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    #1

    Replacing KZG's

    I posted in the asus-mobo forum a few day ago and received no response so I thought I'd re-ask in here as I'm unsure if I've asked the wrong questions or in the wrong place.

    I have a ASUS IPIBL-LB running an intel xeon e5450.
    It has started to hang... and then recover after a while.

    It has 13 KZG's on it, one of which has bloated/vented.

    Having read on here that KZG's are not the best I have been searching for a replacement for all of them.



    (again, excuse the typo of KZG/NZG)

    reading on here has got confusing with a lot of suggestions for caps that I just don't seem to be able to get, or to go poly.

    I can't seem to find any electrolytics that match the kzg specifications available... Closest I've got is :

    NCC KZG 16V 1000uF KZG16VB102M8X20LL 8x20mm esr-0.021 ripple-1,870

    Wrong ESR - Ripple
    RUBYCON ZLH 16V 1000uF 16ZLH1000MEFC8X20 8x20mm esr-0.029 ripple-1500
    Panasonic FR 16V 1000uF EEUFR1C102L 8x20mm esr-0.030 ripple-1560
    Wrong Size -ESR and Ripple still out (by less)
    RUBYCON ZL 16V 1000uF 16ZL1000MEFC10X20 10x20mm esr-0.023 ripple-1820

    I'd certainly interested in polys for replacing the caps right next to the northbridge, they practically touch the heatsink.

    If I do go poly, do I go with the same ESR and change the capacitance or try to find the closest match???

    There seems to be different advice depending on what its for... I assume the caps (that look like polys?) round the cpu and are next to the pci-e slots are for the vrms?

    anyway this really isn't my area... I know enough to worry about getting it wrong...

    So.. any advice please?
    Tags: None
    #2
    Re: Replacing KZG's

    rubycon MBZ
    1870ma
    0.019 esr
    Attached Files

    Comment

      #3
      Re: Replacing KZG's

      they do seem to fit the bill regarding esr and ripple. (esr and ripple are an exact match for 5/6)... I'd seen them suggested on here but as I can't find them for sale anywhere, I'd discounted them.

      Googling for them only seems to bring up the news of their discontinuance, ebay amazon and ali-express.

      Any help with sourcing these or finding other suitable caps?

      Comment

        #4
        Re: Replacing KZG's

        What about 10mm diameter caps? The board does not look that cramped...
        You can use Suncon WX then (formerly Sanyo)

        1000uF 16v 0.023Ω ESR 1.82A Ripple

        Or even better Suncon WG if you can find them, but the fact of the matter is that most manufacturers are switching more and more of their production over to solid polymer caps...
        "The one who says it cannot be done should never interrupt the one who is doing it."

        Comment

          #5
          Re: Replacing KZG's

          thanks...not in rs or farnell....

          how would I go about identifying suitable replacement polymers?

          or a source of any ultra low esr capacitors that supplies the UK?

          The only ones i've found so far are farnell and I could have some 1000uF nichicon hm... US stock... £0.94 for the capacitors... almost £20 shipping and handling, and that's not even dealing with the actual faulty capacitor, only 5 of the 13 KZG's on the board. They don't have any lower capacitances listed even though they are in the range.

          I'm currently searching through old boards to see if I have anything that would go in... if only just to replace the puffed up 820uf for now so the board doesn't die while I source the caps to recap the board.
          Last edited by DarkInferno; 02-22-2015, 07:15 AM.

          Comment

            #6
            Re: Replacing KZG's

            For the 5 16V 1000uF on the VRM high that are 8mm in diameter, you can also use 16V 270uF polymer caps. As for a source for low cost capacitors in Europe, please PM me.

            If you want an updated BIOS for your board, since you're using a Harpertown Xeon, please find one attached to this post, with updated 45nm microcodes (5.43).

            There is also the possibility of updating certain option ROMS, but I'm not sure if this board allows enabling AHCI in the BIOS or not, but if it does, LMK, and I'll see what I can do.
            Attached Files
            Last edited by mockingbird; 02-22-2015, 08:46 AM.
            "We have offered them (the Arabs) a sensible way for so many years. But no, they wanted to fight. Fine! We gave them technology, the latest, the kind even Vietnam didn't have. They had double superiority in tanks and aircraft, triple in artillery, and in air defense and anti-tank weapons they had absolute supremacy. And what? Once again they were beaten. Once again they scrammed [sic]. Once again they screamed for us to come save them. Sadat woke me up in the middle of the night twice over the phone, 'Save me!' He demanded to send Soviet troops, and immediately! No! We are not going to fight for them."

