon, chemicon, panasonic) don't seem to make 8mm diameter 1.5cm tall 1000uf 6.3V caps only 820 uf.

                        So I wonder if samxons are over rated in some way.

                        Comment


                          #13
                          Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

                          A possibility that Samxon may be slightly over rated . Not huge difference from 820 to 1000.

                          All samples working well to date. Testing continues.
                          Gigabyte EP45-DS3L Ultra Reliable (Power saver)
                          Intel E8400 (3000Mhz) Bios temps. 4096Mb 800Mhz DDR2 Corsair XMS2 4-4-4-12
                          160Gb WD SATAII Server grade
                          Nvidia 8500GT 256Mb
                          160Gb WD eSATAII Server grade for backup.
                          Samsung 18x DVD writer
                          Pioneer 16x DVD writer + 6x Dual layer
                          33 way card reader
                          Windows XP Pro SP3
                          Thermaltake Matrix case with 430W Silent Power
                          17" Benq FP737s LCD monitor
                          HP Officejet Pro K5300 with refillable tanks

                          Comment


                            #14
                            Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

                            Rubycon mbz 1000uf 6.3v 8mm x 11.5mm.

                            Comment


                              #15
                              Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

                              Suggestion - use entierly same bios settings and same memory modules too - same size, same bank and same settings to ensure the comparable operation

                              ...and hey, Samxons got a disadvantage already! They was running already, while there Rubyes and Nichicons resting in stores yet

                              And one more question. The color of the IDE ports are somewhat different on the right mobo - why is that? Is the HW versions of these mobos identical?

                              And the missing Vcore final cap are part of original design??? That suxx anyway...

                              ------------------

                              Shroomie -
                              Maybe Teapo as well - they seem to have improved.
                              Don't make me laugh. Teapos was used into the pre-testing boards A9RX480 Grouper by Sappire and failed miserably within few weeks for many reviewers around the world! Improved? Blah!


                              Rainbow -
                              And what about Chhsi?
                              Now your reply make me laugh loud You can't be serious - Topcat sure ain't going to find a source for such inferior crap...


                              nsx29 - I doubt it, since there actually are even smaller 1000uF caps, not to mention that for example Pannyes are usually bigger caps that all others. A nice example - Panny FM 470uF 16V is d8x16 while Samxon GC 470uF 16V is d8x12.
                              Both d8 are more likely 8.2mm in reality with the PVC enclosure anyway.

                              So, in the size Samxons GC = Rubycons MBZ. Specs favorizing Samxons, tough. By a huge margin:
                              Samxon GC 1800uF 16V - impedance 0,009 - ripple current 3190 (2 000 h) 10x25 - (2200uF 0,008 3370mA - 12,5x25)
                              Rubycon MBZ 1800uF 16V - impedance 0,013 - ripple current 2800 (2 000 h) 10x23

                              Ruby MCZ compete well with GC:
                              Rubycon MCZ 1800uF 16V - impedance 0,009 - ripple current 3230 (2 000 h) 10x25

                              However are nowhere near to be found except few pieces from WaiFong.hk ...
                              "It is dangerous to be right in matters on which the established authorities are wrong." - Voltaire
                              "I believe that all the people who stand to profit by a war and who help provoke it should be shot on the first day it starts..." - Hemingway my config - my caps

                              Comment


                                #16
                                Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

                                Originally posted by trodas
                                And one more question. The color of the IDE ports are somewhat different on the right mobo - why is that? Is the HW versions of these mobos identical?

                                And the missing Vcore final cap are part of original design??? That suxx anyway...
                                The colored IDE ports are HighPoint 370 RAID.
                                My SAMXON Capacitors Database HERE!!

                                X-CON is a new brand for SAMXON's Polymer Capacitors.

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                                  #17
                                  Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

                                  Well, yes. Sure they are RAID ports, and they are (with the chipset that control them, clearly marked...) on all mobos. However my question was why these colors aren't identical (as they usualy are) or and if these mobos are the same HW revision of the PCB
                                  The bottom line of course is, that different mobo revision could have some impact on the test. Probably low, but... who can say that for sure? We don't even know if the impact would be good or bad...

                                  Sure, with limited resources and so on, we probably can't get ideal testing, however we should try our best, should we?

                                  After all, we should stuff this one with Nichicons, where we can afford some uncertainity, and not Rubycons to get at least the comparsion with Samxons and Rubycons straight as much, as we can
                                  "It is dangerous to be right in matters on which the established authorities are wrong." - Voltaire
                                  "I believe that all the people who stand to profit by a war and who help provoke it should be shot on the first day it starts..." - Hemingway my config - my caps

                                  Comment


                                    #18
                                    Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

                                    I was given a 4th KT7 this morning. Is there one more brands we'd like to add to this experiment? Sanyo (my next favorite to Rubycon)? Nichicon maybe? I'm not a big fan of Nichicon after the HN and HM mess.... opinions?
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                                      #19
                                      Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

                                      I would like to see Nichicon to clear up the HM HN mess.

                                      Comment


                                        #20
                                        Re: The Great Capacitor Showdown - Rubycon vs Panasonic vs Samxon

                                        I'm actually leaning more toward Sanyo WG's over Nichicon's. I don't have a source for them though....
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