Announcement

Collapse
No announcement yet.

The Hall of Shame - Badcaps Photo Montage

Collapse
This is a sticky topic.
X
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Re: The Hall of Shame - Badcaps Photo Montage

    Or hard disk took a big hit from lousy PSU :-)), which is not uncommon on mobo's powered from +5V rail...

    If you're lucky, low level formatting tool from manufacturer can help, run it few times (more than three times), and you will restore disk to original state, if problem was magnetism and not flying mechanism...

    Also checking ALL capacitors on +5V rail, is not a bad idea, maybe beefing up capacitance one notch...

    Was always puzzled, why are hard disks powered from PSU, and not from motherboard, some nice power connector on motherboard, and cable to hard disk :-))...

    Comment


      Re: The Hall of Shame - Badcaps Photo Montage

      Originally posted by RJARRRPCGP View Post
      Sounds like it's a 6E040L0! Those usually fail with major lag symptoms. The 6Exxxxx is the worst series from Maxtor!

      Taking a long time to read the bootloader appears to be a common symptom.

      Same with stuttering.
      Those Maxtors always suffer from firmware corruption problems, which would eventually lead to slow sectors (as it runs out of spare sectors to remap). And was those slow sectors, cause weird lags. Fire up ye olde Windows 98 pure DOS mode SCANDISK, and you can see those slow sector effects during surface scans. These drives have major failure rates...

      Originally posted by tmiha71 View Post
      Or hard disk took a big hit from lousy PSU :-)), which is not uncommon on mobo's powered from +5V rail...

      If you're lucky, low level formatting tool from manufacturer can help, run it few times (more than three times), and you will restore disk to original state, if problem was magnetism and not flying mechanism...

      Also checking ALL capacitors on +5V rail, is not a bad idea, maybe beefing up capacitance one notch...

      Was always puzzled, why are hard disks powered from PSU, and not from motherboard, some nice power connector on motherboard, and cable to hard disk :-))...
      Huh?

      Comment


        Re: The Hall of Shame - Badcaps Photo Montage

        fake nichicons in a product?
        http://www.banggood.com/DC-LED-Digit...-p-910096.html

        Comment


          Re: The Hall of Shame - Badcaps Photo Montage

          Originally posted by kc8adu View Post
          No wonder, the website is called 'banggood'!!!
          Muh-soggy-knee

          Comment


            Re: The Hall of Shame - Badcaps Photo Montage

            With the Teapo vent stamp

            Comment


              Re: The Hall of Shame - Badcaps Photo Montage

              My Aoyue 2900 digital soldering station has fake 25V 470 uF Rubycon ZL caps. It's really funny, because the caps under the sleeve are sleevless caps with markings on the top. I don't know how to explain it better. I guess I will take some pics when I get back home for winter break.
              Surprisingly, they haven't bulged yet, and that station is almost 2 years old now and has seen quite a bit of use (and a little bit of abuse - not by me - like being left ON overnight many times).

              Comment


                Re: The Hall of Shame - Badcaps Photo Montage

                Originally posted by momaka View Post
                My Aoyue 2900 digital soldering station has fake 25V 470 uF Rubycon ZL caps. It's really funny, because the caps under the sleeve are sleevless caps with markings on the top. I don't know how to explain it better. I guess I will take some pics when I get back home for winter break.
                Surprisingly, they haven't bulged yet, and that station is almost 2 years old now and has seen quite a bit of use (and a little bit of abuse - not by me - like being left ON overnight many times).
                Do they look something like this, the lacquer-coated capacitors without sleeves, and markings on the top, in the VRM input circuit of that motherboard? If they do, I don't think they're fake. Early Nichicon HDs were similarly sleeveless with writing on the top before the sleeved ones came to bear.

                Comment


                  Re: The Hall of Shame - Badcaps Photo Montage

                  ^ Yes they are, but I know they are fake because there is a black sleeve on top of the sleeveless caps (so where the stamp is on the cap, it says 25V 470 uF, and then there's the actual black sleeve which also says 25V 470 uF, except this black sleeve claims the cap is a Rubycon ZL). The sleeveless caps underneath look very much like Sacon FZ (although I do not recall seeing FZ written anywhere on them).

                  Comment


                    Re: The Hall of Shame - Badcaps Photo Montage

                    Originally posted by momaka View Post
                    ^ Yes they are, but I know they are fake because there is a black sleeve on top of the sleeveless caps (so where the stamp is on the cap, it says 25V 470 uF, and then there's the actual black sleeve which also says 25V 470 uF, except this black sleeve claims the cap is a Rubycon ZL). The sleeveless caps underneath look very much like Sacon FZ (although I do not recall seeing FZ written anywhere on them).
                    Don't tease us, we need pics! :P
                    Muh-soggy-knee

                    Comment


                      Re: The Hall of Shame - Badcaps Photo Montage

                      Originally posted by kc8adu View Post
                      Originally posted by Pentium4 View Post
                      With the Teapo vent stamp
                      Had one of these actually, which I used it only for testing (whenever I ran out of capacitors with appropriate values and ratings). Found it in the local market, just bought it for fun...