            -Leonid Brezhnev (On the Yom Kippur War)

            Comment

              #7
              Re: Replacing KZG's

              You can try www.elfa.se
              It's where I source caps that I need fast in Sweden, they do offer reasonable shipping in Europe.
              The cap I listed in my previous post has their partno: 67-234-07
              "The one who says it cannot be done should never interrupt the one who is doing it."

              Comment

                #8
                Re: Replacing KZG's

                I have AHCI listed in my bios but I haven't used it yet I was going to use it when I get my ssd, but thats been put on hold since it has been playing up.

                Right... I've just cannibalised a few old motherboards that I've been keeping for.... some reason.... I kept all the caps that I thought I'd heard on here, I have :

                Fujitsu Yellow and black FP?
                5 x 4v 560uf

                Rubycon MBZ
                3 x 16v 1800uf
                12x 6.3v 1500uf

                Nichicon HM
                3 x 10v 2200uf
                2 x 6.3v 1800uf

                Nichicon HD
                4 x 16v 1200uf

                and a Panasonic FJ 6.3v 820uf

                Any of those any good? other then the Panasonic the seem too large but I'm going to have a look through some datasheets.

                Comment

                  #9
                  Re: Replacing KZG's

                  the fujitsu's are polymer!

                  Comment

                    #10
                    Re: Replacing KZG's

                    would they safely go in the place of of my 820s though? I thought they were too low voltage... but I don't know if they would likely be on 5 volt or 3.3... or lower?

                    Comment

                      #11
                      Re: Replacing KZG's

                      No, what you have won't work. The KZG on the VRM high are 8mm. What you have are all 10mm. Check your PM.
                      "We have offered them (the Arabs) a sensible way for so many years. But no, they wanted to fight. Fine! We gave them technology, the latest, the kind even Vietnam didn't have. They had double superiority in tanks and aircraft, triple in artillery, and in air defense and anti-tank weapons they had absolute supremacy. And what? Once again they were beaten. Once again they scrammed [sic]. Once again they screamed for us to come save them. Sadat woke me up in the middle of the night twice over the phone, 'Save me!' He demanded to send Soviet troops, and immediately! No! We are not going to fight for them."

                      -Leonid Brezhnev (On the Yom Kippur War)

                      Comment

                        #12
                        Re: Replacing KZG's

                        the fujitsus and all the rubycon 6.3v's are 8mm..

                        Comment

                          #13
                          Re: Replacing KZG's

                          Yes, but you can't use them to replace the 6.3V 820uF KZG because you're not sure whether those caps are sitting on a 3.3V or 5V rail. As for the single 16V 470uF KZG by the PCIe slot, it is definitely on the 12V rail.

                          You can't use the 8x20mm 6.3V 1500uF caps because the VRM high is 12V.
                          "We have offered them (the Arabs) a sensible way for so many years. But no, they wanted to fight. Fine! We gave them technology, the latest, the kind even Vietnam didn't have. They had double superiority in tanks and aircraft, triple in artillery, and in air defense and anti-tank weapons they had absolute supremacy. And what? Once again they were beaten. Once again they scrammed [sic]. Once again they screamed for us to come save them. Sadat woke me up in the middle of the night twice over the phone, 'Save me!' He demanded to send Soviet troops, and immediately! No! We are not going to fight for them."

                          -Leonid Brezhnev (On the Yom Kippur War)

                          Comment

                            #14
                            Re: Replacing KZG's

                            DarkInferno -

                            If you're interested, you can order these parts locally from Farnell that are suitable replacements, the catch being that these capacitors are "awaiting delivery". This way you shouldn't have to pay exorbitant shipping for the US stock.

                            1) 16V 1000uF, 8x20mm, UCC KZG
                            this, or this.

                            2) 6.3V 820uF, 8x11.5mm, UCC KZG
                            this, or this, or this.

