Fuyjju Bad Caps

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  • bugmenot
    Banned
    • Aug 2005
    • 10
    #1

    Fuyjju Bad Caps

    Hi, I found some bunk 1000uF 10V Fuyjju caps in my Flex ATX power supply. Sorry no photos... Leaking electrolyte, typical symptoms of intermittent system failure. Unfortunately I tweaked around too much before I realized it was the caps, now (after recapping) I get an intermittent buzzing that sounds like either a bad transformer or perhaps a blown transistor. However I still get power, it's just not sufficient voltage or it's unstable enough for the system to refuse to get past POST. I have no test equipment so I am shooting in the dark. Anybody have any ideas?

    Thx
    Bug
    Tags: None
    • willawake
      Super Modulator
      • Nov 2003
      • 8457
      • Greece
      #2
      Re: Fuyjju Bad Caps

      you are not alone with the Fuhjyyu
      http://www.dslreports.com/forum/remark,14116577
      we had an old post with some crazy pics of Fuhjyyu fails also but were hosted offsite and got lost.

      there are a few guys here who can assist. hopefully they will pass by this weekend.
      capacitor lab yachtmati techmati

        Comment

        • Chris1992
          Badcaps Veteran
          • Apr 2005
          • 561
          #3
          Re: Fuyjju Bad Caps

          Wondered when this would come up - Antec use Fuhjyyu in their psus. However they don't make FlexATX to my knowledge... You're probably out of luck, bug. Hard to find FlexATX psus nowadays...
          The great capacitor showdown!

            Comment

            • RJARRRPCGP
              Badcaps Legend
              • Jul 2004
              • 6304
              • USA
              #4
              Re: Fuyjju Bad Caps

              Just did a cap inspection on my Antec True 430 power supply approximately 10 minutes ago and the caps appeared to be OK.
              ASRock B550 PG Velocita

              Ryzen 9 "Vermeer" 5900X

              32 GB G.Skill RipJaws V F4-3200C16D-32GVR

              Arc A770 16 GB

              eVGA Supernova G3 750W

              Western Digital Black SN850 1TB NVMe SSD

              Alienware AW3423DWF OLED




              "¡Me encanta "Me Encanta o Enlistarlo con Hilary Farr!" -Mí mismo

              "There's nothing more unattractive than a chick smoking a cigarette" -Topcat

              "Today's lesson in pissivity comes in the form of a ziplock baggie full of GPU extension brackets & hardware that for the last ~3 years have been on my bench, always in my way, getting moved around constantly....and yesterday I found myself in need of them....and the bastards are now nowhere to be found! Motherfracker!!" -Topcat

              "did I see a chair fly? I think I did! Time for popcorn!" -ratdude747

                Comment

                • Chris1992
                  Badcaps Veteran
                  • Apr 2005
                  • 561
                  #5
                  Re: Fuyjju Bad Caps

                  How old is your True430?
                  The great capacitor showdown!

                    Comment

                    • willawake
                      Super Modulator
                      • Nov 2003
                      • 8457
                      • Greece
                      #6
                      Re: Fuyjju Bad Caps

                      yeh i got several chieftecs (same as antec), all teapo etc no probs yet
                      capacitor lab yachtmati techmati

                        Comment

                        • RJARRRPCGP
                          Badcaps Legend
                          • Jul 2004
                          • 6304
                          • USA
                          #7
                          Re: Fuyjju Bad Caps

                          Originally posted by Chris1992
                          How old is your True430?
                          I purchased it on October 23, 2003.
                          ASRock B550 PG Velocita

                          Ryzen 9 "Vermeer" 5900X

                          32 GB G.Skill RipJaws V F4-3200C16D-32GVR

                          Arc A770 16 GB

                          eVGA Supernova G3 750W

                          Western Digital Black SN850 1TB NVMe SSD

                          Alienware AW3423DWF OLED




                          "¡Me encanta "Me Encanta o Enlistarlo con Hilary Farr!" -Mí mismo

                          "There's nothing more unattractive than a chick smoking a cigarette" -Topcat

                          "Today's lesson in pissivity comes in the form of a ziplock baggie full of GPU extension brackets & hardware that for the last ~3 years have been on my bench, always in my way, getting moved around constantly....and yesterday I found myself in need of them....and the bastards are now nowhere to be found! Motherfracker!!" -Topcat

                          "did I see a chair fly? I think I did! Time for popcorn!" -ratdude747

                            Comment

                            • Chris1992
                              Badcaps Veteran
                              • Apr 2005
                              • 561
                              #8
                              Re: Fuyjju Bad Caps

                              Hmm. So Antec/Chieftec use both Teapo and Fuhjyyu.
                              The great capacitor showdown!

                                Comment

                                • willawake
                                  Super Modulator
                                  • Nov 2003
                                  • 8457
                                  • Greece
                                  #9
                                  Re: Fuyjju Bad Caps

                                  is anybody gonna reply to the original question?
                                  capacitor lab yachtmati techmati

                                    Comment

                                    • kc8adu
                                      Super Moderator
                                      • Nov 2003
                                      • 8832
                                      • U.S.A!
                                      #10
                                      Re: Fuyjju Bad Caps

                                      the bad caps cause excessive ripple and noise that makes the system unstable.
                                      a recap or replacement psu should fix it.the buzzing will be fixed too.it is due to the pwm chip seeing its own spikes from the reference on the output.
                                      that is it samples usually +5 and if it is noisy the psu will hiss,fizz buzz,ect

                                        Comment

                                        • bugmenot
                                          Banned
                                          • Aug 2005
                                          • 10
                                          #11
                                          Re: Fuyjju Bad Caps

                                          GREAT forum, thanks for the help. I forgot to mention I only replaced 2 out of 4 caps, which were the obviously bad caps (I guess the others could still be fried but not exhibiting symptoms). Problem was, the replacement caps are 3 times the size of the originals- this makes for some difficult squeezing things into the enclosure. Also some of the new caps are almost an inch off the board, however I did insulate the leads to prevent shorts. I figured if I blew a power transistor or transformer forget it, but if the buzzing could be fixed by recapping the other 2 I will definitely try that. I should have a report back in a few days if anybody is interested. I will submit a pic of the ridiculously stuffed enclosure...

                                          Finally, my PSU is ACHME Flex ATX AM630BS20S

                                          Also, looks like this character did exactly what I been trying to do:

                                          http://forums.sudhian.com/messagevie...keyword1=achme

                                            Comment

                                            • kc8adu
                                              Super Moderator
                                              • Nov 2003
                                              • 8832
                                              • U.S.A!
                                              #12
                                              Re: Fuyjju Bad Caps

                                              fwiw i get tons of swi prototrak heads in for overhaul.
                                              the +5 +12 in the psu on the m2 has fujjiu caps.even if not vented they are always high esr.
                                              easy to spot as you get artifacts when the logo comes sliding on startup or you select dro mode ,ect.
                                              started seeing bad ones in pc psu's 5 years ago.

                                                Comment

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