                      See the attached pictures (taken quite some time ago). Next to the fake Nichicon (1000uF 35V) is a real Nichicon (1000uF 25V, much taller one) Those used G-Luxon capacitors (pulled out of Creative sound dock for re-capping) were still good, also used temporarily for testing only (will not use them for actual repairs). These capacitors were tested on a BenQ FP222W power supply board (which was brought back to life after testing)...
                      Attached Files

                      Comment


                        Re: The Hall of Shame - Badcaps Photo Montage

                        Hmm, I wonder if they're actual Teapo caps with a nichicon sleeve or if they just forged the stamp. Either way, shouldn't be used on hot power boards. Unless testing

                        Comment


                          Re: The Hall of Shame - Badcaps Photo Montage

                          Originally posted by ben7 View Post
                          Don't tease us, we need pics! :P
                          And finally I got around to it...

                          Here are two obviously fake Rubycon ZL caps found in a Circuit Specialists CSI 2900 soldering station (a rebardge Aoyue 2900):
                          https://www.badcaps.net/forum/attach...1&d=1388365550
                          https://www.badcaps.net/forum/attach...1&d=1388365550

                          Sorry for not providing any pics of the bungs. I was in a rush and decided to leave the caps in the station since they are only doing general purpose duty, filtering 60 Hz ripple. I doubt they will cause a problem, anyways.
                          Attached Files

                          Comment


                            Re: The Hall of Shame - Badcaps Photo Montage

                            Working on 45-foot high 1000Watt metal halide pole lights today. Glass lens completely fogged and smoke-covered. It could be seen from the ground. We opened up the fixture and this is what remained of a 24uF, 480Volt plastic-can electrolytic cap...... Not much smoke left to release!
                            Attached Files
                            Stupidity should be a crime, especially for drivers. I have NO patience for them.

                            Comment


                              Re: The Hall of Shame - Badcaps Photo Montage

                              Originally posted by delaware74b View Post
                              Working on 45-foot high 1000Watt metal halide pole lights today. Glass lens completely fogged and smoke-covered. It could be seen from the ground. We opened up the fixture and this is what remained of a 24uF, 480Volt plastic-can electrolytic cap...... Not much smoke left to release!
                              You sure it is an electrolytic? I think those are usually film capacitors used in that kind of environment. I doubt an electrolytic would melt like that!
                              Muh-soggy-knee

                              Comment


                                Re: The Hall of Shame - Badcaps Photo Montage

                                Ben7 - This particular one was a plastic-canned dry film capacitor, part of a Sola-branded ballast kit installed in '09. This was the most-spectacular failure I have seen except for one that had a nearby lightning strike. That one had a complete melt-down. Copper splatter and no windings left

                                FWIW, The Sylvania version of this kit is identical to this kit except for the label on the ballast core. Capacitor is the same one, same inline factory-installed crimp/heatshrink setup.

                                The Philips/Advance kits use an oil-filled cap, usually by Aerovox. I looked up the specs for the Aerovox and they have a 60,000 hour rating.

                                The fixtures in this particular shopping mall are 480 or 208 volt. The original ballast kits are single-tap 480-only with GE caps from '97-98 and 90% have been replaced. We were replacing complete kits but have found a reliable source of the Aerovox caps at $20 each instead of $120 for a kit just because the caps has gone out of spec. The caps are rated for +/- 3% before they are considered bad. No ESR readings for these caps needed. Under spec is how they fail, low light output and short lamp life. We check them every time a lamp is replaced due to they height and access issues.
                                Stupidity should be a crime, especially for drivers. I have NO patience for them.

                                Comment


                                  Re: The Hall of Shame - Badcaps Photo Montage

                                  Originally posted by delaware74b View Post
                                  Working on 45-foot high 1000Watt metal halide pole lights today. Glass lens completely fogged and smoke-covered. It could be seen from the ground. We opened up the fixture and this is what remained of a 24uF, 480Volt plastic-can electrolytic cap...... Not much smoke left to release!
                                  Amazing!

                                  I bet this is what GSC/Sacon/Evercon and CapXon all aspire to achieve .

                                  Comment


                                    Re: The Hall of Shame - Badcaps Photo Montage

                                    Fake blue printed Jamicon TS 16v,16uF,105°
                                    - from original power supply FSP ATX350-PNF (FORTRON)
                                    - confirmed by JAMICON
                                    Attached Files
                                    Last edited by zuhr14; 01-22-2014, 04:36 AM.

                                    Comment


                                      Re: The Hall of Shame - Badcaps Photo Montage

                                      I've never heard about Jamicon TS Series - it doesn't even appear on the chart at www.icd-sales.com (Jamicon distributor).
                                      My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics.

                                      Comment


                                        Re: The Hall of Shame - Badcaps Photo Montage

                                        Yes, TS series of Jamicon caps really never existed. This is not any discontinued series. Only fake manufacturer, who use their brand

                                        Comment


                                          Re: The Hall of Shame - Badcaps Photo Montage

                                          16uF?!!!!
                                          WTF

                                          I've seen a few 15uF, but never a 16uF...!
                                          Muh-soggy-knee

                                          Comment

                                          Working...
                                          X