Need help whith choosing right caps

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  • ZuluLima
    Member
    • Feb 2010
    • 35
    • U.S.A.
    #1

    Need help whith choosing right caps

    I'm getting ready to recap an Intel D875pbz and need to replace four 10mm 16v 1200uF united-chemicon KZE's in the vrm (not the cap's by the socket). I need to know if I should go with 16v 1500uF or 16v 1000uF MCZ Rubycons? I have some correct 16v 1200uF Rubycon ZL to put in, but would rather go with MCZ. The cpu is powered by six SEPC polymers and five 6.3v 820uF MCZ's. So the question is will the increaced or decreased capacitance from the MCZ's I want be a mistake? Or will the ZL's offer great power to the system?

    Also, does anyone know the ESR to a Rubycon 16v 1200uF ZL cap?
    Tags: None
    • yyonline
      Badcaps Veteran
      • Jul 2009
      • 692
      • USA
      #2
      Re: Need help whith choosing right caps

      ZL is a perfectly adequate replacement for KZE.

      Have the KZE failed, or are you just replacing preemptively? KZE is normally a reliable series, so a failure would be ususual, but anything's possible. For the chemicon capacitors, KZG and KZJ are unreliable; KZE is good though.

      If they have failed, check your power supply. If the power supply is not sending clean power, it could have stressed them to the point of failing.

        Comment

        • ZuluLima
          Member
          • Feb 2010
          • 35
          • U.S.A.
          #3
          Re: Need help whith choosing right caps

          Preemptively. It's too late for the KZE. I already desoldered them. I'm trying to build a super duper 3.4ghz, 4gigs ram, HD 3850 P4 system (478). For the heck of it I want to get the cleanest most low noise power to every componet in the system. The power supply is an Antec new true power TP 650W recaped with Rubycon (again lost united-chemicon).

            Comment

            • cap noob duh
              Member
              • Jan 2010
              • 28
              #4
              Re: Need help whith choosing right caps

              not lost, save the old ones.

                Comment

                • ZuluLima
                  Member
                  • Feb 2010
                  • 35
                  • U.S.A.
                  #5
                  Re: Need help whith choosing right caps

                  I'm thinking of going with four 16v 1500uF MCZ's. Will this later ruin the diodes or the regulator chip? Has anyone increased capacatance like this before?

                    Comment

                    • ZuluLima
                      Member
                      • Feb 2010
                      • 35
                      • U.S.A.
                      #6
                      Re: Need help whith choosing right caps

                      For the vrm output, could I change the five 4v 560uF SEPC and five MCZ 6.3v 820uF with ten 2.5v 820uF Nichicon LE Polymers? Or just ten 4v 820uF SEPC? The vrm input is going to be 16v 6000uF at 1.40v max.

                      Current value (mixed e+poly): 6.3v 18100uF ???
                      Poly mod (2.5v 820uF Nichicon poly): 2.5v 8200uF
                      Poly mod (4v 820 SEPC): 4v 8200uF

                      Does the D875PBZLK need all that capacatance to run a prescott? Or can I do a poly mod?

                        Comment

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