                            3) 16V 470uF, 8x11.5mm, UCC KZG
                            this
                            "We have offered them (the Arabs) a sensible way for so many years. But no, they wanted to fight. Fine! We gave them technology, the latest, the kind even Vietnam didn't have. They had double superiority in tanks and aircraft, triple in artillery, and in air defense and anti-tank weapons they had absolute supremacy. And what? Once again they were beaten. Once again they scrammed [sic]. Once again they screamed for us to come save them. Sadat woke me up in the middle of the night twice over the phone, 'Save me!' He demanded to send Soviet troops, and immediately! No! We are not going to fight for them."

                            -Leonid Brezhnev (On the Yom Kippur War)

                            Comment

                              #15
                              Re: Replacing KZG's

                              Thanks a lot, I had looked at them I didn't notice that they were awaiting delivery but as I haven't seen or know anything about wurth elektronik (I'm possibly showing myself up there) so I'd practically discounted them...

                              Comment

                                #16
                                Re: Replacing KZG's

                                Having a look at wurth caps.. the 470 you gave was 10mm? Had a look on RS and they have stock of wurth caps.

                                Would it be possible for you to check these are sensible before I buy please.

                                1) 16V 1000uF, 8x20mm, UCC KZG
                                270μF 16 V 8x8mm

                                2) 6.3V 820uF, 8x11.5mm, UCC KZG
                                820μF 6.3 V 8x8mm

                                3) 16V 470uF, 8x11.5mm, UCC KZG
                                470μF 16 V 8x11.5mm

                                Comment

                                  #17
                                  Re: Replacing KZG's

                                  Originally posted by DarkInferno View Post
                                  Having a look at wurth caps.. the 470 you gave was 10mm? Had a look on RS and they have stock of wurth caps.
                                  So it was. Sorry about that.

                                  Would it be possible for you to check these are sensible before I buy please.
                                  Looks good to me.

                                  Go for it.

                                  Wurth Elektronik seems to me to be a re-brander, so they mght not be Japanese polymers, but they should do the job.
                                  Last edited by mockingbird; 02-23-2015, 12:08 AM.
                                  "We have offered them (the Arabs) a sensible way for so many years. But no, they wanted to fight. Fine! We gave them technology, the latest, the kind even Vietnam didn't have. They had double superiority in tanks and aircraft, triple in artillery, and in air defense and anti-tank weapons they had absolute supremacy. And what? Once again they were beaten. Once again they scrammed [sic]. Once again they screamed for us to come save them. Sadat woke me up in the middle of the night twice over the phone, 'Save me!' He demanded to send Soviet troops, and immediately! No! We are not going to fight for them."

                                  -Leonid Brezhnev (On the Yom Kippur War)

                                  Comment

                                    #18
                                    Re: Replacing KZG's

                                    Originally posted by mockingbird View Post
                                    Wurth Elektronik seems to me to be a re-brander, so they mght not be Japanese polymers, but they should do the job.
                                    I have no clue if they are good or not. I do know that Wurth makes inductors... actually I never knew they made (or "made") capacitors!...
                                    Muh-soggy-knee

                                    Comment

                                      #19
                                      Re: Replacing KZG's

                                      So.... recapped



                                      Seems stable... I have ran IntelBurnTest on Very High stress level and it passed.

                                      Currently have FurMark running and all seems fine.

                                      Is there any way of specifically loading up the board to induce failure if the caps are not up to par?
                                      Attached Files

                                      Comment

                                        #20
                                        Re: Replacing KZG's

                                        Good job.

                                        Try OCCT. That's the most strenuous benchmark I've ever seen.

                                        Don't forget to update the BIOS microcodes. If you run Harpertown on this platform, you'll miss out on some CPU features.

                                        Here's what my Harpertown looks like in CPU-Z after a microcode update:



                                        Using a very similar board to yours (Asus P5B).
                                        Attached Files
                                        "We have offered them (the Arabs) a sensible way for so many years. But no, they wanted to fight. Fine! We gave them technology, the latest, the kind even Vietnam didn't have. They had double superiority in tanks and aircraft, triple in artillery, and in air defense and anti-tank weapons they had absolute supremacy. And what? Once again they were beaten. Once again they scrammed [sic]. Once again they screamed for us to come save them. Sadat woke me up in the middle of the night twice over the phone, 'Save me!' He demanded to send Soviet troops, and immediately! No! We are not going to fight for them."

                                        -Leonid Brezhnev (On the Yom Kippur War)

                                        Comment

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